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IRISSAK [1]
3 years ago
14

Apparent brightness depends on which two properties?i’ll give brainlist?:)

Physics
2 answers:
Norma-Jean [14]3 years ago
8 0

Answer:

D

Explanation:

I just did it on a p e x

Eddi Din [679]3 years ago
6 0

Answer:

D

Explanation:

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As the kinetic energy of an object increases, so does the _________ energy produced. A) heat B) light C) atomic D) potential
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Answer:

A) heat

Explanation:

As kinetic energy increases, so does the heat energy produced. The faster the molecules move, the more heat that is generated.

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3 years ago
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Radio waves have the longest wavelengths
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4 years ago
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Physical Science - 02.05 - Question #3
Reika [66]

Answer:

1. They should not trust this study. 2. Pseudoscience.

Explanation:

Because they drank the water and after 24 hours, they said that it was gone. Head aches go away sooner than that. Another reason is that some people could have lied about having a headache just so they could have the water or their headache could have gone away before they drank the water.

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3 years ago
A future use of space stations may be to provide hospitals for severely burned persons. It is very painful for a badly burned pe
inessss [21]

Answer:

1.5min

Explanation:

To solve the problem it is necessary to take into account the concepts related to Period and Centripetal Acceleration.

By definition centripetal acceleration is given by

a_c = \frac{V^2}{r}

Where,

V = Tangencial velocity

r = radius

With our values we know that

a_c = \frac{V^2}{r}

\frac{V^2}{r} = \frac{1}{10}g

Therefore solving to find V, we have:

V = \sqrt{\frac{1}{10}g*r}

V = \sqrt{\frac{9.81*200}{10}}

V = 14m/s

For definition we know that the Time to complete are revolution is given by

t = \frac{Perimeter}{Speed}

t = \frac{2\pi R}{V}

t = \frac{2\pi * 200}{14}

t = 1.5min

6 0
3 years ago
Red light has a wavelength of (7. 21x10^7)m. What is the frequency of this light?
Flura [38]

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TO answer this question i need wave speed

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