A learner sets up a circuit to determine the conductivity of certain solids. What piece of apparatus is not required for the next experiment ? A. battery
B. light bulb
C. conducting wire
D. stopwatch​

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.