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victus00 [196]
4 years ago
15

Which describes refraction

Physics
1 answer:
Artyom0805 [142]4 years ago
3 0

refraction is the bending of a wave when it enters a medium word speed is different. therefraction of light when it passes from a fast medium to a-slow medium bends the light ray toward the normal to the boundary between the two media
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WILL GIVE BRAINEST + 500 PTS ...
Eva8 [605]

Answer:

(1) expanding

(2) Red, blue

(3) red, spreading out

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5 0
3 years ago
The diameter of a spherical balloon that is being filled with air is increasing at the rate of 3 inches more than the time, t. W
Sever21 [200]
The description of the problem is a bit ambiguous as "<span>increasing at the rate of  </span>3 inches more than the time" can be interpreted in many ways. Assuming the increase rate is the (3+t) per second and as it expands for 3 seconds, then the diameter of the sphere would be:
d= (3 + t)*t
d= 3t + t^2= 18

r= 1/2 d 
r= 1/2*18= 9

volume= 4/3 * pi * r^3
volume= 4/3 * pi * 9^3
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4 years ago
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How can we determine the strength of a sonic boom?
tino4ka555 [31]
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8 0
4 years ago
rollercoaster car starts at a height of 90 m at Point A and is moving at a speed of 20 m/s on a later hill at point C. Assuming
Temka [501]

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5 0
3 years ago
A shopping cart is rolling down a ramp with an initial velocity of + 1.0 m s +1.0 s m ​ plus, 1, point, 0, start fraction, start
Nikitich [7]

The kinematic relations allow finding that the answers for the velocity and the position of the car in a time of 2 s. are:

  • The velocity is v = 7 m / s
  • The position is x = 8 m

 

Kinematics studies the movement of bodies giving relationships between the position, velocity and acceleration of the body

They indicate that the initial velocity is v₀ = 1 m/s, that the car has an acceleration of a = 3 m/s² and asks about the position and velocity after a time of t = 2s

Let's used the kinematics relation

                 v = v₀ + a t

                 v = 1 + 3 2

                 v = 7 m / s

We look for the position

                  x = v₀ t + ½ a t²

                 x = 1 2 + ½ 3 2²

                 x = 8m

In conclusion, using the kinematics relations we can find the answers for the speed and the position of the car in a time of 2 S. They are

  • The velocity is v = 7 m / s
  • The position is x = 8m

Learn more here:  brainly.com/question/11298125

4 0
3 years ago
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