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Gekata [30.6K]
3 years ago
7

Attempting to move a large rock useing a long lever will the work you do on the lever be greater than the same as or less than t

he work done by the lever on the rock?
Physics
1 answer:
jolli1 [7]3 years ago
6 0
The work that you do on the lever will be the same as the work done by the lever on the rock. This aligns with the Law of the Conservation of Energy which states that energy can not be created nor destroyed. Since work can be calculated as force applied over a distance, you will apply a smaller force but your distance will be longer. The lever will apply a greater force over a shorter distance in proportion to yours. Therefore, the same amount of work is done on both sides of the lever. 
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"Maritime" air . . . . . always high relative humidity

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"Maritime polar" air . . . . . choice-A
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3 years ago
A student is investigating potential and kinetic energy by stretching a spring across a table when the student lets go the sprin
nikitadnepr [17]

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Explanation:

7 0
3 years ago
What kind of reaction typically has a carbon compound and oxygen as
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Answer:

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3 0
3 years ago
A uniformly charged sphere has a potential on its surface of 450 V. At a radial distance of 7.2 m from this surface, the potenti
Yakvenalex [24]

Answer:

The radius of the sphere is 3.6 m.

Explanation:

Given that,

Potential of first sphere = 450 V

Radial distance = 7.2 m

If the potential of sphere =150 V

We need to calculate the radius

Using formula for potential

For 450 V

V=\dfrac{kQ}{r}

450=\dfrac{kQ}{r}....(I)

For 150 V

150=\dfrac{kQ}{r+7.2}....(II)

Divided equation (I) by equation (II)

\dfrac{450}{150}=\dfrac{\dfrac{kQ}{r}}{\dfrac{kQ}{r+7.2}}

3=\dfrac{(r+7.2)}{r}

3r=r+7.2

r=\dfrac{7.2}{2}

r=3.6\ m

Hence, The radius of the sphere is 3.6 m.

3 0
3 years ago
If approximately equal volumes of an acid and a bace of a equal strength are combined the resulting solutin should have a pH of
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The answer is around 7.

As the acid and the base are of equal strength, they neutralize each other and the resulting solution is neutral (pH≈7).

Hope this helps you!

3 0
4 years ago
Read 2 more answers
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