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andrew-mc [135]
3 years ago
14

As a person pushes a box across a floor, the energy from the person’s moving arm is transferred to the box, and the box and floo

r become warm. During this process, energy is?
Physics
2 answers:
AveGali [126]3 years ago
8 0

Explanation:

When the box is pushed against the floor then there will be a frictional force which will push the box in opposite direction of the force applied by the person.

Therefore, this frictional force will also release heat that will make the box and floor warm.

Hence, we can conclude that as a person pushes a box across a floor, the energy from the person’s moving arm is transferred to the box, and the box and floor become warm. During this process, energy is converted to heat energy because of the frictional force.

Naya [18.7K]3 years ago
5 0
Converted to heat energy due to friction caused by the box rubbing the floor
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Who was the proponent of the Neo-classicism?

a) Claude Debussy

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c) Igor Stravinsky

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A train traveled 85 mph for 7 hours how far did it travel?
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Answer:

12.1429 miles per hour

Explanation:

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A 50 kg boy is at the edge of a circular platform of radius 4.0 m which is rotating freely
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Answer:

0.62 rad/s

Explanation:

Angular momentum is conserved.

I₁ ω₁ = I₂ ω₂

where I is moment of inertia and ω is angular velocity.

The total moment of inertia is the sum of the platform's inertia and the boy's.

(I + m r₁²) ω₁ = (I + m r₂²) ω₂

Given I = 1000 kg m², m = 50 kg, r₁ = 4.0 m, r₂ = 3.0 m, and ω₁ = 0.5 rad/s:

(1000 + 50 (4.0)²) (0.5) = (1000 + 50 (3.0)²) ω₂

900 = 1450 ω₂

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8 0
3 years ago
Which sound waves in the electromagnetic spectrum are considered low energy waves
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3 years ago
A long distance runner running a 5.0km track is pacing himself by running 4.5km at 9.0km/h and the rest at 12.5km/h. What is his
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9.26 km/h

Explanation:

Applying,

V' = D'/t'............... Equation 1

Where V' = Average speed, D' = Total distance, t' = total time.

Given: D' = 5 km

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v = d/t............ Equation 2

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t = d/v............ Equation 3

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3 years ago
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