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Ann [662]
3 years ago
5

Light incident upon a pane of glass slows down in passing through the glass, Does it emerge at a slower speed or at its initial

speed?
Physics
1 answer:
Simora [160]3 years ago
4 0

Answer:

It will emerge at its initial speed not a slower speed.

Explanation:

It will emerge at the initial speed because the medium at the point of emergence is the same as the medium before incidence.

Light moves at a constant speed in any particular medium. Hence, the speed of light in air is constant in air and the speed of light in glass is constant in glass.

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The temperature of a black body is 500 and its radiation is of wavelength 600 . If the number of oscillators with energy is 100
stiks02 [169]

Answer: An equation is missing in your question below is the missing equation

a) ≈ 8396

b) 150 nm/k

Explanation:

<u>A) Determine the number of Oscillators in the black body</u>

number of oscillators = 8395

attached below is the detailed solution

<u>b) determine the peak wavelength of the black body </u>

Black body temperature = 20,000 K

applying Wien's law / formula

λmax = b / T  ------ ( 1 )

T = 20,000 K

b = 3 * 10^6 nm

∴  λmax = 150 nm/k

4 0
2 years ago
Please Please Please help on these 3 questions :) 20 POINTS!! - NO LINKS PLEASE
GenaCL600 [577]

Answer:

Catapult on the ground: Normal, gravity

Catapult (I'm assuming launching marshmallow): Reaction of Force Applied

Marshmallow: Force Applied

Explanation:

This is the forces that act on a stationary object and a launched object. The catapult may also experience a force friction if your teacher is taking a more practical sense.

3 0
3 years ago
WHERE IS THE HYPOTHESIS IN THIS PASSAGE?
yuradex [85]

Answer:

pretty sure for this one, "if the density affected the liquid's ability to retain heat."

Explanation:

a hypothesis should be in "if, then, because.." format, and while this bit of the passage doesnt include all three, it does include one! that bit of the passage would be an incomplete hypothesis.

4 0
3 years ago
A neon light consists of a glass tube with metal wires at each end. When connected to a high-voltage source, the gas glows.
Pavlova-9 [17]


C

Glass is an insulator
4 0
3 years ago
Read 2 more answers
please explain!! 15. You want to calculate the displacement of an object thrown over a bridge. Using -10 m/s2 for acceleration d
qwelly [4]

I will be making the assumption that you aren't actually really throwing the object over a bridge but rather dropping it as no initial velocity is actually given, which is required to do this problem. This will mean that initial velocity will be zero in this case.

First off, let's state all of the information we are given (the five kinematic quantities)

v₁ = 0 m/s

v₂ = cannot be determined

Δd = ?

Δt = 8 seconds

a (g) = 10 m/s² [down]

Now analyzing what we have, we can determine that we have 3 given quantities, 1 we must solve for, and 1 that cannot be found given our current information.

The five kinematic equations are useful because they all contain four kinematic quantities, and with different combinations too. In this case, we have three (v₁, Δt, a) and have to solve for Δd. The kinematic equation that fits with this would be:

Δd = v₁Δt + 0.5(a)(t)²

We can plug in our given values now.

Δd = 0 m/s(8 s) + 0.5(10 m/s²)(8 s)²

Δd = 0.5(10 m/s²)(8 s)²

Δd = <u>3</u>20 m

Therefore, the total displacement of the object would have to be 300m. (Due to significant digit rules)

7 0
3 years ago
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