Can someone help with this question

Sam and Beth are separated by 500 miles. If Beth leaves her home at 1pm and travels at 60mph, If you add T=8 hours 20 minutes to 1 pm, then get 9:20 pm.

The approach taken by such a body to go across a specified distance in a predetermined amount of time at a specific speed is known as the distance traveled. Distance is equal to time times velocity if the speed is constant. d = v*t.

The act of traveling: passage, voyage, or a journey, particularly to a far-off or unfamiliar location. frequently used in plural. An narrative of one's travels, in the plural. An object is thought to have comfort . when it returns to its origin.

Distance = 500 miles

Rate = 60 mph

Distance = rate * time

Time = Distance/rate

Time = 500 miles / 60 mph

Time = 8 hours 20 minutes

Total time = 9:20 pm

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Equation states that the cheetah has nine times the kinetic energy of a human run.

There are many distinct types of energy, including gravitational, thermal, radiant, chemical, nuclear, electrical, motion, sound, & elastic energy.

Considering that,

the runner's weight, m₁ = 60 kg

runner's speed, v₁ = 11 m/s

Mass of cheetah, m₂ = 60 kg

Speed of cheetah, v₂ = 33 m/s

energy expended by the runner

Er=1/2m₁v₁²

  =1/2*60*11²

  =3630

Cheetah kinetic energy,

 Ec=1/2m²v²2

    =1/2*60*33²

    =32670

It is evident from equations (1) and (2) that

Ec=9*Er

The cheetah therefore has nine times the kinetic energy of a human runner. Consequently, this is the necessary remedy.

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The complete question is-

A 60 kg runner in a sprint moves at 11 m/s. A 60 kg cheetah in a sprint moves at 33 m/s. By what factor does the kinetic energy of the cheetah exceed that of the human runner?

Answer:

51,834.1 Newtons.

Explanation:

To find the force required to accelerate an object, you can use the formula force = mass x acceleration. In this case, the force required to accelerate a 15 passenger van weighing 1955 kg at a rate of 26.82 m/s^2 would be 51,834.1 Newtons.

The Maximum Kinetic energy of the photoelectrons is 3.84 x 10⁻¹⁹J.

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The amplitude of sound refers to the sound’s volume or loudness.

A sound wave's amplitude measures the height of the wave. When a sound is made, the maximum displacement of the medium's vibrating particles from their mean position determines the amplitude of the sound wave. It is the separation between the wave's crest or trough and its mean location.

The relationship between loudness and sound amplitude is straightforward. A sound wave's amplitude determines how loud it will be; the larger the amplitude, the louder the sound. The sound will be weak if the amplitude is minimal.

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For finding angular velocity, we need angular displacement Ф or angular acceleration α. In this question, the information provided is only time elapsed. So, with a given input, angular velocity can't be calculated.

Angular velocity is a measure of rotational rate. This gives how fast an object is moving about an axis. It is represented by the symbol ω (omega). It is a measure of angular displacement per unit of time.

Angular velocity = Angular displacement/time

ω = Ф /t

Angular displacement is the angle made during rotation per unit of time. Angle is measured in radians.

There is a relation between angular velocity and linear velocity.

v = r. ω

means. linear velocity = radius × angular velocity

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A series of smaller spots are spaced out on either side of the pattern's central, larger spot.

When compared to other gas lasers, helium xenon lasers are inexpensive and straightforward to operate. They have a long history of employment in numerous industries, including holography, biomedical engineering, metrology, spectrometry, optical disc reading, barcode scanning, and microscopy.

By energizing Neon molecules in the atmosphere, a He-Ne laser produces light. The Neon particles decay from a higher energy state to that of an ordinary state, producing the 632.8 nm optic light that the laser emits. For the given basic research, a comprehensive determination of quantum (state) is not necessary.

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The solution indicates that the rope's tension is 200 N this is because of  the static equilibrium.

Dynamic equilibrium is a state in which bodies are moving at a constant speed, as opposed to static equilibrium, which is a state in which bodies are at rest (rectilinear motion). The total amount of forces acting on them is 0 in both situations.

the total of all external forces that affect the body, where m is its mass and is the linear acceleration of its centre of mass   The constant acceleration is zero when everything is in balance.

F is the force with which Joe pulls (200 N)

F′ is the force with which Bill holds on to the rope

T is the tension of the rope to the right

T′ is the tension of the rope to the left

The system created by Joe, the rope, as well as Bill is said to be in static equilibrium if it does not move, in which case both velocity of the object are zero.

Let's say we cut the rope in an idealized manner to demonstrate the tensions and internal forces.

Applying the idea of the horizontal forces' sum being equal to zero, which is the first requirement of static equilibrium with respect to the X-axis.

∑Fx = 0

T - F = 0

T = F

= 200 N

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The tension in the rope that has a box of 50 kg tied to it is 540 N.

Tension is described as the pulling force transmitted axially by the means of a string, a rope, chain, or similar object.

To calculate the tension in the rope, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence the tension is 540 N.

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Answer:

294 Joules

Explanation:

Use the Potential Energy Formula and plug in the numbers to be 2kg(mass)*15 meters (height above ground)* 9.8(gravitational acceleration of the earth) = 294 Joules

Answer:

same,

my advise is you add more points it will make everyone anwser quicker.

The moment of the force of 50 N is 0.375 Nm.

Moment of a force is the product of force and the perpendicular distance.

To caluclate the moment of the force, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the moment of the force is 0.375 Nm.

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The path difference for destructive interference is 2n/x.

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The moves your car forward is the effect of static friction. The power needed to move the tires, which would in turn pushes the vehicle backward against the road, comes from the engine.

Force is the term used to describe a body's tendency to alter or alter its state as a result of an external cause. When force is applied, the body could also alter its size, shape, and direction. hitting a football, pushing and pulling on the door, or kneading dough are a few examples.

A push in pull that an object experiences as a result of interacting with another item is known as a force. Every time two items interact, a force is exerted on all of the materials. The force is no longer felt by the two surfaces when the interaction ends.

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When a model drag car is accelerated along its track from rest by a motor with a force, then the kinetic energy after 3 m is calculated to be equal to : 90 J.

Kinetic energy is defined as the work done that is required to move a body from the rest position to a specific velocity.

Given , truck is accelerated from the rest with force = F₁ = 90 N

Drag force, F₂ = 30 N

Distance, D = 3 m

As, Work done = Force x Distance

W = F x D

So, W = ( F₁ - F₂) x D

= ( 90 - 30) x 2

W = 120 J

Therefore, the kinetic energy is 120 J.

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Interstellar hydrogen atoms emit cold, neutral electromagnetic radiation with a wavelength of 21 centimeters.

Radio transmissions, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays are only a few examples of electromagnetic radiation. The lowest energy, frequency, and wavelength are found in radio waves. The strongest, most prevalent, and short-wavelength photons are gamma rays.

Powerful electromagnet A straightforward electromagnet was created by students as part of a project using common components. By wrapping a wire around an iron nail and passing current through it, electromagnets can be created. The magnetic field is produced around the nails by the electric field in the wire coil.

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A magnetic field is created in a conductor when current is flowing through it. Free electrons' magnetic fields add up as they flow inside a single direction.

Molecules or atoms lacking in electrons, which are frequently used as carriers of electric charges, move as current. Currently is frequently represented with the capital letter I. The standard component is the ampere, which is represented by the letter A.

Current flow (DC) and alternating current (AC) are the two types of current used in electricity (AC). Electrons pass only in the direction of direct current. Direct current is produced by batteries. Electrons move both in directions during alternating current. Electric current produced by power plants is AC.

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Answer:

Below

Explanation:

Basic equation

V = IR

 solve for I

V / R = I

240 / 12 = 20 amps

a. The spring constant of the spring be 40 N/m.

b. To stretch it by 1.5 m, required force be 60 N.

In accordance with Hooke's law, a principle of elasticity, for relatively minor deformations of an object, the displacement or size of the deformation is directly proportional to the deforming force or load When the load is removed under these circumstances, the object resumes its original size and shape.

According to Hooke's rule, solids behave elastically when their constituent molecules, atoms, or ions move slightly from their normal places. This movement is proportional to the force that caused it.

a. The spring constant of the spring be: k = 20 N/0.5m = 40 N/m.

b. To stretch it by 1.5 m,  required force = 40×1.5 N = 60 N.

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Answer: 4.217 x 10^5 km

The force depicted by the leftward arrow will be the force of friction.

Friction is a force that opposes relative motion between surfaces in contact.

If two surfaces are in contact and moving relative to one another, then the friction between them is called kinetic friction. When objects are stationary, static friction can act between them; the static friction is usually greater than the kinetic friction between the surfaces.

When a book is pushed to the right across a desk at constant speed, the force of friction will act in the opposite direction to try and stop the opposition of the motion of the book.

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A sloped line on a distance-time graph denotes motion of the item. In a graph of a distance versus time, the line's gradient or slope equals the object's speed. The steeper the line, the faster the thing moves (and the greater the gradient).

If an object's speed changes, it will either be accelerating or decelerating. On a distance-time graph, this can be represented as a curved line. if an object is speeding up or slowing down.

The distance-time graph is a straight line when a body's motion is uniform. The speed of the body is equal to the slope of the distance-time graph.

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A. To drive the car on level ground, the engine needs to produce 11,500W of power.

b. The car's engine must provide 17,084W in power in order to move the vehicle up a hill with a 2.0 grade.

Speed is indeed an illustration of an amphetamine. Substantial amounts of dopamine are produced by this central nervous system stimulation. A chemical in the brain associated with reward and pleasure is called dopamine. There are numerous types of amphetamines.

(a).The two forces at action are the drag force, D, which pushes the car backward, as well as the driving force, F, which pushes it vehicle forward. Since there can be no net force,

F-D=0

We know that D=500 N, so

F=D

F=500N

The force produced by the engine (F) and the vehicle's speed (v=23 m/s) are multiplied to produce the power used by the engine, so:

P=Fv

=(500N) (23m/s)

=11,500W

(b).the component of the weight of the car parallel to the slope, which acts against the motion of the car. Its magnitude is given by:

Wₓ=(mg)sin

=(710kg)(9.8m/s²)(sin2.0°)

=242.8N

F-D-Wx=0

F=D+Wx

=500N+242.8N

=248.8N

Consequently, this time the engine's power output

P=Fv

=(742.8N)(23m/s)

=17,084W

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The complete question is-

A 710 kg car drives at a constant speed of 23 m/s . it is subject to a drag force of 500 n. what power is required from the car's engine to drive the car (a) on level ground? (b) up a hill with a slope of 2.0 ∘ ?

Plants transform, through the process of photosynthesis, carbon dioxide, with water and sunlight, into organic and inorganic matter.

Photosynthesis has been a chemical reaction carried out by plants and through which they obtain their own food.

This chemical reaction translates as:

Carbon Dioxide + Water + Light ⇒ Glucose + Oxygen

In this sense, let us note that with photosynthesis, organic matter, which is glucose, and inorganic matter, which is oxygen, are obtained in the products.

kinetic energy is (m·s²)/2

m = mass

s = speed

so,

500 = (30 x s^2 )/2

1000 = 30 x s^2

100/3 = s^2

s = [tex]\frac{10\sqrt{3} }{3}[/tex]

Volume occupied by hydrogen gas is ≅ 2.0 × 10⁵ m³.

What is an ideal gas law?

An equation of state that characterizes perfect gases is called the ideal gas law. When explaining how gases will behave under ideal circumstances, this equation of state, which links a gas's pressure, volume, temperature, and mass, is highly helpful. For gases, this is the most typical equation of state.

Given,

Mass of hydrogen, m = 18000 kg

Pressure, P = 1 atm

Temperature, T = 0°c.

Using Ideal gas law, PV = mRT

Where, R = gas constant (R= 4124.4 J/kg-K)

Putting values in the equation

PV = mRT

V = [tex]\frac{mRT}{P}[/tex]

= [tex]\frac{18000kg X 4124.4 J/Kg - K X(0+273) K}{1 atm X 101325 Pa/atm}[/tex]

= [tex]\frac{18000 kg X 4124.4 \frac{N.m}{kg.K}X (0+273) K }{101325 \frac{N}{m^{2} } }[/tex]

= 200022.715 m²

≅ 2.0 × 10⁵ m³.

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Warning signs are fire fighters in most jurisdictions alerted of the high pressure.

By taking away heat or oxygen or by interfering with chemical reactions, suppression agents put out fires. When the system is turned on, the agent moves from the cylinder to the safe area either directly through the detection tube or via hoses and nozzles that are connected to it.

The Most Popular Styles of Fire Suppression Equipment

Systems for putting out fires that use water. Chemical Foam Suppression Systems, Pneumatic Heat Detection Tubes, Pressurized Gas Systems, Foam Deluge Systems, and Water Extinguishing Systems are some of the most popular fire protection systems.

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To calculate the distance from the earthquake to the station, divide the arrival times of the P and S waves. Calculate the separation between the initial P and initial S waves. The first P and S waves in this instance are separated by 24 seconds.

The beginning of the earthquake's rupture is where the epicenter of a hypothetical earthquake is situated. The epicenter is the location that is directly above the Earth's surface.

The focal point is the location where an earthquake begins within the crust of the Earth. The epicenter is a location on the surface of the Earth that is directly above the focus.

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Answer:

The reason why the Milky Way is not expanding together with the rest of the universe is because local gravity dominates over the expansion of the universe. (The expansion of the universe is a relatively weak force acting throughout the universe).

Explanation:

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The total volume of fat in the body is 22.5L.

Since there are numerous body composition outcomes that could change the body fat percentage in such a way, it is impossible to know for sure.

You could reduce your body fat and lean mass from 18 to 15 percent. However, you could also put on some lean mass during the process and lose less fat as a result to maintain the same percentage.

Alternately, you could put on more lean mass while also gaining fat, which would ultimately bring your body fat percentage down to 15%. Alternatively, one of the fat/lean masses could be maintained constant, and only the other would alter accordingly.

A different weight, but the same percentage, would be assigned to each of those outcomes.

20% of 50 kg= 20 x 50/100=10kg

Density =100

D=M /V

V=M/D

=10/100

=0.1l

Total volume = standard volume + calculated volume

=22.4 +0.1

=22.5L

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