When a comet passes near the Sun, part of it takes on the appearance of a large, bright ball from which the tail extends. This part is called ________
A) the nucleus B) the plasma tail C) the Oort core D) the coma
D
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A series LR circuit includes a 9.0. V battery, a resistance of 0.500 
and an inductance of 0.800 H. What is the greatest energy stored by the inductor after the switch is closed?
A. 33.0 mJ B. 13.0 mJ C. 130 J D. 65.0 J E. 33.0 J
The SAE grade (e.g. SAE 20W) is an indicator of oil
A) surface tension. B) pressure. C) viscosity. D) density. E) Reynolds number.
The capacitance per unit length of a very long coaxial cable, made of two concentric cylinders, is 50 pF/m
What is the radius of the outer cylinder if the radius of the inner one is 1.0 mm? (k = 1/4??0 = 8.99 × 109 N ? m2/C2) A) 0.50 mm B) 4.0 mm C) 2.0 mm D) 3.0 mm E) 1.0 mm
What is one of the largest impact basin in the Solar System?
a. Crisium Basin b. Caloris Basin c. Imbrium Basin d. Mare Tranquillitatis e. Aitken Basin