If + = and A2 + B2 = C2, then the vectors and are oriented perpendicular relative to one other
Indicate whether the statement is true or false
TRUE
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Which is the longest time?
a) the time it takes for a photon to pass through the radiative zoneof the Sun b) the time it takes a photon to pass through the corona of the Sun c) one hour d) the time it takes a photon to pass from the photosphere of the Sun to the Earth e) the time it take light to traverse the convective zone of the Sun
When Joshua brakes his speeding bicycle to a stop, kinetic energy is transformed to
A) potential energy. B) energy of motion. C) energy of rest. D) heat.
The circuit below contains three 100-W light bulbs and a capacitor. The emf ? = 110V. At the instant the switch S is closed, which light bulb is brightest?
a.
A
b.
B
c.
C
d.
A and B
e.
All three are equally bright.
When a 20.0-ohm resistor is connected across the terminals of a 12.0-V battery, the terminal voltage of the battery falls 0.30 V. What is the internal resistance of this battery?
A) 3.60 ? B) 1.56 ? C) 0.98 ? D) 0.30 ? E) 0.51 ?