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patriot [66]
3 years ago
13

Which is the BEST example of refraction?

Physics
2 answers:
Mademuasel [1]3 years ago
8 0

Answer:

Option (c) is correct.

Explanation:

When a ray of light passes from one optical medium to another optical medium, the path of ray of light is deviated, this phenomena is called refraction.

It occurs due to the change in speed of light, as it passes from medium to another.

So, when a laser beam passes through a glass block, the refraction takes place.

Aneli [31]3 years ago
6 0

Answer:

c would be your answer just did this on usatest prer

Explanation:

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A crate hangs from a ring at the middle of a rope, as the drawing illustrates. a person is pulling on the right end of the rope
aev [14]

Answer:

No

Explanation:

In order for the rope to be perfectly horizontal, there must be a vertical component in tension

5 0
2 years ago
3. Do you think Lynn’s (the protagonist)actions were justifiable by her motives? Why or why not? Please help me Bad Genius the m
nekit [7.7K]

Answer:

I do believe her actions were justified.

Explanation:

Due to the school charging extra fee from her father who makes a modest amount as a teacher. There was sum of money involved that could change how he lived and her.

I do not believe her actions where justified

She had a lot going for her. She could have skipped the hardship of helping grace and pass. She could have easily have gotten a good job with a degree and paid back all the debts owed. Alot of troubles could have been avoided just by doing her own thing.

7 0
3 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 gold nucleus is 466 fm (1 fm = 10-15 m) from a proton, which initially is at rest. When the proton is released, it speeds away
Artist 52 [7]

Answer:

v=6.8\times10^6m/s

Explanation:

The sum of the kinetic and electric potential energies of the proton when initially released must be equal to their sum at infinity, so we have:

K_i+U_i=K_f+U_f

Which, since K_i=0J because initially the proton is at rest, is:

\frac{kqQ}{d}=\frac{mv^2}{2}+\frac{kqQ}{r_\infty}

where k=9\times10^9Nm^2/C^2 is Coulomb's constant, q=1.6\times10^{-19}C the charge of the proton, Q=(79)(1.6\times10^{-19})C the charge of the gold nucleus, since it has 79 protons, d=466\times10^{-15}m the initial separation between them, m=1.67\times10^{-27}kg the mass of the proton and v its final velocity. r_\infty is very far away, so the final electric potential will be 0J, and we have:

v=\sqrt{\frac{2kqQ}{md}}=\sqrt{\frac{2(9\times10^9)(1.6\times10^{-19})^2(79)}{(1.67\times10^{-27})(466\times10^{-15})}}m/s=6839409m/s

8 0
3 years ago
A spring with k = 19.5 N/cm is initially stretched 1.39 cm from its equilibrium length. a) How much more energy is needed to fur
lara31 [8.8K]

Answer:

Energy needed = 54.02 J

Explanation:

the Energy in an elastic spring from hookes law is given  as

F= ke , therefore the energy (E) is

E = \frac{1}{2} Ke^{2}

K = 19.5 N/cm

e = 1.39cm

E = \frac{1}{2} x 19.5 x 1.39

E = 13.55 J

The energy to stretch the spring for 6.93cm is

E = \frac{1}{2} x 19.5 x 6.93

E = 67.57 J

The more energy needed for the further stretch is

67.57 - 13.55

Energy needed = 54.02 J

7 0
3 years ago
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