Six identical blocks of steel, each with mass 10.0 kg, are taken to the Moon. On the Moon, their combined mass is
A. 60.0 kg.
B. zero.
C. 10.0 kg.
D. 360 kg.
Answer: A
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Newton showed that Kepler's laws are ________
A) seriously in error B) the key to proving that Earth orbits our Sun C) actually only three of seven distinct laws of planetary motion D) natural consequences of the law of universal gravitation
According to quantum theory, the electron in a particular quantum state of the hydrogen atom has
A) a definite position. B) a definite energy. C) a definite velocity. D) All of the above. E) None of the above.
In a parallel circuit, the size of the current flowing through each device may be different
Indicate whether the statement is true or false
Particle A has mass m and speed
. Particle B has mass 
and speed 
. How do the magnitudes of their relativistic momenta compare?
A. 
B.
C.