please write a full solution to this question on a piece of paper and upload your answer back hereif a space station being constructed to rotate has a radius of 42.5m，how many tiomes per minute would it need to rotate to produce an artificial gravitational field that is 40% of Earth's gravitational field？

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s