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devlian [24]
2 years ago
8

While standing in a low tunnel, you raise your arms and push against the ceiling with a force of 100 n. your mass is 70 kg. what

force does the ceiling exert on you?
Physics
1 answer:
alekssr [168]2 years ago
3 0
This is a manifestation of Newton's third law of motion called the Law of Action-Interaction. It states that when a body is at rest or not moving, for every force exerted on the object, an equal,opposite force is exerted also towards you. Thus, the ceiling also exerts an equal force of 100 Newtons.
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Afina-wow [57]
The speed is 10.5 miles per minute, or 630 miles per hour.
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8 0
2 years ago
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For a demonstration, a professor uses a razor blade to cut a thin slit in a piece of aluminum foil. When she shines a laser poin
Art [367]

Answer:

width of slit(a)≅ 0.1mm

Explanation:

Wave length of laser pointer =λ = 685 nm

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width of slit=a

recall the formula;

W=(2λL)/a

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a=(2 *685*10⁻⁹*5.5m)/0.08m

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5 0
3 years ago
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FromTheMoon [43]

Answer:

Explanation:

A.

Given:

Vo = 21 m/s

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B.

Given:

S = 22.5 + 21 mm

= 22.521 m

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Using the equation of motion,

S = Vo × t + 1/2 × a × t^2

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4 0
3 years ago
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Answer:

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Explanation:

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v=\dfrac{1200}{t}\ m/s

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The force measured to move a sled was 10 N and the sled was moved 10 meters,
sergey [27]

Answer:

work done would be I don't know

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