Answer:
potential difference
= m × g × h
= ( 2 × 10 × 3 )
= 60 Joules
Answer:
PE = 60 J
Explanation:
Where:
PEg or PE = gravitational potential energy
m = mass of an object
g = acceleration due to gravity
h = height of the object
brnaliest
The force between 2 pith balls
Answer:
charged pith ball works well to show the Coulomb force between two charged objects. If a glass rod is rubbed with silk, the silk rubs some electrons off the rod. The rod thus becomes positively charged. ... Since like charges repel, the pith balls repel one another.
Explanation:
Vector A points along the + y axis and a magnitude of 100.0 units. Vector B points at an angle of 60.0 degrees above the +x axis and has a magnitude of 200.0 units. Vector C points along the +x axis and has a magnitude of 150.0 units. Which vector has (a ) the largest x component and (b) the largest y component ?
Answer:
vector quantities are resolved into their component form (along the x and y-axis) before adding them. Let us assume that two vectors are
→
a
=
x
1
^
i
+
y
1
^
j
and
→
b
=
x
2
^
i
+
y
2
^
j
, we can find the sum of two vectors as follows.
→
a
+
→
b
=
x
1
^
i
+
y
1
^
j
+
x
2
^
i
+
y
2
^
j
=
(
x
1
+
x
2
)
^
i
+
(
y
1
+
y
2
)
^
j
The direction of the sum of the vectors (with positive x-axis) is,
θ
=
tan
−
1
(
y
1
+
y
2
x
1
+
x
2
)
Out of all the largest x component is of Vector C of value 150i and Vector B will have highest y component of value 173j
What is vector ?Vectors are objects which have both, magnitude and direction. Magnitude defines the size of the vector. It is represented by a line with an arrow, where the length of the line is the magnitude of the vector and the arrow shows the direction.
Vector A = direction is in y direction = 100j
Since , this vector is only in y direction and have no component in x direction , so its x component will be = 0i
Vector B = direction is at angle of 60.0 degrees above the +x axis
Resolving into x and y components
x component = Vector B*cos(60) = Vector B * (1/2) = Vector B /2 = 200 /2
= 100i
y component = Vector B * sin(60) = Vector B * [tex]\sqrt{3}[/tex]/2 = 173j
Vector C = direction is along the +x axis
hence , it will not have any y component
x component = 150i
y component = 0j
Out of all the largest x component is of Vector C of value 150i and Vector B will have highest y component of value 173j
To learn more about vector here
https://brainly.com/question/13322477?referrer=searchResults
#SPJ2
Frosted glass is an example of which type of material?
Multiple choice question.
A)
transparent
B)
translucent
C)
opaque
D)
radiant
Answer:
B)
translucent
Hope this helps♡♡♡
The energy of an electromagnetic wave is related to its amplitude.
True false question.
True
False
help
Answer:
True
Explanation:
If amplitudes are equal, high frequency waves carry more energy than low frequency waves.
The galaxy NGC 4414 is moving away from us at 7.16x105 m/s. By how much will the frequency of the 6.91x1014 Hz hydrogen line be shifted in the galaxy's spectrum?
The shift in the frequency of hydrogen line is 1.65 x 10¹² Hz.
Relationship between frequency and speed of waveThe relationship between frequency and speed of wave is given in the following formula;
v = fλ
Ratio of speed of speed of galaxy to speed of light[tex]\frac{c}{c_o} = \frac{71.6 \times 10^5}{3 \times 10^8} = 0.00239[/tex]
Shift in the frequency of hydrogen lineThe shift in the frequency of hydrogen line is calculated as follows;
[tex]0.00239 \times 6.91 \times 10^{14} = 1.65 \times 10^{12} \ Hz[/tex]
Learn more about speed and frequency of waves here: https://brainly.com/question/19638389
If this charged soot particle is now isolated (that is, removed from the electric field described in the previous part), what will be the magnitude E of the electric field due to the particle at distance 1.00 meter from the particle?
The magnitude of the electric field due to the particle at the given distance is [tex]9\times 10^9 q[/tex].
Electric field strengthThe electric field strength of a charged particle is the force per unit charge in the given field.
The electric field strength of a charge is given as;
[tex]E = \frac{F}{q} \\\\E = \frac{kq}{r^2}[/tex]
where;
k is Coulomb's constantq is the charger is the distance[tex]E = \frac{9\times 10^9 \times q}{1^2} \\\\E = 9\times 10^9 q[/tex]
Thus, the magnitude of the electric field due to the particle at the given distance is [tex]9\times 10^9 q[/tex].
Learn more about electric field here: https://brainly.com/question/14372859
a rock with a mass of 10.0 kg is balanced on top of a large boulder. describe the forces acting on the rock, and use the concept of forces to explain why it stays on top the boulder.
Explanation:
The forces acting on the rock include Normal Force, Gravitational force & Friction force
It's possible for it to stay on the boulder because the normal force balances it's weight. also because static friction acts on the boulder up to it's limiting friction even if it were on an attempt to move as a result of air resistance. gravitational forces act upon it by mainly affecting it it's weight. as altitude increases, it's weight decreases since gravity varies from a height to another.
What is the displacement of a train as it is accelerated uniformly from 11 m/s to 33 m/s in a 20 seconds time interval
The displacement of this train is equal to 2.2 meters.
Given the following data:
Initial velocity = 11 m/s.Final velocity = 33 m/s.Time 20 seconds.To determine the displacement of a train:
How to calculate displacement.Mathematically, the displacement of an object is given by this formula:
[tex]d = \frac{V\;+\;U}{t}[/tex]
Where:
V is the final velocity.U is the initial velocity.t is the time.Substituting the given parameters into the formula, we have;
[tex]d = \frac{33\;+\;11}{20}\\\\d = \frac{44}{20}[/tex]
d = 2.2 meters.
Read more on displacement here: brainly.com/question/24728358
Two objects collide and stick together. Kinetic energy
Answer:
its inertia.
Inertia is the tendency of an object to continue in the state of rest or of uniform motion
What’s the power if a student does 2240j of work for 2.8 seconds
Answer:
800 Watts
Explanation:
Power = Work/time
Working in SI units, Power = Watts, Work = Joules, Time = seconds.
Power = 2240J/2.8s = 800 Watts.
You are a passenger in a car, holding a cup of water in one hand. The driver is
forced to stop suddenly, causing the water in your cup to spill out in front of
you. The water likely spilled because:
A. every force is balanced by an opposing force.
B. an object in motion tends to stay in motion.
C. rapid changes in direction cause deceleration,
D. a force is exerted by a change in acceleration.
Answer:
the answer is b because an object in motion stays in motion
The water likely spilled because of inertia of motion such that an object in motion tends to stay in motion. So, option B is correct.
What is meant by inertia ?Inertia is defined as the property of matter by which it tends to continue its state of rest or uniform motion.
Here,
When you are travelling in a car, holding a cup of water in one hand and the driver of the car is forced to stop suddenly so that the water in the cup gets spilled out.
When the car was moving, the water in the cup was actually at the same speed relative to the car and cup. When the car is tend to stop suddenly, this causes a sudden change in acceleration of the car and thus the cup. As a result, the water in the cup spills out. This is due to the property of inertia that the water got spilled out.
According to the law of inertia, a body will preserve its state of rest or uniform motion unless an external force acts on it.
Here, the spilling out of water is the application of inertia of motion. That means the the water inside the cup which was moving forward and when the change in acceleration occurred, it got spilled in front of you thus tending to continue its state of motion.
Hence,
The water likely spilled because of inertia of motion such that an object in motion tends to stay in motion.
To learn more about inertia, click:
https://brainly.com/question/769460
#SPJ7
A Hunter points his gun at a squirrel on a branch of a tree away from him. Assume he lies on the ground and that the moment he fires his gun the squirrel drops off the branch. Show that the squirrel should not have dropped if it was to avoid being shot.(neglect air resistance).
Answer:
well if it wasn't shot then it shouldn't have been affected
Explanation:
What is the answer please help
Answer:
I think c
Explanation:
cold air pushes warm air up and then the air mixes(im not sure)
Calculate the magnitude of force, is the vertica Component of force is 10N and its horizontal apre to 60º.
A 200-W light bulb is connected across a 110-V dc power supply. What current will flow through this bulb
Answer:
it should be 1.8
Question 10.
Mass (M), acceleration (a) and force (F) are related by the equation
F=ma
Re-arrange this equation so as to make the acceleration a the subject, i.e.
a= ??
Answer:
[tex]a=\frac{F}{m}[/tex]
Explanation:
Just divide mass from both sides
Help! Looking for the answers to this question!
The figure below shows three edge views of a square loop with sides of length ℓ = 0.240 m in a magnetic field of magnitude 1.25 T. Calculate the magnetic flux (in Wb) through the loop oriented perpendicular to the magnetic field, 60.0° from the magnetic field, and parallel to the magnetic field.
(a) perpendicular to the magnetic field? _____Wb
(b) 60.0° from the magnetic field? ____Wb
(c) parallel to the magnetic field? _____Wb
Answer:
0.072, 0.062, 0
Explanation:
Flux = magnetic field B * area A * cos(angle between B and normal of A)
= 1.25 * 0.24^2 * cos(angle) = 0.072 * cos(angle)
a) angle = 0°, flux = 0.072 Wb
b) angle = 30°, flux = 0.072*cos(30) = 0.062 Wb.
c) angle = 90°, flux = 0
A circular coin of radius R and mass M is placed so that it touches a step of length R as shown in figure. The minimum value of the horizontal force F required to pull the coin over the step Is?
When the force is applied normal to the circumference at point P, then it's zero.
What is a force?It should be noted that force simply means an influence that can change the position of an object.
In this case, when the force is applied normal to the circumference at point P, then it's zero.
Also, if the force is applied normal to the circumference at point X, then it's constant.
Learn more about force on:
https://brainly.com/question/25239010
The amount of energy needed to change 25 g of −30°C ice into 0°C liquid water is __________.
A. 9,887.5 J
B. 1,537.5 J
C. 58,037.5 J
D. 8,350 J
The amount of energy needed to change 25 g of −30°C ice into 0°C liquid water is 8350 J.
Amount of heat requiredThe amount of heat required to change 25 g of −30°C ice into 0°C liquid water is calculated as follows;
Q = mLf
where;
m is mass of the iceLf is latent heat of fusionQ = 25 x 334
Q = 8350
Thus, the amount of energy needed to change 25 g of −30°C ice into 0°C liquid water is 8350 J.
Learn more about heat to melt ice here: https://brainly.com/question/20343609
Answer:
The amount of energy needed to change 25 g of −30°C ice into 0°C liquid water is 9,887.5 J.
Anyone no how to do number 5
A system releases 124 kJ of heat while 114 kJ of work is done on the system. Calculate the change in internal energy (in kJ).
Answer:
10kj should be the answer so I think
If each pull-up requires 300 J and Dan does a pull-up in 1.5 seconds, what is his power? 1000 watts 800 watts 400 watts 200 watts
The Surface Pressure at Leh, Ladakh is 800 mb. Now, assuming that Leh is at an altitude of 3500 m and every 100 m increase in height with respect to sea level corresponds to 10 mb pressure, What is the Sea Level Pressure at Leh
We have that the sea level pressure for Leh area is 1150mb mathematically given as
Ps= 1150 mb
Sea level pressureQuestion Parameters:
Ladakh is 800 mb.
assuming that Leh is at an altitude of 3500 m and every 100 m
increase in height with respect to sea level corresponds to 10 mb pressure,
Generally, for 3500m the pressure change will be 350 mb.
Therefore, here for the sea level pressure we need to add,
Ps=800+350
Ps= 1150 mb
For more information on Pressure visit
https://brainly.com/question/25688500
A ball falling from a great height will reach terminal speed when ____.
Answer:
you can view my profile and go to questions and answer the recent questions i posted
Explanation:
What is the magnitude of the electric field strength at a position that is 1.2 m from a point charge of 4.2 x10^-6 C
This is the correct answer
The magnitude of the electric field strength at that position is 2.6×10⁴ Newton/Coulomb.
What is electric field?An electric field is a physical field that surrounds electrically charged particles and acts as an attractor or repellent to all other charged particles in the vicinity. It can also refer to a system of charged particles' physical field. Electric charges and time-varying electric currents are the building blocks of electric fields.
Given parameters:
Charge of the point charge: Q = 4.2 × 10⁻⁶ Coulomb.
Distance of the position from the position: r = 1.2 meter.
The magnitude of the electric field strength at that position = kQ/r²
= 9 × 10⁹ × 4.2×10⁻⁶/(1.2)² Newton/coulomb.
= 2.6×10⁴ Newton/Coulomb.
Hence, the magnitude of the electric field strength at that position is 2.6×10⁴ Newton/Coulomb.
Learn more about electric fields here:
https://brainly.com/question/15800304
#SPJ2
What would happen if we
decreased the WIDTH of
these wires?
A. The resistance would stay the same.
B. The resistance would increase.
C. The resistance would decrease.
Answer:
i think the correct answer is (a)
1-Light carries energy in the form of ______energy?
helpp
Answer:
electromagnetic radiation
Hope this helps :)
Type the name or address of your current location in the address field and select the location provided. Write the exact latitude and longitude coordinates (degrees, minutes, and seconds) that are provided in the answer space. How do these coordinates compare to your estimate from part C?
The coordinates should be written in the following format:
Lat: N 33°34’ 40”
Lon: W 99°29’ 31”
My location coordinates are Lat: N 38.89'76", Lon: W: -77.03'66"
What are geographic coordinates?Geographic coordinates are a term to refer to the terrestrial reference system that allows a location to be specified by means of a series of numbers, letters or symbols.
The basic and best known geographic coordinate system worldwide specifies the following data:
North or South latitude, degrees, minutes and seconds.East and west longitude, degrees, minutes and seconds.To establish the geographical location of a point, the imaginary Greenwich meridian reference lines (longitude) and the equator line (latitude) must be taken into account.
Learn more about geographic coordinates in: https://brainly.com/question/10760270
Which of the following is an example of a SOLUTION?
Milk
Italian Salad Dressing
Orange Juice with Pulp
Salt Water
Answer:
Salt water
Explanation:
This is the answer
Please help me out with this.
True or False?
You are helping a friend push a couch across their living room floor.
Gravity is a field force acting downward on the couch.
Friction from the carpeted floor is a contact force acting against your push.
We have that Gravity a force acting down ward against any object and frictional force is a force acting a against movement, Hence
TrueTrueGravity and frictional forceGenerally, Gravity a force acting down ward against any object on earth at an acceleration of about 9.8m/s
and frictional force is a force acting a against the movement based on contact with another surface
Therefore
Gravity is a field force acting downward on the couch:
This is True
Friction from the carpeted floor is a contact force acting against your push.
This is True
For more information on Force visit
https://brainly.com/question/26115859