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3 years ago

Select the correct answer.

Physics

1 answer:

Setler79 [48]3 years ago

4 0

Answer: C. The mass of the object will be the same on both planets.

Explanation:

Let's start by explaining that mass and weight are:

Mass $m$ is the amount of matter that exists in a body, which only depends on the quantity and type of particles within it. This means mass is an intrinsic property of each body and remains the same regardless of where the body is located.

On the other hand, weight $W$ is a measure of the gravitational force acting on an object and is directly proportional to the product of the mass $m$ of the body by the acceleration due gravity $g$ :

$W=m.g$

<h3>Then, since the Earth and Neptune have different values of acceleration due gravity, the weight of an object in each place will vary, but its mass will not. In fact, the mass will remain the same.</h3>

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A 70 kg hunter, standing on frictionless ice, shoots a 42 g bullet horizontally at a speed of 590 m/s . Part A Part complete Wha

Kisachek [45]

Answer:

The recoil velocity is 0.354 m/s.

Explanation:

Given that,

Mass of hunter = 70 kg

Mass of bullet = 42 g = 0.042 kg

Speed of bullet = 590 m/s

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Using conservation of momentum

$m_{1}u_{1}+m_{2}u_{2}=m_{1}v_{1}+m_{2}v_{2}$

Where, $m_{1}$ = mass of hunter

$m_{2}$ = mass of bullet

u = initial velocity

v = recoil velocity

Put the value in the equation

$0+0=70\times v_{1}+0.042\times590$

$v_{1}=-\dfrac{0.042\times590}{70}$

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Hence, The recoil velocity is 0.354 m/s.

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3 years ago

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notsponge [240]

Answer:

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Explanation:

C = 5000 pF, V = 400 V

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2 years ago

A student pushes a 2.85 kg cart causing it to accelerate at a rate of 4.9 m/s squared .What amount of force must the student hav

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Therefore,
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Since N=kg(m/s^2)
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3 years ago

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sladkih [1.3K]

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