Nate drops a penny into a fountain at the mall. it falls from his hand straight down into the fountain. describe what the free body diagram would look like as the penny falls. pick all that are true. a) the arrow pointing down would be longer than the arrow pointing up. b) the arrow pointing up would be longer than the arrow pointing down. c) the arrow pointing left would be the same size as the one pointing to the right. d) the arrow pointing left would be longer than the arrow pointing right.

Groups of organs that work together to complete a process in the body are called: a. cells b. tissues c. nerves d. systems

If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction

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