2 years ago

Explain how buoyancy can defeat the force of gravity

Physics

1 answer:

Olenka [21]2 years ago

7 0

Answer:

Buoyancy causes things to float in water or liquid which appears to defeat the force of gravity. Hope this helps.

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A van is traveling with an initial velocity of 12 m/s. The driver takes a time of 45 seconds to speed up to a velocity of 20 m/s

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Initial velocity=u=12m/s
Final velocity=v=20m/s
Time=t=45s

$\\ \rm\hookrightarrow Acceleration=\dfrac{v-u}{t}$

$\\ \rm\hookrightarrow Acceleration=\dfrac{20-12}{45}$

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Now

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alukav5142 [94]

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Explanation:

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2 years ago

When an object slides across the floor, it is slowed down by friction and the floor surface gets warmer. what energy conversion

OverLord2011 [107]

The movement of the object is considered to be kinetic energy while the object getting warmer indicates that there is thermal (heat) energy formed.

Based on this, as the object slides across the floor, friction slows down this motion and the object becomes warmer as kinetic energy is converted into thermal energy.

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2 years ago

Charge is distributed uniformly on the surface of a large flat plate. the electric field 2 cm from the plate is 30 n/c. the elec

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The electric field produced by a large flat plate with uniform charge density on its surface can be found by using Gauss law, and it is equal to
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where
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$\epsilon_0$ is the vacuum permittivity

We see that the intensity of the electric field does not depend on the distance from the plate. Therefore, the strenght of the electric field at 4 cm from the plate is equal to the strength of the electric field at 2 cm from the plate:
$E=30 N/C$

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2 years ago

Explain how buoyancy can defeat the force of gravity​

Explain how buoyancy can defeat the force of gravity