2 years ago

1. Describe three ways that the transverse waves of the electromagnetic spectrum are used in

1 answer:

8 0

Answer: The x-ray beams are narrowed and shaped with a collimator in the treatment machine head before delivery to the patient.

Explanation:

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2 years ago

What is the magnitude (size) and direction of the cumulative force acting on the car shown in the picture above?

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5070

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3 years ago

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ivolga24 [154]

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2 years ago

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3 years ago

When you push a child on a swing, your action is most effective when your pushes are timed to coincide with the natural frequenc

OleMash [197]

Answer:

$T = 4.48 s$

we can see that this time period is independent of the mass of the child so answer would be same if the child mass is different

Explanation:

Natural frequency of a simple pendulum of L length is given as

$f = \frac{1}{2\pi}\sqrt{\frac{g}{L}}$

so the time period of the oscillation is given as

$T = 2\pi \sqrt{\frac{L}{g}}$

so we will have

$L = 5 m$

$T = 2\pi\sqrt{\frac{5}{9.81}}$

$T = 4.48 s$

also from above formula we can see that this time period is independent of the mass of the child so answer would be same if the child mass is different

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3 years ago