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Rufina [12.5K]
3 years ago
13

Which of the following statements is true?

Physics
1 answer:
Grace [21]3 years ago
3 0
I would recommend <span>C)Organic compounds always contain carbon and hydrogen.</span>
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The picture to the right shows which wave behavior?
kifflom [539]

Answer:

It is refraction

Explanation:

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3 years ago
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Heat is:_________
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Answer:

The answer is C ..

EXPLANATION:-

The amount of energy transferred between objects as a result of a difference in temperature.

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How far from the surface of Earth is the magnitude of Earth's gravitational field equal to 7.86 N/kg?
AfilCa [17]

Answer:

7.48 x 10⁵ m

Explanation:

g = 7.86 N/kg

M = 5.97 x 10²⁴ kg, R = 6.37 x 10⁶ m.

Find height h

g = GM/(R + h)²

(R + h)² = GM/g = 6.67 x 10⁺¹¹ x 5.97 x 10²⁴ /7.86 = 5.066 x 10¹³

R + h = 7.12 x 10⁶ m

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h =  7.12 x 10⁶ - 6.37 x 10⁶ = 7.48 x 10⁵ m

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2 years ago
A concave mirror has a radius of curvature of 1.6m. Find the focal length
Yuki888 [10]
Given,

Radius of curvature of concave mirror = 1.6m

We know that ,

Focal length = radius/2

Hence ,

Focal length of concave mirror = radius of concave mirror /2

=> F = 1.6/2

=> F = 0.8m

Hence the focal length of concave mirror is 0.8 m
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Through which medium is it impossible to transmit sound waves?.
dusya [7]

Answer: vacuum

Explanation: The vacuum is the medium from where the sound wave cannot pass. A vacuum is basically an area without any air. Since the sound wave is a mechanical wave that's why it cannot travel through a medium where there is no matter of vibrations to works in, i.e, it can't travel through a vacuum.

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2 years ago
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