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Anna71 [15]
3 years ago
12

A laser printer uses a laser beam to “burn” images onto paper. a)True b)False

Physics
2 answers:
anastassius [24]3 years ago
5 0
The answer is false because the laser doest burn the images onto the paper.
polet [3.4K]3 years ago
3 0
In laser printer, laser beam produces an image on a drum by altering the charge on the drum (where it hits), it doesn't burn images onto paper.

In short, Your Answer would be "False"

Hope this helps!
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An astronaut is a short distance away from her space station without a tether rope. She has a large wrench. What should she do w
Hitman42 [59]

Answer: b. Throw it directly away from the space station.

Explanation:

According to <u>Newton's third law of motion</u>, <em>when two bodies interact between them, appear equal forces and opposite senses in each of them.</em>  

To understand it better:  

Each time a body or object exerts a force on a second body or object, it (the second body) will exert a force of equal magnitude but in the opposite direction on the first.  

So, if the astronaut throws the wrench away from the space station (in the opposite direction of the space station), according to Newton's third law, she will be automatically moving towards the station and be safe.

3 0
3 years ago
Light with a wavelength of 400 nm strikes the surface of cesium in a photocell, and the maximum kinetic energy of the electrons
Firdavs [7]

Answer:

The longest wavelength of light that is capable of ejecting electrons from that metal is 1292 nm.

Explanation:

Given that,

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Energy E=1.54\times10^{-19}\ J

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Using formula of energy

E = \dfrac{hc}{\lambda}

\lambda=\dfrac{hc}{E}

Put the value into the formula

\lambda=\dfrac{6.63\times10^{-34}\times3\times10^{8}}{1.54\times10^{-19}}

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8 0
3 years ago
Which defintion of heat is most scientifically accurate
lukranit [14]
Hi there

Definition of heat

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6 0
2 years ago
The image messed up but you get the point. Don't be mean and just answer to get the points, please and thank you.
Katarina [22]

Answer:

Answer is A, it will pass through to focal point after reflecting.

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I had the same question in a test, Sorry that you had to do this question in middle school.

4 0
3 years ago
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