4 years ago

You strike a tuning fork. explain how the fork produces sound waves that you can hear.

Physics

1 answer:

lyudmila [28]4 years ago

6 0

It produces sound waves because the tuning fork is vibrating and ringing

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_______ describes gases as small, energetic particles moving around and bouncing into each other?

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D. The Kinetic theory of matter

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3 years ago

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Provide at least one example of acceleration and explain why it would be considered a scalar or vector quantity.

Gelneren [198K]

Take gravity you are accelerated toward the ground. Since gravity has both a direction and a magnitude, then it is a vector.

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3 years ago

1. What is the kinetic energy of a 1.75 kg ball travelling at a speed of 54 m/s?

Over [174]

Answer:

We conclude that the kinetic energy of a 1.75 kg ball traveling at a speed of 54 m/s is 2551.5 J.

Explanation:

Given

Mass m = 1.75 kg

Velocity v = 54 m/s

To determine

Kinetic Energy (K.E) = ?

We know that a body can possess energy due to its movement — Kinetic Energy.

Kinetic Energy (K.E) can be determined using the formula

$K.E=\frac{1}{2}mv^2$

where

m is the mass (kg)

v is the velocity (m/s)

K.E is the Kinetic Energy (J)

now substituting m = 1.75, and v = 54 in the formula

$K.E=\frac{1}{2}mv^2$

$K.E=\frac{1}{2}\left(1.75\right)\left(54\right)^2$

$K.E=1458\times 1.75$

$K.E=2551.5$ J

Therefore, the kinetic energy of a 1.75 kg ball traveling at a speed of 54 m/s is 2551.5 J.

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3 years ago

If you are 5.00ft and 10.0in tall, what is your height in meters

Stolb23 [73]

The answer that I got was 5'8333..., which is the total for height and in inches, all of this would be 70 inches, or 1.78 meters, or 178 centimeters, or 1780 millimeters, but just go for the height that person is going to be at, 5'833... (this is repeated so just round it up to 5'8 if you want to.)

Hope this helped!

Nate

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3 years ago

A person struggles very hard to lift a large boulder. He puts in so much effort, he starts to sweat, his heart rate increases, a

Lesechka [4]

No, he did not perform any work. Work is when you’re using energy which results in a force. Even though he was tired and sweaty, he did not move the boulder. So therefore he did not perform any work.

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4 years ago