2 years ago

Which of the following is known as the use of a wave?

Physics

1 answer:

TiliK225 [7]2 years ago

7 0

Answer:

Explanation:

Waves involve the transport of energy without the transport of matter. In conclusion, a wave can be described as a disturbance that travels through a medium, transporting energy from one location (its source) to another location without transporting matter.

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Answer:

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Any good and bad insulators of thermal energy, hot or cold, and why?

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Una pelota de béisbol es arrojada verticalmente hacia arriba desde la azotea de un edificio con una velocidad de 20m/s. Calcular

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2 years ago

You're having a hard time pushing a refrigerator across the kitchen floor. The force of your own push is 993 N. The force of fri

Helen [10]

Answer:

The acceleration of the refrigerator is $a= 0.056 ms^{-2}$

Explanation:

The expression of the equation of the net force acting on the refrigerator is as follows;

F-f= ma

Here, F is the applied force, f is the force of friction, m is the mass and a is the acceleration.

It is given in the problem that you're having a hard time pushing a refrigerator having mass 355 kg across the kitchen floor. The force of your own push is 993 N. The force of friction opposing your own push is 973 N.

Put F= 993, f= 973 N and m = 355 kg in the above expression of the equation to calculate the acceleration of the refrigerator.

993 - 973 = (355)a

20 = 355 a

$a= 0.056 ms^{-2}$

Therefore, the acceleration of the refrigerator is $a= 0.056 ms^{-2}$ .

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4. When setting goals, you should do everything EXCEPT which of the following?

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