Physics, 06.11.2019 20:31 amcdonald009
6. a wooden chair is pushed across a wooden floor. the friction force is 34.5 n. what
is the weight of the chair? what is the mass of the chair? (=0.30)
7. a copper piggy bank is pushed across a steel counter. the frictional force is 12 n
what is the mass of the piggy bank? (u= 0.36)
8. you are dragging a cat by its tail. the u between your cat and the floor is 0.21. if the
frictional force between your cat and the floor is 2.5 n, find the cat's mass.
i
Answers: 3
Physics, 21.06.2019 23:20, nathalyviruete
Imagine you had to physically add electrons, one at a time, to a previously neutral conductor. you add one electron very easily, but the second electron requires more work. in your initial post to the discussion, explain why this is. also, what happens to the work needed to add the third, fourth, fifth, and subsequent electrons
Answers: 1
Physics, 22.06.2019 07:20, aliviafrancois2000
Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?
Answers: 2
Physics, 22.06.2019 19:50, nadiareese
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 → ∞ n (9.8)(45−3 xi) i = 1 δx express the work as an integral. 0 dx evaluate the integral. (round your answer to the nearest integer.) j
Answers: 3
6. a wooden chair is pushed across a wooden floor. the friction force is 34.5 n. what
is the w...
is the w...
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