The ____ of an object is a measure of the amount of matter it contains. On the other hand ____ is a measure of the gravitational force on an object
a. weight; mass
b. mass; weight
c. energy; force
d. force; energy
e. momentum; energy
b
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Which of the following is false?
A) The order of events can be different for observers in different reference frames. B) From your point of view, time runs slower in the reference frame of anyone moving relative to you. C) If one observer measures two events to be simultaneous, all observers must agree on their simultaneity. D) Time dilation is an observationally verified fact. E) Time runs slower near a black hole.
Household circuits are wired in ________
a. series b. parallel c. both series and parallel d. neither series nor parallel
What will you see with the following type of optic: Concave lens
A. Image is smaller |
B. Image is the same |
C. Image is larger |
X-rays with an energy of 400 keV undergo Compton scattering from a target. The scattered rays are deflected at an angle of 38° relative to the direction of the incident rays.What is the kinetic energy of the recoiling electrons?
a. 56.9 J b. 51.5 J c. 34.3 J d. 13.7 J