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charle [14.2K]
1 year ago
15

A 0.28 kg stone is held 1.2 m above the top edge of a water well and then dropped into it. The well has a depth of 5.2 m.

Physics
1 answer:
Likurg_2 [28]1 year ago
5 0

The gravitational potential energy of the stone is <u>+2.5 J.</u>

Gravitational capability strength is electricity an item possesses because of its function in a gravitational area. The most common use of gravitational ability power is for an object near the floor of the Earth in which the gravitational acceleration may be assumed to be regular at about nine.eight m/s2.

Gravitational strength or gravitational potential energy is the capacity power a large item has when it comes to any other large item because of gravity. it's far the ability power associated with the gravitational area, that is released when the gadgets fall closer to each different.

(a) y = 1.3m: U = mgh = (0.20kg)(9.80m/s*)(1.3m) = +2.5T

(b) y =-5.0m : U = mgh = (0.20kg)(9.80m/s”)(-5.0m) = —9.83

(0) AU =U,--U; = (-9.83)-(2.5J) = -12.3 = -123

Learn more about  gravitational potential energy here:-brainly.com/question/15896499

#SPJ4  

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(a)

F' = μ'mg.................... Equation 1

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(b) Similarly,

F = μmg.................. Equation 3

Where F = Horizontal force that is required to keep the block moving with constant speed, μ = coefficient of kinetic friction.

make μ the subject of the equation

μ = F/mg.............. Equation 4

Given: F = 60 N, m = 25 kg, g = 9.8 m/s²

Substitute these values into equation 4

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