Physics, 04.03.2020 04:59 MaddieXMooo990
Assume: The small objects are point particles. The system of seven small 2 kg objects is rotating at an angular speed of 9 rad/s. The objects are connected by light, flexible spokes that can be lengthened or shortened.
A) What is the initial angular momentum of the object?
B)What is the new angular speed if the spokes are shortened from 9 m to 6 m ?
C)What is the new angular momentum of the object?
Answers: 3
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Physics, 22.06.2019 19:50
Aleaky 10-kg bucket is lifted from the ground to a height of 15 m at a constant speed with a rope that weighs 0.7 kg/m. initially the bucket contains 45 kg of water, but the water leaks at a constant rate and finishes draining just as the bucket reaches the 15-m level. find the work done. (use 9.8 m/s2 for g.) show how to approximate the required work by a riemann sum. (let x be the height in meters above the ground. enter xi* as xi.) lim n โ โ n (9.8)(45โ3 xi) i = 1 ฮดx express the work as an integral. 0 dx evaluate the integral. (round your answer to the nearest integer.) j
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Physics, 22.06.2019 20:30
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