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Firdavs [7]
3 years ago
14

4. You exert 375 J to move a 45-kg object 5 m. How much force is required? (Points : 3)

Physics
1 answer:
Yuri [45]3 years ago
4 0
In physics, a force is said to do work<span> if, when acting, there is a displacement of the point of application in the direction of the force. It is calculated by the formula W = f x d. Therefore, we calculate the problem above as follows:

W = f x d
375 = f x 5
</span>f = 75 N <------SECOND OPTION
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seraphim [82]

Answer: 18.27°

Explanation:

Given

Index of refraction of blue light, n(b) = 1.64

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Wavelength of red light, λ(r) = 670 nm

Angle of incident, θ = 30°

Angle of refraction of red light is

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4 0
3 years ago
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Answer:

Electron shell

Nucleus

Neutrons

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An atom is made up of three fundamental subatomic particles which are the protons, neutrons and electrons.

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  • Both protons and neutrons are found in the tiny nucleus at the center of that atom.
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