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3 years ago

Answer all please!!!!!!!!!!✌

Physics

2 answers:

Nina [5.8K]3 years ago

7 0

Answer:

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Explanation:

Alex73 [517]3 years ago

5 0

Answer:

the answer of 7th question

Make sure your dishwasher is full before you use it – running a half-empty dishwasher wastes large amounts of energy

Try to use a cooler temperature

Consider drying your clothes outside if it’s warm instead of using the dryer

Turn off the fan when you leave a room

Close your drapes or drop your window shades during the day.

Wash your clothes in cold water.

Wrap or cover foods and drinks in the refrigerator.

Always use the cold water faucet, unless you really want hot water.

the answer of 10th question

Static electricity is used in pollution control by applying a static charge to dirt particles in the air and then collecting those charged particles on a plate or collector of the opposite electrical charge. These devices are commonly known as “electrostatic precipitators.

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3 years ago

Check all of the following statements that describe velocity.

Nata [24]

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Choices A, B, and C are correct.

Explanation:

Let us look at each of the choices one by one:

A. It is a vector

Yes. Velocity is a vector, or it's a speed with direction.

B. It is the change in displacement divided by the change in time.

Yes. The velocity can be written as

$v = \dfrac{\Delta\bold{x}}{\Delta t}$

where $\bold{x}$ is the displacement—a vector quantity.

C. It can be measured in meters per second.

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D. It is the slope of the acceleration vs. time graph.

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Hence, only choices A, B, and C are correct.

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3 years ago

Answer all please!!!!!!!!!!✌​

Answer all please!!!!!!!!!!✌