The proton-proton chain and the CNO cycle produce energy by fusing hydrogen into helium.
Answer the following statement true (T) or false (F)
True
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An inorganic photovoltaic solar cell is made from which of the following?
(a) pnp-junction (b) MPM-junction (c) Pure silicon (d) pn-junction
In each of the cases shown below, determine the direction of the magnetic field that is causing the charged particle to experience the magnetic force shown.
A. Forward
B. Backward
C. Rightward
D. Leftward
E . Into the paper
F . Out of the paper
T . Impossible
When the distance between the two charges is doubled, the force between them is
A) doubled. B) quadrupled. C) reduced by a factor of 3. D) reduced by a factor of . E) reduced by a factor of 4.
If no external forces act on a moving object, it will
A) continue moving at the same speed. B) move slower and slower until it finally stops. C) come to an abrupt halt. D) none of the above