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Stolb23 [73]
1 year ago
9

Please help! I'm begging anyone! This is urgent! These are the problems in physics I am having difficulty with!

Physics
1 answer:
spin [16.1K]1 year ago
7 0

Answer:

1.

Distance = 0.921 meters

2.

Work = 13.9 kJ

3.

The neighbor

Double your work

Explanation:

1.

Work = Force × Distance

Distance = Work / Force

Distance = 174J /189 N

Distance = 0.921 meters

2.

Work = force × distance

Work = (613 N) (22.6 m)

Work = 13,900 J

Work = 13.9 kJ

3.

Work is a product of force and distance, expressed as W=Fd where W is work in Nm, F is applied force and d is the distance in m

Since your neighbor pushes 4 times then you just push 1m when he pushes 4m, that is an example. Also, since the neighbor only exerts half the force i.e. 0.5N then you exert full force of 1N

Work from your neighbor will be 4d*0.5F=2dF

Work from you will be dF

Clearly, 2dF=2(dF) hence the neighbor exerts double work

https://brainly.in/question/9922561

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Two astronauts of mass 100 kg are 2 m apart in outer space. What is the
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Explanation:

The magnitude of the gravitational force between two objects is given by:

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4 0
3 years ago
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How do Newton’s laws of motion explain why it is important to keep the ice smooth on a hockey rink so that players can pass a pu
notka56 [123]

Answer:

Newton's first law

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2 years ago
A 3.00 kg mass is traveling at an initial speed of 25.0 m/s. What is the
Nitella [24]

Answer:

The magnitude of the force required to bring the mass to rest is 15 N.

Explanation:

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mass, m = 3 .00 kg

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distance traveled by the mass, d = 62.5 m

The acceleration of the mass is given as;

v² = u² + 2ad

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3 years ago
Why do heavier objects fall at the same speed as lighter ones?
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In this context, Earth is similar to a magnetic bar with a north pole and a south pole. This means, the axis that crosses the Earth from pole to pole is like a big magnet.  

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Being the magnetic poles the places where the Earth's magnetic field is weakest. And it is for this reason, moreover, that the magnetic field lines enter the Earth through its magnetic south pole (which is the geographic north pole).

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