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2 years ago

Michael is taking a 500 mile road trip if he is 48% of the way there how many miles has he driven

Physics

2 answers:

Tju [1.3M]2 years ago

6 0

Answer

240

Explanation:

All you have to do is 500 times the decimal form of 48% which is .48 and you will get your answer.

You could also do 500 times 48 divided by 100

Elan Coil [88]2 years ago

5 0

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Answer:

Explanation:

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If a light Ray is reflected off the shiny surface at 170 degrees at what angle did the light-ray first strike the surface

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2 years ago

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Red light of wavelength 630 nm passes through two slits and then onto a screen that is 1.4 m from the slits. The center of the 3

VARVARA [1.3K]

Answer:

Part a)

$f = 4.76 \times 10^{14} Hz$

Part b)

$d = 3.48 \times 10^{-4} m$

Part c)

$\theta = 0.311 degree$

Explanation:

Part a)

As we know that the speed of light is given as

$c = 3 \times 10^8 m/s$

$\lambda = 630 nm$

now the frequency of the light is given as

$f = \frac{c}{\lambda}$

so we have

$f = \frac{3 \times 10^8}{630 \times 10^{-9}}$

$f = 4.76 \times 10^{14} Hz$

Part b)

Position of Nth maximum intensity on the screen is given as

$y_n = \frac{n\lambda L}{d}$

so here we know for 3rd order maximum intensity

$y_3 = 0.76 cm$

n = 3

L = 1.4 m

$0.76 \times 10^{-2} = \frac{3(630 \times 10^{-9})(1.4)}{d}$

$d = 3.48 \times 10^{-4} m$

Part c)

angle of third order maximum is given as

$d sin\theta = 3 \lambda$

$3.48 \times 10^{-4} sin\theta = 3(630 \times 10^{-9})$

$\theta = 0.311 degree$

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2 years ago

A boy jumps from a wall 3m high. What is an estimate of the change in momentum of the boy when he lands without rebounding?

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The answer is D. Because the boy jump 3 high

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