2 years ago

Which of the following describes the relationship between the weight of fluid

Physics

1 answer:

ioda2 years ago

8 0

The answer is archimedes principle

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If you double the pressure on the surface of a can of water, the buoyant force on a stone placed in that water will

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The buoyant force won't change.

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3 years ago

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marin [14]

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2 years ago

Calculate the kinetic energy in joules of a 1200 kg automobile moving at 18 m/s .

vodka [1.7K]

Answer:

194,400 joules of kinetic energy.

Explanation:

Remember that to calculate the Kinetic energy you need to use the next formula:

$Ke=\frac{1}{2}Mass*Velocity^2$

We know that Mass= 1200 kg and velocity is 18m/s, so we insert those values into the formula:

$Ke=\frac{1}{2}Mass*Velocity^2\\Ke=\frac{1}{2}1200kg*(18m/s)^2\\Ke=194,400 joules$

So the kinetic energy of a car moving at 18m/s with a mass of 1200 kg would be 194,400 joules.

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3 years ago

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a bicycle uniformly from rest at time t the velocity of the bicycle is v at what time will the bicycle have a velocity of 4v

sesenic [268]

Here

Acceleration and initial velocities are constant.

According to first equation of kinematics.

$\\ \sf\longmapsto v=u+at$

$\\ \sf\longmapsto v=0+at$

$\\ \sf\longmapsto v=at$

$\\ \sf\longmapsto v\propto t$

Time was t at velocity v
Time will be 4t at velocity 4v

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2 years ago

On what two properties of a material does its density depend on?

ExtremeBDS [4]

Density of a material depends upon it's mass & volume.

You can calculate it by: Density = Mass / Volume

Hope this helps!

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3 years ago