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1 year ago

Which process generates energy in the Sun?1) nuclear fusion2) nuclear fission3) chain reaction4) transmutation

Physics

1 answer:

Ber [7]1 year ago

5 0

1) nuclear fusion

During nuclear fusion, the high pressure and temperature in the sun's core cause nuclei to separate from their electrons. During this process, radiant energy is released.

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Which of the following is an electric potential?

Dennis_Churaev [7]

Answer:

D. 2.5 V

Explanation:

Electric potential of a point in space is a scalar magnitude that allows a measurement of the electric field at that point to be obtained through the electrostatic potential energy that a electric charge would acquire if it is placed at that point.

8 0

2 years ago

Read 2 more answers

A glass optical fiber is used to transport a light ray across a long distance. The fiber has an index of refraction of 1.550 and

devlian [24]

To solve this exercise it is necessary to apply the concepts related to the Snells law.

The law defines that,

$n_1 sin\theta_1 = n_2 sin\theta_2$

$n_1 =$ Incident index

$n_2 =$ Refracted index

$\theta_1$ = Incident angle

$\theta_2 =$ Refracted angle

Our values are given by

$n_1 = 1.550$

$n_2 = 1.361$

$\theta_2 =90\° \rightarrow$ Refractory angle generated when light passes through the fiber.

Replacing we have,

$(1.55)sin \theta_1 = (1.361) sin90$

$sin \theta_1 = \frac{(1.361) sin90}{(1.55)}$

$\theta_1 =sin^{-1} \frac{(1.361) sin90}{(1.55)}$

$\theta_1 =61.4\°$

Now for the calculation of the maximum angle we will subtract the minimum value previously found at the angle of 90 degrees which is the maximum. Then,

$\theta_{max} = 90-\theta \\\theta_{max} =90-61.4\\\theta_{max}=28.6\°$

Therefore the critical angle for the light ray to remain insider the fiber is 28.6°

6 0

3 years ago

N 4. Which of the following can cause a short circuit?

user100 [1]

Answer:

pretty sure its A

Explanation:

please give brainliest if i'm correct

7 0

2 years ago

Heat is:_________

zysi [14]

Answer:

The answer is C ..

EXPLANATION:-

The amount of energy transferred between objects as a result of a difference in temperature.

4 0

2 years ago

1. Which of the following are examples of natural resources

wariber [46]

Answer:

1) Coal is a natural resource, so is wood, wind energy, soil, salt, fluorite, water, and copper

2) Solar energy, natural gas, and wind energy are all renewable

3) Salt is non - renewable as is synthetic diamonds and plastic

4) I think it would be number

5) Based on their mineral, chemical, and textural composition

Explanation:

Hope this helps :)

4 0

2 years ago