Arock is dropped from the top of a vertical cliff and takes 3.00 s to reach the ground below the cliff. a second rock is thrown vertically from the cliff, and it takes this rock 2.00 s to reach the ground below the cliff from the time it is released. with what velocity was the second rock thrown, assuming no air resistance?
a) 12.3 m/s upward
b) 4.76 m/s downward
c) 4.76 m/s upward
d) 12.3 m/s downward
e) 5.51 m/s downward
Answers: 1
Physics, 21.06.2019 22:20
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What is the electric force acting between two charges of -0.0045 c and -0.0025 c that are 0.0060 m apart? use fe=kq1q2/r^2 and k = 9.00 x 10^9 n*m^2/c^2 a. 1.7 x 10^7 n b. -1.7 x 10^7 n c. -2.8 x 10^9 n d. 2.8 x 10^9 n
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Arock is dropped from the top of a vertical cliff and takes 3.00 s to reach the ground below the cli...
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