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andrew-mc [135]
4 years ago
7

What changes if the light is underwater and the light goes into air

Physics
1 answer:
grin007 [14]4 years ago
3 0

Answer:

Therefore, when a light ray traveling through air enters water or glass it slows down, refracts, and bends toward the normal line. ... For example, when light goes from glass or water to air, it speeds up. Refraction changes how objects look.

Explanation:

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In midair an M = 145 kg bomb explodes into two pieces of m1 = 115 kg and another, respectively. Before the explosion, the bomb w
Daniel [21]

Answer:

v_2=-133.17m/s, the minus meaning west.

Explanation:

We know that linear momentum must be conserved, so it will be the same before (p_i) and after (p_f) the explosion. We will take the east direction as positive.

Before the explosion we have p_i=m_iv_i=Mv_i.

After the explosion we have pieces 1 and 2, so p_f=m_1v_1+m_2v_2.

These equations must be vectorial but since we look at the instants before and after the explosions and the bomb fragments in only 2 pieces the problem can be simplified in one dimension with direction east-west.

Since we know momentum must be conserved we have:

Mv_i=m_1v_1+m_2v_2

Which means (since we want v_2 and M=m_1+m_2):

v_2=\frac{Mv_i-m_1v_1}{m_2}=\frac{Mv_i-m_1v_1}{M-m_1}

So for our values we have:

v_2=\frac{(145kg)(24m/s)-(115kg)(65m/s)}{(145kg-115kg)}=-133.17m/s

5 0
3 years ago
For your senior project, you would like to build a cyclotron that will accelerate protons to 10% of the speed of light. The larg
jeyben [28]

Answer:

<h2>Magnetic field strength in that region is 1.2 T</h2>

Explanation:

As we know by the formula of radius of charge moving in external field is given as

R = \frac{mv}{qB}

so we will have

R = 25 cm

m = 1.6 \times 10^{-27} kg

q = 1.6 \times 10^{-19} C

v = 0.10 \times 3 \times 10^8 m/s

now we have

0.25 = \frac{(1.6 \times 10^{-27})(3\times 10^7)}{(1.6 \times 10^{-19})B}

now we have

B = 1.2 T

8 0
3 years ago
The blade of a windshield wiper moves through an angle of 180.0 degrees in 0.500 s. The tip of the blade moves on the arc of a c
sweet-ann [11.9K]

Answer:

Centripetal acceleration will be equal to 10.66m/sec^2

Explanation:

We have given time taken to cover 180° is 0.5 sec

So time taken by 360° is equal to = 2×0.5 = 1 sec

Radius of the circle r = 0.520 m

So distance d=2\pi r=2\times3.14\times 0.520=3.2656m

So velocity v=\frac{distance}{time}=\frac{.2656}{1}=3.2656m/sec

We have to find the centripetal acceleration

Centripetal acceleration will be equal to a_c=\frac{v^2}{r}=\frac{3.2656^2}{1}=10.66m/sec^2

So centripetal acceleration will be equal to 10.66m/sec^2

7 0
4 years ago
List two examples of situations were neutral object is charged by conduction,induction and friction
katovenus [111]
1. Boiling water
2. Hair straightener or curler
5 0
3 years ago
A space probe that weighs 5,630 N on the Earth has a weight of 4,504 N on another planet. What is the gravitational field streng
Arturiano [62]

Answer:

6,000 gravity force is your answer another question

4 0
2 years ago
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