Answer:
Absorbed solar radiation undergoes irreversible degradations, transferring from reservoir to another converting from light energy to radiation energy.
Explanation:
The solar energy cycle functions in the following form:
- Considering that 100% of energy is directed at earth.
- When 100% light is incident on the Earth's surface about 6-7% of it is reflected back by the atmosphere into space.
- 20% is reflected back by the clouds.
- And about 4% is reflected back by Earth's surface.
- 16% of solar energy is absorbed by the atmosphere, 3% is absorbed by clouds and 51% is absorbed by land and ocean.
- From the absorbed energy, 64% is radiated back to space from clouds and atmosphere and 6% is directly radiated back to space from earth.
- From the radiated energy 15% is absorbed by the atmosphere and 23% is carried by the clouds and atmosphere through the latent heat in water vapor.
Therefore, absorbed solar radiation undergoes irreversible degradations, transferring from reservoir to another converting from light energy to radiation energy.
Learn more about solar energy here:
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Answer: Thermal energy transfer involves the transfer of internal energy. The three types of thermal energy transfer are conduction, convection and radiation. Conduction involves direct contact of atoms, convection involves the movement of warm particles and radiation involves the movement of electromagnetic waves.
Explanation:
Answer:
a) 
, b) 
, c) 
, d) 
, e) The direction of the centripetal acceleration experimented by the gum goes to the center of rotation, f) Zero, g) 
.
Explanation:
a) The maximum angular velocity of the fan is:
b) The angular acceleration of the fan is:
c) The magnitude of the tangential aceleration is:
d) The magnitude of the centripetal acceleration is:
e) The direction of the centripetal acceleration experimented by the gum goes to the center of rotation.
f) When fan is at full speed, it rotates at constant rate and, hence, there is no angular acceleration. Besides, the tangential acceleration experimented by the gum is zero.
g) The linear speed of the gum is:
Answer:
64°
Explanation:
The triangle is an isosceles triangles (both legs are equal to the radius of the circle), so that means the base angles are the same.
Angles of a triangle add up to 180°, so:
128 + 2x = 180
2x = 52
x = 26
∠1 is complementary to the base angle, so:
∠1 = 90 − 26
∠1 = 64
Answer:
The basic principle on which the electric iron works is that when a current is passed through a piece of wire, the wire heats up. This heat is distributed to the sole (base) plate of the electric iron through conduction.
