The Triassic is a(n)
a. epoch.
b. era.
c. eon.
d. period.
d
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A lamp rated 23W 120V means that it will deliver 23 W
A) when the voltage across it is 120 V. B) whether or not it is connected to 120 V. C) as long as the current is ac. D) none of the above
Poor clusters of galaxies often contain an excess of E and S0 galaxies
a. True b. False Indicate whether the statement is true or false
A rocket with a mass of 750 grams is launched straight up. It achieves a velocity of 25.00 m/s in 2.00 seconds. The average net force on the rocket is
A. 16.7 N. B. 24.5 N. C. 33.1 N. D. 41.7 N. E. 52.8 N.
In a parallel circuit with three resistors all the same size, the current flow though each leg of the circuit will be equal
a. True b. False Indicate whether the statement is true or false