This recurring event happens in the case of a binary system in which one of the companions is a neutron star.
A. X-ray bursts
B. novae
C. Type II supernovae
D. Type I supernovae
E. None of these choices is correct.
Answer: A
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If the rockets of a spaceship in outer space (far from all gravity) suddenly lose power and go off, the spaceship will gradually slow to a stop
A) True B) False
The fourth planet from the Sun is ______________
Fill in the blank(s) with correct word
Coulomb's Law: Suppose you wanted to hold up an electron against the force of gravity by the attraction of a fixed proton some distance above it. How far above the electron would the proton have to be? (k = 1/4??0 = 9.0 × 109 N ? m2/C2, e = 1.6 × 10-19 C, mproton = 1.67 × 10-27 kg, melectron = 9.11 × 10-31 kg)
A. 1.5 m B. 2.3 m C. 3.7 m D. 4.6 m E. 5.1 m
An 80.0-kg object is falling and experiences a drag force due to air resistance. The magnitude of this drag force depends on its speed, v, and obeys the equation
What is the terminal speed of this object? A) 6.45 m/s B) 72.2 m/s C) 34.2 m/s D) 12.6 m/s E) 47.3 m/s