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Vaselesa [24]
3 years ago
11

Describe three important ways we use the electromagnetic spectrum in our everyday lives.

Physics
1 answer:
OlgaM077 [116]3 years ago
5 0

Answer:

We use X-rays to help the injured, Radiowaves to communicate or entertain, and Visible light to see.

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Answer:

72 joules

Explanation:

The potential energy of that hammer is a function of its displacement against gravity. Considering that it fell with a velocity of 12 m/s, it was its displacement against gravity that gave it this velocity. It will continue to move until its displacement to gravity is zero.

since the body is in motion; it has converted its potential energy (mgh, m is mass, g is acceleration due to gravity, and h is the height) to kinetic energy (energy due to motion, 1/2mv^2; m = mass, v = velocity or speed)

therefore the potential energy is equal to kinetic energy

mgh = 1/2mv^2 = 1/2 *1kg* 12*12 = 72 joules.

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The chemical energy in Jay's body, to kinetic energy in the car
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0.002 written in scientific notation
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3 years ago
Sound enters the ear, travels through the auditory canal, and reaches the eardrum. The auditory canal is approximately a tube op
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Answer: An organ pipe is open at both ends. It is producing sound at its third harmonic, the frequency of which is 262 Hz. The speed of sound is 343 m/s. What is the length of the pipe?

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Which kind of air front forms when a warm air mass meets the area of a cooler air mass?
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