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Doss [256]
3 years ago
13

You push a heavy crate out of a carpeted room and down a hallway with a waxed linoleum floor. While pushing the crate 2.5 m out

of the room you exert a force of 385 N; while pushing it 10 m down the hallway you exert a force of 130 N. To slow it down you exert a force of 350 N through a distance of 2.0 m, opposite to the motion. How much work do you do in all?
Physics
1 answer:
Alinara [238K]3 years ago
3 0

Answer:

W = 1562.5 J

Explanation:

Path 1:

W₁ = F₁*d₁ = 385 N * 2.5 m = 962.5 J

Path 2:

W₂ = F₂*d₂ = 130 N * 10 m = 1300 J

Path 3:

W₃ = F₃*d₃ = (-350 N) * 2 m = - 700 J  (opposite to the motion)

We get

W = W₁ + W₂ + W₃ = 962.5 J + 1300 J + (- 700 J) = 1562.5 J

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A single conducting loop of wire has an area of 7.26E-2 m2 and a resistance of 117 Ω. Perpendicular to the plane of the loop is
cricket20 [7]

Answer:

\frac{dB}{dt} = 591.45 T/s

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i = induced current in the loop = 0.367 A

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E = Induced voltage

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E = i R

E = (0.367) (117)

E = 42.939 volts

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