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3 years ago

A projectile is fired with a velocity of 45 m/s at an angle of 32°. What is the

Physics

1 answer:

Dennis_Churaev [7]3 years ago

8 0

Answer:

Explanation:

To calculate adjacent of triangle use

$\cos(32) = \frac{a}{45}$

where 45 is the hypotenuse, and a is the adjacent side (horizontal component)

$45 \cos(32) = 38.16$

then round to 38.2

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what was the mass of a cannkn ball whose velocity is 200m/s if it were shot from 1000kg that recoils a 2m/s. Solve step by step

Whitepunk [10]

The famous Newton’s Third Law states that “For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.”

By using this,

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3 years ago

Which subatomic particle has the least mass?

goblinko [34]

Answer:

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Explanation:

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2 years ago

A north magnetic pole is facing another north magnetic pole with a distance x. If the distance between the poles becomes 12x, wh

krek1111 [17]

Answer:

1.)The field energy will increase.

The rest of the answers:

2.)The energy increases, and the lines of force are denser

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2 years ago

Which simple machine belongs to the inclined plane family

Vlad [161]

The wedge and screw simple machines

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3 years ago

I NEED HELP PLEASE, THANKS! :)

Yuliya22 [10]

Answer:

Radio waves have a wavelength between $10^{-9}m$ and $10^{-12}m$

While,

X rays have a wavelength between 1m and 10km.

=> It is one of the condition of diffraction that the obstacle (coming in the way) must be comparable with the size of the wavelength.

=> This shows, that radio waves have a wavelength which is comparable with the size of buildings and can really easily diffract through it

=> While, X-rays are big enough to diffract through the wall.

So, if an X-ray technician stands behind a wall during the use of her machine, she will remain safe.

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3 years ago