The velocity of the bowling ball is 4 m/s when mass of the bowling ball is 3.5 kg and momentum given is 14kgm/s.
As we know that,
Momentum= Mass* Velocity
p=mv
Here, Mass of the Bowling Ball(m)= 3.5 Kg
Momentum(p)= 14kgm/s
Velocity= Momentum/Mass
=14/3.5 = 4m/s
The definition of momentum is "mass in motion." Since every item has mass, if it is moving, it must have momentum since its mass is in motion. The quantity of motion and the speed of the motion are the two factors that determine how much momentum an item possesses. The factors mass and velocity affect momentum. According to an equation, an object's momentum is determined by multiplying its mass by its velocity.
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To answer this question, we need to use the formula for momentum, which is:
momentum = mass * velocity
We can rearrange this formula to solve for velocity, which is:
velocity = momentum/mass
We are given the momentum and the mass of the bowling ball, so we can plug them into the formula:
velocity = 14 / 3.5
We can simplify this expression by dividing both numbers by 0.5:
velocity = 28 / 7
We can convert this fraction into a decimal by dividing the numerator by the denominator:
velocity = 4
Therefore, the bowling ball is travelling at 4 m/s.
carol lifts a 1000 n barbell 1.5 m in 1.0 s while sam lifts a 1400 n barbell 2.0 m in 2 s whose lift was more powerful?
Carol Bill had a stronger lift than Bob (1400 N x 2.0 m / 2.0 s = 1400 W vs. 1000 N x 1.5 m / 1.0 s (= 1500 W).
Why do they go by the name Bills?The All-America Football Association (AAFC) team from Buffalo that bore the same moniker as the western frontiersman Buffalo Bill is whence the Bills got their name. The Bills have been the only NFL club that holds home games in Western New York and draw a sizable portion of their fan base from there.
What does "bill" mean in English?William's short form (hypocorism), Bill, is a male given name that is typically used for boys. It can also be used as an English translation of the common Greek name Vasilis and Vasileios (Basil), particularly among Greek immigrants in Language nations, perhaps as a result of the similarity in pronunciation.
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An airplane is flying in a horizontal circle at a
speed of 105 m/s. The 87.0 kg pilot does not
want the centripetal acceleration to exceed
6.27 times free-fall acceleration.
Find the minimum radius of the plane's
path. The acceleration due to gravity is 9.81
m/s².
Answer in units of m.
An airplane is flying in a horizontal circle at a speed of 105 m/s. 179.2 m is the minimum radius of the plane's.
What is centripital acceleration?Centripetal acceleration is defined as the property of the motion of an object, traversing a circular path. Any object that is moving in a circle and has an acceleration vector pointed towards the center of that circle is known as Centripetal acceleration.
The force causing this acceleration is directed also toward the centre of the circle and is named centripetal force
Centripital acceleration = velocity² ÷ radius of the circle
According to the question:
centripital acc ≤ 6.27g
velocity² ÷ radius of the circle ≤ 6.27g
v²÷ R = 6.27× 9.81
= 61.5
Radius of the planes path = V²÷61.50
= {105×105}/61.50
= 179.2 m
Radius of the planes path = 179.2 m
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in a completely inelastic collision between two objects, where the objects stick together after the collision, is it possible for the final kinetic energy of the system to be zero?
Yes, the final kinetic energy of the system can be zero if the collision is head-on and both objects have the same magnitude of momentum.
What is kinetic energy?Kinetic energy is the energy that an object has as a result of motion. To accelerate an object, a force must be supplied to it. To apply a force, we must exert effort.Energy is transferred to the object once the work is finished, at which point it moves at a new, constant speed.The energy of motion is known as kinetic energy, and it can be observed in the motion of a particle, an object, or a collection of particles. A person walking, a baseball being thrown, a piece of food falling from a table, or a charged particle in an electric field are all examples of moving objects that consume kinetic energy.To learn more about kinetic energy from the given link :
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several groups of students used the same procedure to measure the density of a specific object. the 15 different results are listed below in units of g/cm3. at a 95% confidence interval, give an estimation of the amount of random error present in any single result of this procedure.
An estimation of the amount of random error is + 1.08 g/cm³.
An error is taken into consideration randomly if the value of what's being measured every now and then goes up or once in a while goes down. a completely simple example is our blood pressure. although someone is wholesome, it is regular that their blood stress does now not continue to be exactly equal whenever it is measured.
Random errors are likewise referred to as variability, random version, or 'noise inside the device'. The heterogeneity within the human population results in exceedingly huge random variations in scientific trials. Systematic mistakes or bias refers to deviations that are not because of the threat alone.
Given data,
the mean value
Here, X = Σsum of all values/number of values
And, error = measured value - X
∴ error in the first result will be Δx = 15830 - 14,75
= + 1.08 g/cm³
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Disclaimer:- your question is incomplete, please see below for the complete question.
several groups of students used the same procedure to measure the density of a specific object. the 15 different results are listed below in units of g/cm3. at a 95% confidence interval, give an estimation of the amount of random error present in any single result of this procedure.
15.830
15.700
14.112
12.783
15.586
14.723
14.526
14.524
14.805
17.985
16.186
13.925
12.553
14.175
13.837
an electron is accelerated from rest by a potential difference of 320 v. it then enters a uniform magnetic field of magnitude 230 mt with its velocity perpendicular to the field. (a) calculate the speed of the electron.
Answer: 1.42 sec
Explanation:
The object is dropped from the height. So initial velocity, u = 0 m/s.
Height = 10m and Acceleration = g = 9.8 m/s² (or g can be approximated to 10 m/s²)
Using the Second equation of motion;
s = ut + (1/2) at²
~ 10 = 0 + (1/2) gt²
~ t² = 20/9.8 = 100/49
~ t = 10/7 seconds = 1.42 seconds
In a tennis serve, a 0.070 kg ball can be accelerated from rest to 35 m/s over a
distance of 0.80. Find the force exerted on the ball during the serve.
the springs of a 1800 kg car compress 4.6 mm when its 61 kg driver gets into the driver's seat.if the car goes over a bump, what will be the frequency of oscillations? ignore damping.
The frequency of oscillations is f = 7 Hz.
What is oscillation?Oscillations are the process of repeating fluctuations of a quantity or measure around its time equilibrium value. Oscillation can also be defined as the periodic fluctuation of matter between two values or about their average. Vibration is a predictable, repeated movement. A wave is a vibration going somewhere. There are three main types of vibration: free vibration, damped vibration and forced vibration. When an object vibrates at its own frequency, it is said to vibrate freely. Free vibration has a constant amplitude and period without any external force setting it up. An example is the vibration of a tuning fork.To learn more about oscillations from the given link :
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You work for the city recreation department, which is hosting a 5 kilometer run/walk next week. Your coworker measured the course and found that it is only 4. 75 kilometers long. He asks you to move the finish line forward 0. 25 kilometers. Your tape measure is marked in feet and inches. What is the distance he has asked you to move the finish line, to the nearest foot?.
Answer:
820 feet
Explanation:
.25 km = 820 feet
velocity and acceleration quick check 2 of 52 of 5 items question use the data table to answer the question. it shows the acceleration of a body when a net force is applied to it. net force (n) mass (kg) acceleration (m/s2) 5.0 5.0 1.0 10.0 5.0 2.0 20.0 5.0 which value would complete the last cell?
Answer:
N/A
Explanation:
Please word this better.
Answer:4.0
Explanation:
I got it wrong and it said this was the answer
Which two statements describe behaviors of particles that are related to the physical properties of the materials?.
A and C are the two assertions that define the actions of particles in relation to the physical characteristics of the materials.
Which one is a physical asset?A quality of matter that is unrelated to a change in its chemical makeup is called a physical property. Density, color, toughness, melting , boiling points, & electrical conductivity are common examples of physical qualities.
Why are physical characteristics significant?In order to observe and characterize matter, physical attributes are used. Physical characteristics of substances and systems are frequently referred to as extensive and intensive characteristics. This classification deals to how the attributes rely on how big or big the system or thing is.
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The correct question is :
Which TWO statements describe behaviors of particles that are related to the
physical properties of the materials?
A. They allow electrons to move freely between them.
B. They do not easily form bonds with atoms of other elements.
c. They change their positions relative to one another.
D. They combine with oxygen atoms to form a new substance.
antangonists function by?
Answer:7777
Explanation:
Answer:
Explanation:
An antagonist does the opposite of an agonist. It binds to receptors, and stops the receptor from producing a desired response.
suppose that instead of steel balls we use putty balls. they will collide inelastically and remain stuck together after the collision. how high will the balls rise after the collision?
The law of conservation of momentum and collision, after collision, the kinetic energy will become zero, and the balls rise after the collision is 15.4cm.
What is the law of conservation of momentum?
Momentum is neither created nor destroyed inside a problem domain, according to the principle of momentum conservation, but only modified by forces acting in accordance with Newton's equations of motion.
What is collision?
The abrupt, violent coming together in close proximity of two bodies, such as two billiard balls, a golf club and a ball, a hammer and a nail head, two railroad carriages when coupled, or a falling object and a floor Collision is also known as "impact."
The concepts used to solve this problem are conservation of energy and conservation of momentum.
Initially, use the conservation of energy to find the height that the other ball raises.
Finally, use the conservation of momentum before and after collision to find the height of the putty ball after collision.
The conservation of energy principle is stated as follows:
“Total energy of an isolated system under the action of only conservative forces remains constant.”
The saved energy in an object due to its position is called potential energy.
Explanation:
Momentum is conserved in inelastic collision. Total energy is equal to potential plus kinetic energy.
At equilibrium position, in total energy, the potential energy will become zero before collision.
After collision, the kinetic energy will become zero.
Therefore, after collision, the kinetic energy will become zero, and the balls rise after the collision is 15.4cm.
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light from an argon laser strikes a diffraction grating that has 5,735 lines per cm. the first-order principal maxima are separated by 0.5 m on a wall 1.76 m from the grating. what is the wavelength of the laser light in nm? enter an integer.
The wavelength of the laser light is 514nm.
The principal maxima are defined by
d sin∅ = mλ (m=0,1,2.3...)
For m = 1, λ = d sin Φ
The angle and first order (m=1) maxima are located here between the center (m=0),.
The information provided regarding the distance between maxima and the grating-to-screen distance can be used to calculate the value of:
Tan Ф = 0.5m/1.76 m = 0.284
Therefore, Ф = 15.8° and sin Ф = 0.273
The inverse of the number of grating lines per centimeter is used to determine how far apart grating "slits" are.
d = 1/5735cm⁻¹ = 1.88×10⁻⁴cm = 1.88×10³ nm
What is wavelength?
A waveform output that is carried in space or down a wire has a wavelength, which is the separation between two equal places (adjacent crests) in the consecutive cycles.
The wavelength is λ = d sinФ = (1.88 ×10³nm) (0.273) = 514nm
Therefore, the wavelength of the laser light is 514nm.
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The wavelength of the laser light is 514nm.
What is wavelength?
A waveform output that is carried in space or down a wire has a wavelength, which is the separation between two equal places (adjacent crests) in the consecutive cycles.
The principal maxima are defined by
d sin∅ = mλ (m=0,1,2.3...)
For m = 1, λ = d sin Φ
The angle and first order (m=1) maxima are located here between the center (m=0),.
The information provided regarding the distance between maxima and the grating-to-screen distance can be used to calculate the value of:
Tan Ф = 0.5m/1.76 m = 0.284
Therefore, Ф = 15.8° and sin Ф = 0.273
The inverse of the number of grating lines per centimeter is used to determine how far apart grating "slits" are.
d = 1/5735cm⁻¹ = 1.88×10⁻⁴cm = 1.88×10³ nm
The wavelength is λ = d sinФ = (1.88 ×10³nm) (0.273) = 514nm
Therefore, the wavelength of the laser light is 514nm.
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A recreational flyer does not need an airspace authorization in which type of airspace?.
A recreational flyer does not need an airspace authorization in uncontrolled airspace.
An airspace in which the Air Traffic Control service is not considered necessary is called uncontrolled airspace.
In general, an uncontrolled airspace remains at 400 or under 400 levels surpassing the ground.
Moreover, in an uncontrolled airspace the recreational flyer does not need any prior authorization and should also have particular knowledge about the airport traffic patterns
To put it simply, the remote pilots and flyers are not allowed to use landing and take off areas in an uncontrolled airspace.
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karen runs sets in basketball practice. she starts from a line, runs 2.0 m, returns to the line, runs 4.0 m, returns to the line, and runs 6.0 m. what is her distance and displacement?
The distance covered by karen is 18 meter and the displacement is 6 meters.
What is the difference between distance and displacement?
Distance : The path between any two points which is completely covered, length of such path is known as distance.
It is denoted by d.
There is no need of direction for calculating a distance.
It is a scalar quantity.
Displacement: the minimum path covered between any two points and is a direct length, such length is known as displacement.
It is denoted by s.
The direction is taken into consideration for calculating displacement.
It is a vector quantity.
As karen starts from a line, runs 2.0 m, returns to the line, runs 4.0 m, returns to the line, and runs 6.0 m. so her total distance = 2+2+4+4+6= 18 m
We added 2 and 4 two times because he started and returned to the same line.
Displacement= 6m as her final displacement – initial displacement= 6-0=6m
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if the front sprocket (driver) is rotating at 100 rpm: a) what is the angular speed of the back (driven) sprocket?
The calculated value is 240 rpm. The driving sprocket is the one fastened to the pedals or the engine crankshaft, and the driven sprocket is the one fastened to the back wheel.
Omega is the symbol for angular speed, the angle of rotation is stated in radians, and the time required to complete the rotation is t. Sprocket ratio equals T1/T2.
The sprocket ratio is 20/80
= 1/4
= 1:4, or simply 4,
if the front and rear sprockets on a bicycle each have 20 teeth.
Ratio of the sprockets is T1/T2 = V1/V2.
When the driving sprocket is turned at 60 revolutions per minute, the rear wheel and sprocket spin at:
V2 = 240 rpm;
1/4 = 60/V2 rpm.
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question 27 a student slides her 80.0-kg desk across the level floor of her dormitory room a distance 4.00 m at constant speed. if the coefficient of kinetic friction between the desk and the floor is 0.400, how much work did she do?
The work done by the student in moving the desk of mass 80 kg is 1,216J
The mass of the desk = 80 kg
The distance of the desk moved by the student = 4 meter
The coefficient of kinetic friction = 0.4
The work done by the student can be found using the formula,
W = F x d
where W is the work done by the student
F is the frictional force
d is the distance moved
Let us find the frictional force first
F = μmg cosθ
where μ is the coefficient of friction
m is the mass of the object
F = 0.4 x 80 x 9.8 x cos 0
= 304 N
Then, the work done is
W = 304 x 4
= 1,216 J
Therefore, the work done is 1,216 J
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a beam of electrons is fired into a region of uniform magnetic field with a speed of 89200 m/s. what uniform magnetic field strength, applied perpendicular to the direction of the beam, will deflect the beam into a circular arc with radius of 3.23 mm?
The strength of the magnetic field required, applied perpendicular to the direction of the beam, that will deflect the beam of electrons into a circular arc with radius of 3.23 mm is 0.157 x 10^-3 T.
Explain the motion of electrons in a uniform magnetic field.
Because magnetic force is always perpendicular to velocity, the charged particle is not affected by it. The kinetic energy and speed of the particle stay unchanged as a result. Motion's speed is unaffected, only its direction. Uniform circular motion frequently looks like this. The most straightforward scenario is when a charged particle moves perpendicular to a constant B-field. (If this happens in a vacuum, the magnetic field is what mostly controls the motion.) Here, the centripetal force is provided by the magnetic force (Lorentz force).
Cyclotron resonance is the word used to describe a particle moving in a circular pattern as a result of a constant magnetic field.
Equating the centripetal force and magnetic force we get,
r= mv/qB
we find
B= mv/er
where m is the mass of electrons
e is the charge of electrons
B = (9.11×10 ^−31 kg)(89200 m/s)/ (1.60×10 ^−19 C)( 3.23 x 10^-3 m)
= 157239.164 x 10^-9
= 0.157 x 10^-3 T
Hence, the strength of the magnetic field required to deflect the beam of electrons is 0.157 x 10^-3 T
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4.) A car with mass 1352 kg is being towed across the parking lot by a tow truck using a horizontal cable with a force of 7820 N. The coefficient of kinetic friction between the car tires and pavement is 0.56. Determine whether a net force is acting on the car and if so, at what rate is the car accelerating across the parking lot?
From the calculation, there is a net force that acts on the car and then the acceleration that is produced by the net force is 0.296 m/s^2.
What is the net force?The term net force refers to the force that is acting on an object that makes it to move. We have to recall that the force of friction is the force the limits the motion of an object. In other words, it is the force of friction that makes a body not to be able to move and this must be overcome by the forward force when it is greater than the friction force.
Now;
Mass of the car = 1352 kg
Forward force = 7820 N
Coefficient of friction = 0.56
Frictional force = μmg
= 0.56 * 1352 kg * 9.8 m/s^2
= 7419.8 N
Net force = Forward force - Frictional force
= 7820 N - 7419.8 N
= 400.2 N
Then;
Net force = ma
m = mass
a = acceleration
a = Net force/m
a = 400.2 N/ 1352 kg
a = 0.296 m/s^2
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A 1,100 kg car is traveling at 20 m/s as it begins going down a 40 m hill. What is its total mechanical energy?.
The calculated energy is 200000 J. An item in motion has energy, which is called kinetic energy.
Motion in space you walk down the street, and the rotation of the planet around the sun are all examples of kinetic energy. is inversely proportional to the square of the object's velocity and its mass: K.E. = 1/2 m v2. Motion is created by kinetic energy. Any moving item uses kinetic energy, such as a person walking, a baseball being thrown, a piece of food falling from a table, or a charged particle in an electric field.
Energy Kinetic =.5 (m.v.v)
In this issue,
mass (m) = 1000 kg
The speed is 20 m/s.
So,
0.5 (1000 20 20 20) = 200000 J is the total kinetic energy.
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A driver is going 25 m/s down the road when they spot a deer jump out in front of them. It takes them 0.75 seconds to react and apply the brakes. The brakes provide an acceleration of -8 m/s/s. How far do they travel before coming to a stop from the moment they saw the deer? (round your answer to the nearest whole meter)
They travel 16.5 m distance before coming to a stop from the moment they saw the deer.
Distance measures the length between objects or points without regard for direction. Distance is a scalar quantity.
We can define it as to how much ground an object has covered despite its starting or ending point.
Velocity = 25 m/s
Time = 0.75 sec
acceleration (a) = -8 m/s^2
As we know the distance formula,
s = ut + 1/2 at^2
=25×0.75 + 1/2 × (-8)×0.75×0.75
=18.75 - 2.25
=16.5
Hence, total distance travel by them is 16.5 m.
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a ball is thrown upward with a speed of 50 ft/s from the edge of a cliff that is 2100 ft above the ground. at what time t does the ball hit the ground? (recall that acceleration due to gravity is 32 ft/s2. round your answer to two decimal places or enter an exact answer.)
The time t the ball hit the ground is 11.3494 Sec.
Acceleration is the rate of change of the velocity of an item with appreciation to time. Accelerations are vector portions. The orientation of an item's acceleration is given by the orientation of the net pressure appearing on that object.
Calculation:-
S = ut + 1/2 at²
2100 = 50t + 0.5 × 32 t²
16 t² + 50t - 2100 = 0
T = 11.3494 Sec
Acceleration is the charge at which velocity modifications with time, in terms of each speed and route. A factor or an object moving in a straight line is accelerated if it quickens or slows down. movement on a circle is extended despite the fact that the rate is consistent because the course is continually changing.
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A satellite with a mass of 718 kg is placed at an altitude of 1342
km above the surface of Triton. What is the strength of the
gravitational force on the satellite?
646 N is the strength of the gravitational force on the satellite
F=GmM/r²
satellite mass= 718 kg
mass of triton=1.35x10*23 kg
r= 352500m
F=GmM/r²
F=6.67×10^-11×718 kg×1.35x10*23 kg ÷(352500m)²
F=646 N
The gravitational subject has course, much as other electromagnetic fields just like the electric powered and magnetic fields. it's far a vector subject as a end result. The gravitational discipline power, which has the unit Newtons consistent with kilogram, is used to degree the gravitational discipline. This area force has a endless range and is constantly attracting.
The electromagnetic area, or the electrical and magnetic fields for charged debris and magnets, is comparable to the gravitational discipline. due to the fact electromagnetic discipline forces are stronger than gravitational field forces, they take priority over them.
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How can gas density be used to explain why hydrogen rises in air and carbon dioxide sinks?
Answer:
Explanation: The density of gas differentiates all the varieties of gas present in the atmosphere.
HYDROGEN- it is a lighter gas having a lesser density.
For example, a hydrogen balloon displaces the air around it thus making it rise.
CARBON DIOXIDE: It is a denser gas as it makes the balloon heavier than the air pressure around it thus making it sink.
I hope the explanation was helpful. :)
the vibration packages dropped from a height of h meters can be approximated by considering fig.2 and modeling the point of contact as an impulse applied to the system at the time of contact. calculate the vibration of the mass m after the system falls and hits the ground. assume that the system is underdamped.
The vibration of a package dropped from the top of h meters may be approximated by thinking about figure P3.10 and modeling the factor of touch as an impulse.
Vibration is a mechanical phenomenon whereby oscillations arise about an equilibrium factor. The word comes from the Latin vibration. The oscillations can be periodic, along with the movement of a pendulum or random, such as the movement of a tire on a gravel street.
Vibration is a speedy back-and-forth motion of a frame approximately a vital function. The amplitude of an oscillation is the maximum displacement of the bob from its mean role at some point of oscillation. Ultrasonic waves are sound frequencies above 20,000 Hz, which human beings can't listen to those waves.
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why does one part of the earth experince summmer while another part experince winter
Answer:
''The combination of Earth's tilted axis and its revolution causes the atmosphere to be unequally heated by the sun.'' - jordanmiya23
Explanation:
this has been answered before
calculate the minimum number of 15-ampere lighting branch circuits required in a residence of 1,850 square feet.
4 number of 15-ampere lighting branch circuits required in a residence of 1,850 square feet.
since we are provided with 15-ampere branch circuits, and the measurement for the residence is 1850 square feet .So first,
=>3 volt ampere x 1,850 /120 volts
=> 5,550 volt-amperes/120 volts
=> 46.25 amperes
Now we will divide the above value by the number of branch circuits
=>46.25/15 amperes = 3.08 = 4
So almost 4 branches are required for the given feet of a residence
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in order for the earth to be at rest in the center of the system of the sun, planets, and planets, and comets, there is required both universal gravity and another force in addiction that acts on all bodies equally meaning
In order for the earth to be at rest in the center of the system of the sun, planets, and planets, and comets, there is required both universal gravity and another force in addiction that acts on all bodies equally meaning Gravitational force.
Newton's law of universal gravitation states that every object attracts every other object with a force.
That is exactly the form of the gravitational force, with the generic gravitational regular G as the regular of proportionality. consequently, Newton's legal guidelines of motion, with a gravitational force used within the second regulation, imply Kepler's legal guidelines, and the planets obey the equal laws of movement as objects at the surface of the Earth.
The pressure of gravity, or gravitational force, pulls items with mass in the direction of each other. We often consider the force of gravity from Earth. This pressure is what keeps your frame on the floor. however, any object with mass exerts a gravitational force on all different items with mass.
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based on the results of the curve fit, what is the relationship between the magnetic field strength and the distance from the magnet?
The sphere energy decreases as the distance from the source increases.
A magnetic field is a vector subject that describes the magnetic effect on transferring electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field story a force perpendicular to its very own pace and to the magnetic discipline.
The magnetic area is a area around a magnetic cloth or a moving electric powered rate inside which the pressure of magnetism acts. A magnetic subject is a force discipline that is created via transferring electric prices and magnetic dipoles and exerts a pressure on different close by shifting prices and magnetic dipoles.
Magnetic fild, a vector area of a magnet, electric current, or converting electric discipline, wherein magnetic forces are observable.
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a student lifts a weight of 10.0 n a distance of 0.5 meters. if this exercise is repeated 50 times in 100 seconds, then the power of this exercise is: a. 2.5 watts. b. 3.1 watts. c. 3.6 watts. d. 4.0 watts. e. 4.8 watts.
The option E is correct. 4.8 watts, The quantity of energy moved or converted per unit of time is known as power in physics. The watt, or one joule per second, is the unit of power in the International System of Units.
Power is also referred to as activity in ancient writings. A scalar quantity is power. Power is an expression of energy expended through time (effort), of which force is an element, as opposed to force itself, which is the fundamental outcome of an interaction between two objects. Power can be measured and described, but a force is a real physical entity, but power is not. W = mgh
=10*9.8* 0.5
=49 newton
P= W/T
=49/ 100
=4.8 watts
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