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mote1985 [20]
3 years ago
12

A pulse of red light and a pulse of blue light enter a glass block normal to its surface at the same time. after passing through

the block, which pulse exits first?
Physics
2 answers:
pshichka [43]3 years ago
7 0
I believe the red light would go faster than the blue.
kenny6666 [7]3 years ago
6 0
The red light as it is a faster light due to its color.

If this was the appropriate answer make sure to mark as the brainliest!
-procklown
You might be interested in
The driver of a car slams on the brakes, causing the car to slow down at a rate of
sdas [7]

Answer:

A. The time taken for the car to stop is 3.14 secs

B. The initial velocity is 81.64 ft/s

Explanation:

Data obtained from the question include:

Acceleration (a) = 26ft/s2

Distance (s) = 256ft

Final velocity (V) = 0

Time (t) =?

Initial velocity (U) =?

A. Determination of the time taken for the car to stop.

Let us obtain an express for time (t)

Acceleration (a) = Velocity (V)/time(t)

a = V/t

Velocity (V) = distance (s) /time (t)

V = s/t

a = s/t^2

Cross multiply

a x t^2 = s

Divide both side by a

t^2 = s/a

Take the square root of both side

t = √(s/a)

Now we can obtain the time as follow

Acceleration (a) = 26ft/s2

Distance (s) = 256ft

Time (t) =..?

t = √(s/a)

t = √(256/26)

t = 3.14 secs

Therefore, the time taken for the car to stop is 3.14 secs

B. Determination of the initial speed of the car.

V = U + at

Final velocity (V) = 0

Deceleration (a) = –26ft/s2

Time (t) = 3.14 sec

Initial velocity (U) =.?

0 = U – 26x3.14

0 = U – 81.64

Collect like terms

U = 81.64 ft/s

Therefore, the initial velocity is 81.64 ft/s

7 0
3 years ago
If you could help me out that would be fantastic.?!!!
Volgvan
It's either C. Or B.
3 0
3 years ago
What are some changes that can be caused. By sound energy
aleksley [76]

Answer:

Hearing loss due to sound energy damaging the nerve cells in the inner ear. Many animals behavior is influenced by sound energy. They learn to associate events with sounds, so they run when something crunches in the dry grass (might be a coyote), but won't be bothered by the sound of a waterfall. Mood is affected by sound energy. A wine glass can break with sound energy, if the frequency matches the resonant frequency of the wine glass and the amplitude is great enough (one Mythbusters show featured a professional singer who broke a wine glass with his voice without any amplification).

Sound energy causes the particles in the medium it is traveling through to vibrate.

Unlike sound electromagnetic waves can travel trough empty space

hope these different answers help

4 0
3 years ago
Which of the following statements about the nature of electrical charge is FALSE? Positive-positive or negative-negative charges
Ilya [14]

Answer:

All of the above statements are true.

Explanation:

All matter is composed of atoms of which have subatomic particles. Subatomic particles are electrons, protons and neutrons. Each particle has electric charges.

Electrons have a negative charge, protons have a positive charge and neutrons have zero charge.

Between two nearby charges initially at rest, a type of forces, called electrostatic, is always established in such a way that, if the charged particles are small enough so that they can be considered punctual, the following conditions are met:

  • The force established between the two has a direction that coincides with an imaginary straight line that joins the two charges.
  • The force exerted on one load points towards the other when the two have different signs, one positive and the other negative. (attractive force).
  • The sense of force is directed to the opposite side of the charge when both have the same sign (repulsive force).
4 0
3 years ago
What is the wavelength of a wave?
zubka84 [21]

Definition: Wavelength can be defined as the distance between two successive crests or troughs of a wave.

6 0
2 years ago
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