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Ahat [919]
3 years ago
9

Why is a flower not a good blackbody radiator?

Physics
1 answer:
Alecsey [184]3 years ago
8 0

Answer:

A flower emits only visible light

A flower reflects much of the light that hits it

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A man pushes on a wall what does Newton third law say must happen
Verdich [7]
If a man pushes on a wall with some force then according to Newton's third law, wall will also apply force on man with same magnitude but opposite in direction.
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yulyashka [42]
Is this a serious question ?
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3 years ago
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A spinning coil of wire is what moves the cone in a speaker, producing the sound. True/False
Georgia [21]

False, the spinning coil of wire that moves the cone in a speaker does not produces sound.

<u>Explanation</u>:

The wire coil is an electromagnet that is fixed to speaker cone. A normal magnet attached to the back of the speaker cone.When audio is sent in the form of short bursts of electric current to the speaker cone through the wire.

A magnetic field is induced when electric current allowed to pass through the coil. This magnetic field is repelled by the other magnet. This repulsion cause the cone to move forward. In the absence of  electric current in the coil, the cone moves backward.

Thus sound waves are produced due to the resulting rarefaction and compression.  So it is not the spinning coil of wire but he permanent magnet that produces the sound.

5 0
4 years ago
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The air pressure inside a car tire is
Valentin [98]

Answer:

0.137m²

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Pressure = Force/Area

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Force = 41,500N

Pressure = 3.00atm

since 1atm = 101325.00 N/m²

3atm = 3(101325.00)

3atm = 303,975N/m²

Pressure = 303,975N/m²

Get the area

Area = Force/Pressure

Area = 41500/303,975

Area = 0.137m²'

Hence the surface area of the  inside of the tire is 0.137m²

7 0
3 years ago
As a car comes to a skidding stop, what happens to the car’s energy
Vladimir79 [104]
The answer is 3. Internal energy decrease
5 0
3 years ago
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