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ololo11 [35]
3 years ago
8

These four surfaces are opaque; that is they reflect or absorb certain rays of light determine the color

Physics
1 answer:
masya89 [10]3 years ago
4 0
In the first figure, the surface absorbs all colors except for green light, which is reflected: so, the surface will appear as green to our eyes, because green is the only color which is reflected by that surface.

Similarly, in the  second figure, the surface absorbs all colors except for blue, and so the surface will appear blue to our eyes.

In the third figure, the surface absorbs all colors, so it will appear black to our eyes (because no colors are reflected, and black=absence of colors).

In the fourth figure, all colors are reflected: this means the surface will appear white to our eyes (white= sum of all colors).
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How does work affect energy between objects so it can cause a change in the form of energy? Work transfers energy. Work changes
IceJOKER [234]

'Doing work' is a way of transferring energy from one object to another, energy is transferred when a force moves through a distance.

If i explain with formula

Work done (J) = Energy transferred (J)

So more energy, more work done bc u transferred more energy to move the object and doing the work. and if you only use a little of energy, the work done also only a little.

4 0
3 years ago
A cryogenic vacuum pump works by condensing vapors onto some absorbent medium. This is an efficient and clean way to pump a syst
Julli [10]

Answer:  Temperature in Fahrenheit is 577.4

Explanation:

The conversion factor for converting celcius to Fahrenheit is:

F=\frac{9}{5}\times C+32

where F = temperature in Fahrenheit

C = Temperature in Celcius

Given : Temperature difference in Celcius = 303^0C

Putting in the values we get:

F=\frac{9}{5}\times 303+32

F=577.4

Thus the answer in Fahrenheit is 577.4

6 0
2 years ago
A wave with low energy will also have
yKpoI14uk [10]
Low frequency, low amplitude, or both.
4 0
3 years ago
As the resistance of a circuit increases, the current will
Natalija [7]

As the resistance of a circuit increases, the current will decreases.

<h3>What is ohm’s law?</h3>

Ohm's law claims that the voltage across a conductor is directly proportional to the current flowing through it.

When all physical parameters and temperature are constant,

Ohm's law claims that the voltage across a conductor is directly proportional to the current flowing through it.

This current-voltage connection may be expressed mathematically by Ohm's law as;

V=IR

If the voltage is constant, the resistance of the circuit will be inversely proportional to the current.

Hence,as the resistance of a circuit increases, the current will decreases.

To learn more of the ohm's law, refer to the link;

brainly.com/question/796939

#SPJ4

5 0
2 years ago
In one experiment, a student rolls a 2 kg ball such that it collides with a wall with a force of 10,000 N. In a second experimen
Brums [2.3K]

Answer:

(c) The wall exerts a greater force on the 2 kg ball than on the 5 kg ball since the force from the wall on each ball is equal to the force that each ball exerts on the wall.

Explanation:

According to Newton's third law of motion,"action and reaction are equal and opposite".

If a 2 kg ball exerts a force of 10,000 N on a wall, the wall will also exert a force of 10,000 N on the 2 kg ball but in opposite direction.

Similarly, If a 5 kg ball exerts a force of 5,000 N on a wall, the wall will also exert a force of 5,000 N on the 5 kg ball but in opposite direction.

Regardless of mass of the ball, the wall will exert equal force with which the ball collide with it.

Therefore, the wall exerts a greater force on the 2 kg ball than on the 5 kg ball since the force from the wall on each ball is equal to the force that each ball exerts on the wall.

8 0
3 years ago
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