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otez555 [7]
3 years ago
14

How are heat and light waves produced on and in the sun?

Physics
2 answers:
enyata [817]3 years ago
8 0
All of the electromagnetic energy radiated from the sun (and from
other stars) is the product of nuclear fusion in its core.
lesya [120]3 years ago
3 0
Heat waves are the radiation released from the Sun, the energy and the light is what is visible of this emission of energy.
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What do you think would happen if the voltage were swept very quickly?
amm1812
Whatever depends on the voltage would change very quickly i guess
8 0
3 years ago
A human hair is approximately 57 um in di-
Pie

Answer: The diameter of 57 um is equal to 5.7*10^-5 in meter.

Explanation: 1 micrometer is equal to 1*10^-6 meters.

We use this conversion to get the answer, we that 57 and we multiply it by 1*10^-6

8 0
3 years ago
I don't know the answer but I think that it is yes I just don't want to get it wrong
mrs_skeptik [129]
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8 0
3 years ago
Read 2 more answers
Two sites are being considered for wind power generation. In the first site, the wind blows steadily at 7 m/s for 3000 hours per
slavikrds [6]

Answer:

E.year₂ > E.year₁  (Second site is better)

Explanation:

Given data

V_{1}=7 m/s\\Time_{1}=3000 hours/year\\V_{2}=10m/s\\Time_{2}=1500hours/year

The  power generation is the time rate of kinetic energy which can be calculated as:

Power=ΔKE=m×V²/2

Regarding  that m ∝ V.Then

Power ∝ V³ ⇒ Power=constant×V³

Since ρa is constant for both sides and Area is the same as same wind turbine is used

For First site

Power_{1}=const.V^3\\Power_{1}=const.(7m/s)^3\\Power_{1}=const.343Watt\\

For second site

Power_{2}=const.V_{2}^3\\Power_{2}=const.(10m/s)^3\\Power_{2}=const.1000W

Calculating energy generation per year for each of two sites

E.year=Power×Operation time per year

For First site

E.year₁=Power₁×Operation time₁ per year

E_{year1}=const.*343W*3000\\E_{year1}=const.1029000(W.hour/year)

For Second site

E.year₂=Power₂×Operation time₂ per year

  E_{year2}=const.*1000W*1500\\E_{year2}=const.1500000(W.hour/year)

So

E.year₂ > E.year₁  (Second site is better)

3 0
3 years ago
Read 2 more answers
A rotating turbine generates electricity to power a blow dryer what is the energy transformation
liraira [26]

Electric energy is transformed into mechanical energy of the dryer's engine and heat of the dryer's heater unit.

4 0
4 years ago
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