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3 years ago

13

On a hot summer day several swimmers decide to jump into a river. They step off the bridge and strike the water at 1.5s later. I

gnore air resistance. What is the height of the bridge?
I did it but I don’t know if it’s right

1 answer:

xxTIMURxx [149]3 years ago

6 0

That is right because base*length is how you get the height

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Answer: A)

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This force is given below as

F=qvB*sinθ

F = force experienced by charge.

q = magnitude of electronic charge

v = speed of electron

B= strength of magnetic field

θ = angle between magnetic field and velocity.

What defines the force exerted on the charge is the angle between the field and it velocity.

If magnetic field is parallel to velocity, then it means that θ=0° which means sin 0 = 0, which means

F = qvB * 0 = 0.

The charge being at rest has nothing to do with the angle between magnetic field strength and velocity.

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Veseljchak [2.6K]

Answer:

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Explanation:

maximum wavelength, λ = 542 nm = 542 x 10^-9 m

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$W_{o}=\frac{hc}{\lambda }$

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