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Ivahew [28]
2 years ago
14

If I have an object that starts from rest and reaches a velocity of 25m/s over a distance of 11m what is the acceleration of the

object
28.4m/s
28m/s
28.4m/s^2
28m/s^2
Physics
1 answer:
Elodia [21]2 years ago
3 0

Answer:

Here is something that may help you!!

Explanation:

I found it in a cite (not that I'm plagiarizing, or anything).

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1. A 1000 kg equipment lift travels up a 200 m shaft in 45 seconds. Assuming the speed is constant, what is the
ANTONII [103]

Answer:

43,555 W

Explanation:

Since the speed is constant, this means that the force applied to lift the equipment is equal to the weight of the equipment. So we can write:

F=mg

where

m = 1000 kg is the mass

g=9.8 m/s^2 is the acceleration due to gravity

So,

F=(1000)(9.8)=9800 N

Then the work done in lifting the equipment is:

W=Fd

where

d = 200 m is the displacement of the equpment

Substituting,

W=(9800)(200)=1.96\cdot 10^6  J

Finally, the power used to lift the equipment is the ratio between the work done and time taken:

P=\frac{W}{t}

where

W=1.96\cdot 10^6 J

t = 45 s is the time taken

Solving,

P=\frac{1.96\cdot 10^6}{45}=43,555 W

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3 years ago
Northrop aircraft developed and built a deceleration sled to test the effects of the extreme forces on humans and equipment. In
dolphi86 [110]
20 hours i think that what they do
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Describe the general characteristics of the nearest stars. (Size, luminosity, color, etc., do not include specific stars)
Darina [25.2K]

Answer: The five general characteristics of the nearest stars are the brightness, color, surface temperature, size, and mass.

Explanation:

The mass of a star can be described as being measured with our sun at 1 solar mass. One star can equal the size of our sun. There is one star named, Rigel, that is bigger than the Earths sun. Each star will vary in its density.

The size of the star, as stated above, can be the size of our sun and sometimes larger. The size is measured by solar radii.

Stars vary in their temp. They range anywhere from -273.15 degrees Celsius to 50,000 K. The temp is based on the Kelvin scale.

The stars brightness are always based on luminosity and magnitude.

The stars colors will vary and is based on the temperature of the surface of the star. Some stars are red in color, white in color, and some even have a bluish color.

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If you remove large amounts of heat from a liquid, what could happen
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A liquid becomes a solid when energy is removed. The energy content decreases, and the speed of the particles decrease.
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Can someone please help?
kenny6666 [7]

Answer:

uh with what?

Explanation:

4 0
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