A man has 2 spheres A and B. He gently drops sphere A vertically down and throws the sphere B horizontally at the same time. Which of the following statements is correct? A. sphere B reaches the ground earlier

B. not enough information

C. both spheres reach the ground at the same time

D. sphere A reaches the ground earlier

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

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

What is offspring? why does a longer life span mean a higher chance of producing offspring?