We can work out the gain in GPE of the box. I'm going to take g to be 9.81 however if your qualification takes g to be 10 you'll need to change it in all the workings:
GPE = mgh
= 400 x 9.81 x 10
=39240J
So, the machine has given 39240J of energy to the box.
Therefore the minimum power generated by the motor is:
39240/8=4905W = 4.9 x 10^3 W
Note this is the <em>minimum</em> possible power generated by it and it is almost certain (well completely certain in the real world) that it will generate far more power than that because it will not be 100% efficient.
It's revolution, and no, that would be a rotation.
V used to denote speed of the wave
Is determined by the product of the wave’s frequency and wavelength.
The number of times a wave oscillates or repeats again and again multiplied by the distance.
V = 12 • 1.5 = 12 • 3/2 = 18 m/s
The speed of the wave is 18 m/s.
The acceleration due to gravity of the asteroid is 833.85 N.
<h3>
Force of gravity holding the the alien down</h3>
F = mg
where;
- m is mass of the alien
- g is acceleration due to gravity
Assuming the acceleration due to gravity of the asteroid = 9.81 m/s²
F = 85 x 9.81
F = 833.85 N
Thus, the acceleration due to gravity of the asteroid is 833.85 N.
Learn more about force of gravity here: brainly.com/question/2537310
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