The approximate size of the nucleus in an atom is
a. 10-8 m.
b. 10-10 m.
c. 10-12 m.
d. 10-15 m.
e. 10-18 m.
D
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The age of the whole Galaxy has been found from studies of its oldest stars in the ________ clusters that orbit in the Halo
Fill in the blank(s) with correct word
The wavelength from an FM station broadcasting at 93.9 megahertz on your radio is
a. 31.3 m. b. 3.13 m. c. 0.313 m. d. 0.0313 m. e. none of the above.
A 13,000-N vehicle is to be lifted by a 25-cm diameter hydraulic piston. What force needs to be exerted on a 5.0 cm diameter piston to accomplish this? Assume the pistons each have negligible mass
A) 260 N B) 520 N C) 2600 N D) 5200 N
Suppose a particle’s four-momentum vector has components [pt, px, py, pz] = [5 kg, 3 kg, 0, 0]. What is this particle’s mass?
A. 5 kg
B. 8 kg
C. 4 kg
D. 3 kg
E. 
kg
F. Other (specify)