Answer:
1.72 m
Explanation:
Potential energy = mgh, where m is mass, g is acceleration due to gravity (9.8), and h is height
76 = (3.5)(9.8)h
76=44.1h
h=1.72335600907 ≈1.72 m
Gravitational force on a satellite is given by the formula

now here we know that force on the satellite is F when its distance from center of Earth is R
Now the distance from the center of earth will be 3R so the force is given as


so if we compare it with initial value of force then it is

so correct answer is

The first ariplanr was made December 17, 1903
The correct answer is <span>X–rays.
X-beams or X-rays are a kind of radiation called electromagnetic waves. X-beam imaging makes photos of within your body. The pictures demonstrate the parts of your body in various shades of high contrast. This is on account of various tissues retain diverse measures of radiation.
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Answer:
Kinetic energy
Explanation:
Kinetic energy is a function of velocity. Since the rider is moving at a certain speed, he's demonstrating kinetic energy. It can't be potential energy because potential energy encompass mgh