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Effectus [21]
3 years ago
9

ASAP do all will give 25 per person pls will mark brainiest

Physics
1 answer:
neonofarm [45]3 years ago
4 0

Answer:

1) true

2) false

3) false

4) true

5) true

6) true

7) true

8) false

9) true

10) false

i think these are correct if im wrong on a few im sorry. Hope this helps at least a bit. And if i do get some wrong you know just to pick the opposite answer.

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How does solar energy work
xz_007 [3.2K]

Answer:

When the sun shines onto a solar panel, energy from the sunlight is absorbed by the PV cells in the panel. This energy creates electrical charges that move in response to an internal electrical field in the cell, causing electricity to flow.

4 0
3 years ago
"You can't see the forest for the trees" might seem an appropriate analogy for astronomers attempting to determine the shape of
denpristay [2]

Some of the techniques used by astronomers to determine the type of galaxy in which we live are:

  • radio,
  • optical,
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  • x-ray astronomy

<h3>What is Astronomy?</h3>

This refers to the study of heavenly bodies and space and other things that space is made up of.

Hence, we can see that the reason why it is so difficult to determine the shape of our galaxy is that astronomers can only infer its presence from the motions of stars in the galaxy, and a precise shape is difficult to be determined.

Read more about astronomy here:

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5 0
2 years ago
Velocity of a wave is the. (a) Wavelength x frequency (b) Wave number x frequency (c) Time period x phase (d) None
Elden [556K]

Answer:

option (a)

Explanation:

Wavelength is defined as the distance traveled by the wave in one complete oscillation.

The number of oscillations completed in one second is called frequency.

The relation for the wave velocity is given by

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4 0
3 years ago
What are the chemical properties of elements related to?
MAVERICK [17]
<span>The chemical properties of ANY atom are found in how they react with other elements.

A. An element's symbol - Nothing to do with reactions

B. The average atomic mass -The mass doesn't react

C. The number of electrons that occupy the outer shell - the only part of the electrons that move, SO they are involved in the reactions (answer)

D. The total number of electrons - The inner electrons cannot move from the atom unless there is ALOT of energy given to them, so these cannot react and would not contribute to the chemical properties.</span>
3 0
4 years ago
A man who weighs 75kg on the surface of the earth whose mass is 6*10^24kg. If the radius of earth is 6480km ,calculate the force
Step2247 [10]

Answer:

but I don't know what the answesorryr

3 0
3 years ago
Read 2 more answers
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