The position of a mass that is oscillating on a spring is given by x = (17.4 cm) cos[(5.46 s-1)t]. Write an expression for the velocity of the particle as a function of time
What will be an ideal response?
-(95.0 cm/s) sin[(5.46 s-1 )t]
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Jupiter's center appears to have a rocky core. In this context, the term rocky core refers to:
A) the number of light-weight elements in Jupiter. B) Jupiter's temperature. C) Jupiter's chemical composition. D) the properties of the material present in Jupiter.
Saturn's rings
a. have looked basically the same since they formed along with Saturn. b. were created long ago when tidal forces tore apart a large moon. c. are continually supplied with new particles by impacts with small moons.
Consider the events A, B, C, and D shown in the space time diagram below. What is the space time interval between events A and B?
A. 0 s
B. 2 s
C. 3 s
D. 4 s
E. 5 s
F. Other (specify)
On the average during good weather, the Earth has a positive surface charge. Which is the usual direction of the Earth's electric field at the Earth's surface?
a. down b. up c. some direction parallel to the Earth's surface d. north.