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3 years ago

Which image illustrates the bending of a wave as it passes into a new

Physics

1 answer:

3241004551 [841]3 years ago

3 0

Answer:

Option B.

Explanation:

The bending of a wave when it reaches the interface separating two media is called refraction of light.

In figure B, the wave initially in medium 1. Then it reaches the interface. After that it bends. It means the bending of light occurs in this case.

Hence, the correct option is (B).

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A car slows from 22 m/s to 3.0 m/s at a constant rate after 110 meters. How many seconds are required before the car is travelin

ElenaW [278]

Recall that average velocity is given by

$v_{\rm ave}=\dfrac{\Delta x}{\Delta t}$

Under constant acceleration, we also have

$v_{\rm ave}=\dfrac{v_i+v_f}2$

Then

$\dfrac{\Delta x}{\Delta t}=\dfrac{v_i+v_f}2$

$\implies\dfrac{110\,\mathrm m}{\Delta t}=\dfrac{22\frac{\rm m}{\rm s}+3.0\frac{\rm m}{\rm s}}2$

$\implies\boxed{\Delta t=8.8\,\mathrm s}$

7 0

3 years ago

A bicycle has a momentum of 25.00 kg·m/s and a velocity of 2.5 m/s. What is the bicycle’smass?

tigry1 [53]

Answer:

10 kg

Explanation:

p=ma

25=2.5m

m=25/2.5

m=10 kg

mark as brainliest plzzzzz

6 0

3 years ago

What is the centripetal force

Lelechka [254]

Answer:90N

Explanation:

Mass=30kg

Centripetal acceleration=3m/s^2

centripetal force=mass x centripetal acceleration

Centripetal force=30 x 3

Centripetal force =90

Centripetal force =90N

4 0

3 years ago

Father drove 176 km in 7 hours. For the first 92 km, he spent

Verizon [17]

Answer:

28km/h

Explanation:

92km = 4 hours

176 - 92 = 84

84km = 3 hours

84/3 = 28

28km/h

Hopefully this helps you :)

pls mark brainlest ;)

3 0

3 years ago

Conservation of energy is explained as a scientific law and not a _______ because it does not explain why energy is conserved

AURORKA [14]

Answer:

Theory

Explanation:

Conservation of energy is explained as a scientific law and not a theory because it does not explain why energy is conserved.

A law is a the statement of a scientific fact. It is a product of repeated experiment and observation through time. Most laws do not explain the reason for the logic behind their premise.

A theory on the other hand provides an explanation for an observed phenomenon. Most theories are no immutable. They are often changed when new finds are reported or made.

Laws are immutable and they stand still.

6 0

3 years ago