Answers: 3
Physics, 22.06.2019 14:40
An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.
Answers: 1
Physics, 22.06.2019 19:30
Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.
Answers: 1
Physics, 22.06.2019 19:30
Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?
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Physics, 22.06.2019 22:00
Should we celebrate the voyages of zheng he mini q answer key
Answers: 3
Calculate the power expended by peter who carries a 11 kg box 6m high in 3s...
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