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Cerrena [4.2K]
4 years ago
10

Which statement is true? A) The work done to lift an object 6 meters is greater than the gravitational potential energy it gains

. B) The work required to push an object is less than the work required to pull an object the same distance. C) The work required to raise an object to a height is equal to the gravitational potential energy the object gains. D) The work done against gravity to lift an object straight up is greater than the work required to roll it up a ramp.
Physics
1 answer:
inna [77]4 years ago
4 0

The work required to raise an object to a height is equal to the gravitational potential energy the object gains. <em>(C)</em>

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The circuit court is also known as the court of appeals. <br> a. True<br> b. False
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Which travels at the greatest speed?
lyudmila [28]
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4 years ago
When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12Hz. When
anzhelika [568]

Answer:

Explanation:

Given

When m_1 mass is attached to the spring its frequency is f_1=12\ Hz

when another mass m_2 is attached to m_1 , frequency changes to f_2=4\ Hz

frequency of spring mass system is given by

f=\frac{1}{2\pi }\sqrt{\frac{k}{m}}

for m_1

f_1=\frac{1}{2\pi }\sqrt{\frac{k}{m_1}}

12=\frac{1}{2\pi }\sqrt{\frac{k}{m_1}}-----1

for m_1 and m_2

f_2=\frac{1}{2\pi }\sqrt{\frac{k}{m_1+m_2}}

4=\frac{1}{2\pi }\sqrt{\frac{k}{m_1+m_2}}----2

divide 1 and 2

3=\sqrt{\frac{m_1+m_2}{m_1}}

squaring

9=1+\frac{m_2}{m_1}

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8 0
3 years ago
An automobile engine is 15 percent efficient. How many joules of input work are required to produce 15,000 joules of output work
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15,000J/.15% = 100,000 J

If you want to check,
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3 years ago
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