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Elanso [62]
3 years ago
15

A wave has a period of 4 seconds. What is its frequency?

Physics
1 answer:
kobusy [5.1K]3 years ago
6 0

Answer: 0.25 Hz

Explanation:

F= 1/T= 1/4s= 0.25 Hz

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3 years ago
The amount of work done by two boys who apply 200 N of force in an
Aleksandr [31]

The amount of work done by two boys who apply 200 N of force in an unsuccessful attempt to move a stalled car is 0.

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<u>Explanation: </u>

Work done is the measure of work done by someone to push an object from its present position. We can also define work done as the amount of forces needed to move an object from its present position to another position. So the amount of work done is directly proportionate to the product of forces acting on the object and the displacement of the object.  

           \text { Work done }=\text { Force } \times \text { displacement }

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