3 years ago

A student pushes on a crate with a force of 100 Newtons directed to the right.

Physics

1 answer:

romanna [79]3 years ago

6 0

Answer:

100N

Explanation:

Newton's third law of motion

For every action, there is an equal and opposite reaction.

Therefore 100N of force is exerted by the crate on student as a reaction to his action

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D=m/V therefore the answer is 120/200 or 0.6

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2 years ago

In a physics lab, Asha is given a 10.7 kg uniform rectangular plate with edge lengths 67.3 cm by 53.5 cm . Her lab instructor re

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Answer:

$I=2.6363\ kg.m^2$

Explanation:

Given:

dimension of uniform plate, $(0.673\times 0.535)\ m^2$

mass of plate, $m=10.7\ kg$

Now we find the moment of inertia about the center of mass of the rectangular plate is given as:

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where:

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$B=$ breadth of the plate

$I_{cm}=\frac{1}{12} \times 10.7\times(0.673^2+0.535^2)$

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We know that the center of mass of the rectangular plane is at its geometric center which is parallel to the desired axis XX' .

Now we find the distance between the center of mass and the corner:

$s=\frac{\sqrt{ (0.673^2+0.535^2)}}{2}$

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Now using parallel axis theorem:

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3 years ago

A high school bus travels 240 km in 6.0 h. What is its average speed for the trip? (in km/h).

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Answer:

40 km/h

Explanation:

First...

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Next...

Use the formula: 240/6.0

Finally...

Solve: 40

So the answer: 40 km/h

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3 years ago

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3 years ago

Read 2 more answers