The seasons are caused by Earth's orbit moving closer to or farther from the Sun
a. True
b. False
Indicate whether the statement is true or false
False
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Impedance: A 10-? resistor is connected in series with a 20-?F capacitor. What is the impedance at 1.0 kHz?
A. 8.0 ? B. 10 ? C. 13 ? D. 15 ?
Which of the following are true concerning Hubble's Law?
A. Hubble's Law can be explained as a consequence of an expanding universe. B. The Hubble constant is not constant over time. C. Hubble's Law experimentally confirmed the prediction of Lemaitre. D. Hubble's Law shows that we are at the center of the universe.
The Big Bang has time in primordial nucleosynthesis to make only H and He in abundance
Indicate whether the statement is true or false
Magnetic confinement is used in controlled fusion experiments to control a plasma
Indicate whether the statement is true or false