PLEASE HELP
A pendulum is swinging back and forth. After t seconds, the horizontal dista...
Mathematics, 29.03.2020 00:52, xojade
PLEASE HELP
A pendulum is swinging back and forth. After t seconds, the horizontal distance from the bob to the place where it was released is given by H(t)=7−7cos( 2π(t−2)/20). How often does the bob cross its midline? Give an exact answer.
Answers: 2
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Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w
Answers: 1
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Can anyone explain to me how to do this? anything will .
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