3 years ago

Light is an electromagnetic wave and travels at the speed of 3.00 x 10^8 m/s

Physics

1 answer:

Over [174]3 years ago

6 0

I think the answer is 2 hope it helps

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What are the four system of measurement

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3 years ago

A camera takes a properly exposed photo with a 4.0 mm diameter aperture and a shutter speed of 1/1000 s. If the photographer foc

hoa [83]

Answer:

option E

Explanation:

given,

diameter = 4 mm

shutter speed = 1/1000 s

diameter of aperture = ?

shutter speed = 1/250 s

exposure time to the shutter time

$E V = log_2(\dfrac{N^2}{t})$

N is the diameter of the aperture and t is the time of exposure

now,

$log_2(\dfrac{N^2}{t_1})=log_2(\dfrac{N^2}{t_2})$

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hence , the correct answer is option E

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Earth’s mineral resources:

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Which of the following is least likely to be a scientific experiment?

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D should be the answer

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What is the magnitude of the net force ∑ F on a 1.9 kg bathroom scale when a 74 kg person stands on it?

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Answer:

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