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____ [38]
3 years ago
6

Sunlight strikes a solar panel, which is then used to power the lights in a

Physics
2 answers:
Stells [14]3 years ago
7 0

Answer:

B

Explanation:

Sunlight comes in the form of light energy. Upon striking the solar panels, it converts the light energy into electrical energy so as to run throughout the circuits. Then since it's used to power light, the electrical energy will be converted back into light energy

faltersainse [42]3 years ago
3 0

Answer: Option B (Light energy to electric energy to light energy)

Explanation: First, the radiation that comes from the sun, and this radiation (in the form of light and heat) is absorbed by the panel.

Now, a thermal panel absorbs light, so the initial step is light energy.

Now the panel transforms that light energy into something that can be stored, like the chemical energy that goes in a battery or the electrical energy that runs in a house, in this case, the light energy is directly transformed into the electrical energy that runs in the house, and that electrical energy is used to power the lights in the house, so it transforms into light energy.

Then the correct option is B

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Please, someone help me I'm begging yall 1. it's estimated that 1 kg of body fat will provide 3.8 * 10^7 J of energy. A 67 kg mo
Leto [7]

Answer:

0.24 kg used up

Explanation:

He has a mass of 67 kg

The gravitational constant is 9.81 m/s^2

The distance upward is 3500 m

W = m*g*h

W = 67 * 9.81 * 3500

Work = 2,300,445 Joules

Work = 2300 kj

work = 2.30 * 10^6 joules in scientific notation.

Part B

He needs 4 times this amount to climb the mountain because the body is only 25% efficient in converting energy.

4*2.30 * 10^6 = 9.20 * 10^6 Joules of energy are therefore required.

The total amount in a kg of fat = 3.8 * 10^7 joules

x kg of fat is needed to provide 9.20.*10^6 joules

1 kg / (3.8 * 10^7 J ) = x kg / (9.20 * 10^6 J)

9.20 * 10 ^6 * 1 = 3.8 * 10^7 *x

9.20 * 10 ^6 / 3.8 * 10^7 = x

x = 0.24 kg of fat are needed

7 0
3 years ago
A passenger in the rear seat of a car moving at a steady speed is at rest relative to
Ber [7]
The person is at rest with respect to the car. So the best answer is:

c. the front seat of the car.

6 0
3 years ago
What is the velocity of a fly with a mass of approximately 6.85 times 10 to the negative 6 slugs if it has a kinetic energy of 5
vodka [1.7K]

Velocity of the fly: 1318 m/s

Explanation:

The kinetic energy of an object is the energy possessed by the object due to its motion. It can be calculated as

K=\frac{1}{2}mv^2

where

m is the mass of the object

v is its speed

For the fly in this problem, we have

m=6.85\cdot 10^{-6} kg is the mass

K = 5.95 J is the kinetic energy

Solving for v, we find its velocity:

v=\sqrt{\frac{2K}{m}}=\sqrt{\frac{2(5.95)}{(6.85\cdot 10^{-6})}}=1318 m/s

Learn more about kinetic energy:

brainly.com/question/6536722

#LearnwithBrainly

4 0
3 years ago
Can anyone answer this its a science question NO LINKS!!!
N76 [4]

Answer: heat to mechanical to electrical

Explanation:

5 0
3 years ago
Why is the reactor coolant water kept contained within the primary loop instead of allowing it to mix with the feed water and le
uysha [10]
For the answer to the question above, I the answer is yes, It is <u><em>both </em></u><span><u><em>contaminated and </em></u><u><em>radioactive</em></u></span><u><em> at the same time</em></u>. That's why they keep the water spinning.I hope my answer helped you. Have a nice day!

4 0
3 years ago
Read 2 more answers
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