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melomori [17]
4 years ago
12

3)What are the "bright stars" that seem to move against the sky? Are they really stars? What are they?

Physics
1 answer:
WINSTONCH [101]4 years ago
6 0
I think they’re called meteors?
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Which wavelengths of light drive the highest rates of photosynthesis?
wariber [46]

Answer:

400-450 nm and 670-680 nm

Explanation:

Which wavelengths of light drive the highest rates of photosynthesis?

400-450 nm and 670-680 nm

Light in the violet-blue and red portions of the spectrum is most effective in driving photosynthesis

photosynthesis is the process through which green plant manufacture there food through sunlight, they synthesize nutrient in the this process through chlorophyll thereby releasing oxygen as a bye-product. a spectrum contains 7 colours combined . the violet-blue and red portions of the spectrum is most effective

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4 years ago
In an internal combustion engine, the gas vapor/air mixture enters the cylinder during the _____ stroke. intake compression powe
grigory [225]
The cylinder takes in the gas/air mixture during the intake stroke.
The cylinder compresses the gas/air mixture during the compression stroke.
The gas/air mixture burns and generates power during the power stroke.
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3 years ago
A hot plume of mantle material, which may extend to the core-mantle boundary, produces a volcanic region a few hundred kilometer
Fantom [35]

Answer: Hot spot

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5 0
3 years ago
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According to the definition of power, a powerful person is able to do which of the following?
Nadya [2.5K]
Power is energy per unit time. If he is powerful, it means he can spend more energy in short span of time, so option C ( i.e. <span>do more work in less time) is correct.</span>
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3 years ago
Which device conferts electric energy into mechanical energy
Phantasy [73]

An electric motor converts electrical energy into mechanical energy.

What is electric motor?

An electric motor is an electrical machine that converts electrical energy into mechanical energy.

A generator is  mechanically identical to an electric motor, but operates with a reversed flow of power

Hence  it will convert mechanical energy into electrical energy.

Some applications of electric motor are:

Industrial fans, blowers and pumps, machine tools, household appliances, power tools, vehicles, and disk drives.

Learn more about electric motor :brainly.com/question/15409160

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4 0
2 years ago
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