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2 years ago

An Earth satellite is in a circular orbit at an altitude of 500 km.

Physics

1 answer:

Dafna1 [17]2 years ago

8 0

Answer:

Speed Unchanged.

Explanation:

As work is defined as a product of force over a distance. If the distance in altitude is constant = 500km, there's 0 change in distance and force, no work would be done by the gravitational force.

Since potential energy of the satellite is unchanged, unless there's additional internal energy source, the kinetic energy would remain unchanged, so would its speed.

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Can the kinetic energy of an object be negative? Can the potential energy of an object be negative? Can a potential energy funct

IceJOKER [234]

Answer:

Kinetic energy cannot be negative

potential energy is a reference dependent quantity and it can be positive as well as negative both

Since potential energy is defined only for conservative force so it can not be found for friction force

Explanation:

Kinetic energy of an object is given by the formula

$KE = \frac{1}{2}mv^2$

here we know that

m = mass of object that can not be negative

v = speed of the object and since its square is given here so it can not be negative

so Kinetic energy is always positive

potential energy is given as the energy due to the virtue of the position of object

so it is

$\Delta U = -\int F.dr$

so potential energy is a reference dependent quantity and it can be positive as well as negative both

Since potential energy is defined only for conservative force so it can not be found for friction force

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3 years ago

A square sheet of rubber has sides that are 20 cm long. If you stretch it so that the area of the rubber is four times larger, h

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Answer:

400

Explanation:

Trust me its correct

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2 years ago

Read 2 more answers

a force is applied to an object at rest with a mass of 100 kg. the same force is applied to an object at rest with a mass of 1 k

Dafna1 [17]

The object with the mass ok 1kg will move more quickly because it is lighter than the 100kg object

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3 years ago

you have a allowance to spend on lunch this week. you will spend the same amount each day,and you get to keep whatever is left a

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Answer:

y=-3.2x+18.5 Hope This Helps Tell me if you need step by step

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2 years ago

How can you remember meiosis 1 and meiosis 2

Marianna [84]

Answer:

Once you know the differences between meiosis 1 and 2, you will remember it easier.

Explanation:

Meiosis 1 starts with 1 diploid cell Meiosis 2 starts with 2 haploid cells,

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3 years ago