Two point charges are separated by 6 cm. the attractive force between them is 20 n. find the force between them when they are separated by 12 cm. (why can you solve this problem without knowing the magnitudes of the charges? )

Current 1 of 8.4 a runs for 240 seconds and then stops. current 2 is 10.5 a. how long does current 2 have to un to deliver the same amount of charge as current 1? 88.28 192 s 2016 s 21,000 s

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

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.