PHYSICS MIDDLE SCHOOL

Which describes the properties reflection, absorption, and transmission when a light is shinning on the oval end of a silver spoon?A.
It reflects a lot of light, transmits almost no light, and absorbs some light.

B.
It reflects some light, transmits some light, and absorbs no light.

C.
It reflects all light, transmits all light, and absorbs some light.

D.
It reflects almost no light, transmits almost no light, and absorbs almost no light.

Answers

Answer 1
Answer: Which describes the properties reflection, absorption, and transmission when a light is shinning on the oval end of a silver spoon?The correct answer is C. It reflects all light, transmits all light, and adsorbs some light.
Hope I helped, and good luck!

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An isotope of carbon has 6 protons and 8 neutrons.How is this isotope written symbolically?

A. C-2
B. C-6
C. C-8
D. C-14

Answers

The answer is D. C-14.

Which object moves in simple harmonic motion?\a stretched rubber band with an mass
b rolling ball going down a hill
c moving car
d orbiting satellite

Answers

Answer:Stretched rubber band with an mass

Explanation:

Simple harmonic motion requires a restoring force.

Simple harmonic motion should be periodic.

Option A:

When a rubber band is stretched,the internal forces of the rubber band pulls the band inside.So,internal forces are the restoring forces in a rubber band.

The motion is periodic as well since the the rubber band makes to an fro motion expanding ans contracting.

So,this performs SHM.

Option B:

There is no restoring force and no periodicity.

So,this is not SHM.

Option C:

There is no restoring force and no periodicity.

So,this is not SHM.

Option D:

There is periodicity but no restoring force.

So,this is not SHM.

Can you guy pleas answer this questions4. Would you expect a substance to be a solid, liquid, or gas at absolute
zero? Explain your answer.
5. Describe what happens, at the molecular level, during melting.
6. Describe what happens, at the molecular level, when a substance boils.
7. What is the most common phase of matter in the universe?
8. What is plasma? Where can you find plasma?

Answers

Lets start off with know body knows. But say that someone did know lat just speculate, at this very low temperature things can become very strange. things that cannot be explained. That is your literal best answer. If you want something else watch "The coldest place in the universe"

What is the difference between a permanent magnet and a temporary magnet

Answers

A permanent magnet does not loose its magnetism easily. It can only be lost by permanent destruction say by fire. Example of this is magnetism from a bar magnet. This magnetism is not induced by say electric current.

A temporary magnet looses its magnetism easily. The magnetism is gained or loosed for the action of carrying out a particular task. This magnetism can be achieved by the gain or loss by passing of electric current over say an iron core.    
Pernament magnet is one that retains its magnetic properties for a long period of time. Temporary megnet only maintains its magnetism while in a magnetic field produced by permanent magnet or electric current.

Explain how geographic features can cause local winds?

Answers

If there is a dip in the land the wind goes into there then the wind is trapped in the bowl shaped transformed so the wind is stronger inside the bowl shaped area than the area outside of the creator.

Answer:

All wind is caused by the uneven heating of Earth's surface, which sets convection currents in motion. Convection currents on a large scale cause global winds; convection currents on a small scale cause local winds.

Explanation:

Your 20-kg brother Mickey is on a see-saw. If you have a massof 50-kg and are 2 meters away from the center of the see-
saw, how far out would Mickey have to sit if he wants to apply
the same force onto you that you apply onto him? meters

Answers

To apply the same force as the person, the brother have to sit at a distance of 5 m.

What is meant by torque ?

Torque is defined as the rotational analogue of force. It is the cross product of force and the displacement of the object.

Here,

Mass of the person, m₁ = 50 kg

Mass of the brother, m₂ = 20 kg

Distance of the person, d₁ = 2 m

For the see-saw to get balanced, the torque applied by the two persons each side must be equal.

τ₁ = τ₂

where τ₁ is the torque applied by the person and τ₂ is that applied by the brother.

So, F₁d₁ = F₂d₂

m₁g x d₁ = m₂g x d₂

m₁d₁ = m₂d₂

Therefore, distance of the brother,

d₂ = m₁d₁/m₂

d₂ = 50 x 2/20

d₂ = 5 m

Hence,

To apply the same force as the person, the brother have to sit at a distance of 5 m.

To learn more about torque, click:

brainly.com/question/30719994

#SPJ2

Answer:

5

Explanation:
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