A mass of 16 kg is suspended from a spring with a spring constant of 16 N/m and then released, creating periodic motion. At what distance below the
natural length of the spring will the mass finally come to rest? (Recall that g=
9.8 m/s2)
A. 11.2 m
B. 5.6 m
C. 9.8 m
D. 3.0 m

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.

Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron

Most of the volume of an atom is occupied by the