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AleksandrR [38]
2 years ago
14

Why is a white car an example of a poor blackbody radiator?

Physics
1 answer:
frosja888 [35]2 years ago
7 0

I don't know sorry about that

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Light passes through a greenhouse's glass walls due to the process of _____.
likoan [24]

Answer:

B..

Explanation:

4 0
3 years ago
The sun is the ___________ of all the energy that moves though food
Marta_Voda [28]


The sun is the <em><u>source</u></em> of all the energy that moves through food. It helps the plants to grow which in turn become food that we and other animals eat.

Hope it helps :) 

3 0
3 years ago
Read 2 more answers
Two lasers are shining on a double slit, with slit separationd.Laser 1 has a wavelength of d/20, whereas laser 2 has a wavelengt
Sophie [7]

Answer:

a) laser 1 has the maximum closest to the central maximum

b) y₂ –y₁ = L 1.66 10⁻²

Explanation:

a), B1, B2)  The expression that describes the constructive interference for a double slit is

            d sin θ = m λ

The pattern is observed on a screen

            tan θ = y / L

Since the angles are very small

           tan θ = sin θ / cos θ = sin θ = y/L

 

           d y / L = m λ  

In this case the laser has a wavelength

           λ ₁ = d/20

We substitute

            d y / L = m d / 20

            m = 1

            y₁ = L / 20

For the laser 2 λ ₂= d / 15

             y₂ = L / 15

When examining the two expressions, laser 1 has the maximum closest to the central maximum

b) the difference between the two patterns is

            y₂- y₁ = L (1/15 - 1/20)

           y₂ –y₁ = L 1.66 10⁻²

C) laser 1 second maximum

          y₁ ’= 2 L / 20

          y₁ ’= L 0.1

Laser 2 third minimum

To have a minimum, the equation must be satisfied

           d sin θ = (m + ½) λ  

           d y / L = (m + ½) λ  

           d y / L = (m + ½) d / 15

           y = L (m +1/2) / 15

           m = 3

           y₂’= L (3 + ½) / 15

           y₂’= L 0.2333

The difference is

           y₁ ’- y₂’ = L (0.1 - 0.2333)

          y₁ ’–y₂’ = L (-0.133)

3 0
3 years ago
Vinegar (C2H4O2) and baking soda (NaHCO3) react to form sodium acetate, water, and carbon dioxide. C2H4O2 + NaHCO3 ? How many to
aliya0001 [1]

The total oxygen atoms that are exprected in the vinegar and baking soda reaction is three oxygen atoms.


Answer: B. 3




why;live

5 0
3 years ago
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g During a collision with a wall, the velocity of a 0.4 KgKg ball changes from 25 m/sm/s towards the vall to 12 m/sm/s away from
bogdanovich [222]

Answer:

F = 10.8N

Explanation:

Given the mass m = 0.4kg, v1 = 25m/s, v2 = 12m/s and t =0.5s

From Newtown's second law of motion the average force can be found. This law states that the product of the force experienced by a body and the time t of the force acting on the body is equal to the change in momentum of the body. Mathematically it can be stated as follows

F×t = m(v2 – v1)

F = m(v2 – v1)/t = 0.4(25 – 12)/0.5 = 10.8N

5 0
3 years ago
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