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ale4655 [162]
2 years ago
9

If an object is dropped from 10 m above the ground, what is the height at which its kinetic energy and potential energy are equa

l?​
Physics
1 answer:
Mama L [17]2 years ago
5 0

potential energy is converted to kinetic energy as the ball drops.


they will be equal at the halfway point.


answer: 5 m

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What is the formula for calcium chloride
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The correct answer is - CaCl2

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Hope I helped and good luck!
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4 years ago
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Answer:

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Or

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4 0
3 years ago
A loudspeaker, mounted on a tall pole, is engineered to emit 75% of its sound energy into the forward hemisphere, 25% toward the
Naily [24]

Answer:

"0.049 W" is the correct answer.

Explanation:

According to the given question,

r = \sqrt{(3.5)^2+(2.5)^2}

  =\sqrt{8.5}

SL=85

As we know,

⇒  SL=10 \ log(\frac{I}{I_o} )

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Now,

⇒  P_{front} = I(2\pi r^2)

               =(3.162\times 10^{-4})(2\pi\times 18.5)

               =0.0368 \ W

               =0.75 \ P

or,

                =0.049 \ W

7 0
3 years ago
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The third one.

The nucleus of an atom is made up of protons and neutrons. Protons and neutrons have the same relative mass (rounded to 1). Electrons have an extremely small mass.

Therefore, the particles in the nucleus are more massive than those in the electron cloud.
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2 years ago
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