8) Solar energy at normal
incidence outside the earth
atmosphere is about:
(a)1.4 kWm 2
(b) 1 kWm-2
(c)4.1 kWm 2
(d) 4kWm 2
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Answer:
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Explanation:
option d is correct
Answered by
0
Answer:
A skydiver jumps from an aeroplane. After a few seconds, he reaches a terminal velocity without
opening his parachute.
Why does he reach terminal velocity?
A Air resistance becomes greater than his weight and slows him down.
B Air resistance decreases and he speeds up.
C Air resistance increases and balances his weight so that his acceleration is zero.
D His weight decreases and balances the air resistance.
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