Consider the space time diagram below. Let the space time interval between events O and A be ?sOA, and let the space time interval between events O and B be ?sOB Which of these two space time intervals is larger? (Assume that the y and z coordinates of all these events are zero.)
A. 
B. 
C. 
D. There is no way to tell from this diagram.
A.
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Energy balance in the Sun refers to a balance between ________
A) the force of gravity pulling inward and the force due to pressure pushing outward B) the amount of energy the Sun radiates into space and the amount of energy that reaches Earth C) the rate at which fusion generates energy in the Sun's core and the rate at which the Sun's surface radiates energy into space D) the mass that the Sun loses each second and the amount of mass converted into energy each second
The ________ hypothesis is now the most popular to explain the Moon's origin
Fill in the blank(s) with correct word
An object's "momentum" is defined as
A) its force time is velocity. B) its mass times its speed. C) its force times its distance. D) its mass times its velocity. E) its weight times its speed.
How much current is drawn by a 1500 W appliance operating at 120V?
a. 2 b. 8 c. 12 d. 15 e. 24 amps