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Vaselesa [24]
4 years ago
8

Mike is complaining that he did 150 j of work when moving a couch that has a mass of 30 kg a distance of 15 m. how much force di

d he use to move the couch?
Physics
2 answers:
Citrus2011 [14]4 years ago
8 0

10 N is how much force he used to move the couch.

solmaris [256]4 years ago
6 0
We know, W = F * s
150 = F * 15
F = 150 / 15
F = 10 N

In short, Your Answer would be 10 Newton

Hope this helps!
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What part of the electromagnetic spectrum can be seen by humans?
Oxana [17]

Answer:

Visible light

Explanation:

Electromagnetic spectrum is the classification of the electromagnetic waves based on their frequency and wavelength. In order from the shortest to the longest wavelength, we have

Gamma rays

X-rays

Ultraviolet

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Infrared radiation

Microwaves

Radio waves

All these waves are invisible to human eye, except for the visible light part. Visible light is perceived as a different color by the human eye, depending on the wavelength of the light. In particular, we have:

Violet: 380 - 450 nm

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4 0
3 years ago
How is work related to force and displacement?
VashaNatasha [74]

Answer:

Displacement is the distance and direction an object is moved. Force and work are directly proportional to each other, while force and displacement are indirectly propotional. The equation showing the relationship is W= Fd. OR Work is a scalar. The rate at which work is done or at which energy is transferred. Work is equal to the force parallel to the displacement.

Explanation:

3 0
3 years ago
A man of mass 80.0 kg stands on a platform of mass 40.0 kg. He pulls on a rope that is fastened to the platform and runs over a
Vesnalui [34]

Answer:F=648 N

Explanation:

Given

mass of man m_1=80 kg

mass of Platform m_2=40 kg

acceleration of system a=1 m/s^2

Let F be the force with which man pulls the rope which will also create a tension of F in rope

From Diagram

2F-(m_1+m_2)g=(m_1+m_2)a

2F=(m_1+m_2)(g+a)

F=\frac{(m_1+m_2)(g+a)}{2}

F=\frac{(80+40)(9.8+1)}{2}

F=\frac{1296}{2}

F=648 N

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Andreas93 [3]
The pitcher's power is given by the formula P= fxv
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