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4 years ago

From what process energy is liberated in the sun?explain it in brief.

Physics

1 answer:

lbvjy [14]4 years ago

7 0

Answer:The sun produces energy through nuclear fusion.

Explanation:

The sun produces energy through nuclear fusion. The sun is a large ball of hydrogen and helium undergoing constant nuclear fusion, in which atoms of hydrogen combine to form helium and release a large quantity of energy. The enormous pressure in the sun keeps the fusion running for huge amounts of time.

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In a thundercloud there may be an electric charge of 24 C near the top of the cloud and −24 C near the bottom of the cloud. If t

lidiya [134]

Answer:

Electric force, $F=1.29\times 10^6\ N$

Explanation:

Given that,

Charge 1, $q_1=24\ C$

Charge 2, $q_2=-24\ C$

Distance between charges, d = 2 km

The electric force is given by :

$F=k\dfrac{q_1q_2}{d^2}$

k is the electrostatic constant

$F=8.98755\times 10^9\times \dfrac{(24)^2}{(2\times 10^3)^2}$

F = 1294207.2 N

$F=1.29\times 10^6\ N$

Hence, this is the required solution.

5 0

4 years ago

What is the difference between atoms and particals? Help

Otrada [13]

An atom is the smallest unit of matter that forms a chemical element. An atom is made up of three kinds of subatomic particles: electrons, protons, and neutrons.A molecule is a combination of atoms bonded together through a covalent bond. Generally, we think of molecules as having no charge (although molecular ions do exist)

7 0

3 years ago

A 500 gram piece of metal has a volume of 2.75cm^3. What is its density?

olga_2 [115]

Answer:

mass= 500 grams

volume= 2.75 cm^3

density= 181.818182 g/cm^3

Explanation:

density is mass divided by volume so your answer is 181.818..

3 0

3 years ago

Two soccer players, Mia and Alice, are running as Alice passes the ball to Mia. Mia is running due north with a speed of 5.30 m/

never [62]

Answer:

A. 2.83 m/s

B. 39.55 degrees north of east

Explanation:

The velocity of the ball relative to the ground is the sum vectors of velocity of the ball relative to Mia and the velocity of Mia relative to the ground

If we take north east as positive direction then

Velocity vector of the ball relative to Mia is

$= =$

Velocity of Mia relative to gorund is

<0, 5.3>

So velocity of the ball relative to the ground is

<1.8, -3.12> + <0, 5.3> = <1.8, 2.18>

Its magnitude is:

$v = \sqrt{v_e^2 + v_n^2} = \sqrt{1.8^2 + 2.18^2} = \sqrt{3.24 + 4.7524} = \sqrt{7.9924} = 2.83$ m/s

Its direction is

$tan\alpha = \frac{v_e}{v_n} = \frac{1.8}{2.18} = 0.83$

$\alpha = tan^{-1}0.83 = 0.69 rad \approx 39.55 degrees$ north of east

4 0

3 years ago

1. List one way mitosis and meiosis are the same and one way they are different.

kolbaska11 [484]

1. They both are same in the process, I mean they both are types of cell division they both form and give rise to new cells from the existing ones
difference would be in their division a mitotic cell gives rise to 2 cells where as a meiotic cell gives rise to 4.
2. the advantage of sexual reproduction is that , it produces genetic variation, disadvantage is it's a very slow process and takes lot of time
3. the advantage is that ,it's a very rapid process as it doesn't involve complex interactions. of genes and chromosomal recombination, the disadvantage would be is that they don't produce variation which can have adverse affect on their survival, even due to slightest change in the environment
4. Undergoing both the type of cell division is good as in human mitotic division is meant for growth and development whereas meiotic divisions are necessary and important for gametes formation and for raising new generation

6 0

3 years ago

From what process energy is liberated in the sun?explain it in brief.​

From what process energy is liberated in the sun?explain it in brief.