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Vaselesa [24]
3 years ago
5

Which factors affect absorption and reflection of thermal energy? Check all that apply.

Physics
2 answers:
BigorU [14]3 years ago
7 0

Answer:

Correct answer is A and C

Explanation:

Absoption of thermal energy is process of transferring energy from one source to other source. Absoption depends on the wavelength of the radiation it means it depends on color and texture of the material.

Reflection:

Reflection is a phenomena in which radiation is incident from one medium to the surface of other medium and it come back to the same medium without entering in other medium. It  depends on the wavelength of the radiation it means it depends on color and texture of the material

For example:

If you wore dark color cloths then you will feel hot because dark color absorb more heat similarly if you wore light cloth then you will not feel hot because light color reflects more radiation.

V125BC [204]3 years ago
4 0
A and C, The Color and Texture of the material. 
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HELP PLZZZZZZ
ValentinkaMS [17]

Hi there!

We know that:

U (Potential energy) = mgh

We are given the potential energy, so we can rearrange to solve for h (height):

U/mg = h

g = 9.81 m/s²

m = 30 g ⇒ 0.03 kg

0.062/(0.03 · 9.81) = 0.211 m

8 0
3 years ago
How many nanoseconds are there in 1.90 yr ?<br> Express your answer using three significant figures.
shepuryov [24]

       (1.9 yr) x (365.24 day/yr) x (86,400 sec/day) x (10⁹ nsec/sec)

   =  (1.9 x 365.24 x 86,400 x 10⁹) nanosec

   =  6.00 x 10¹⁶ nanoseconds

5 0
3 years ago
A clarinetist, setting out for a performance, grabs his 3.070 kg clarinet case (including the clarinet) from the top of the pian
Cerrena [4.2K]

Answer:

the vertical acceleration of the case is 1.46 m/s

Explanation:

Given;

mass of the clarinet case, m = 3.07 kg

upward force applied by the man, F = 25.60 N

Apply Newton's second law of motion;

the upward force on the clarinet case = its weight acting downwards + downward force due to its downward accelaration

F = mg + m(-a)

the acceleration is negative due to downward motion from the top of the piano.

F = mg - ma

ma = mg - F

a = \frac{mg - F}{m} \\\\a = \frac{(3.07 \times 9.8) \ - \ 25.6}{3.07} \\\\a = 1.46 \ m/s^2

Therefore, the vertical acceleration of the case is 1.46 m/s²

4 0
3 years ago
Which is an example of negative acceleration?
Sonja [21]
A graph that starts from the top left decreasing to the bottom right
4 0
3 years ago
Read 2 more answers
Identify characteristics of energy from the Sun. Check all that apply.
xxMikexx [17]

Answer:

First one, third one, and fourth one

6 0
3 years ago
Read 2 more answers
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