A spring with a spring constant of 22 N/m is stretched from equilibrium to 2.9 m. How much work is done in the process? O A. 186 )
OB. 47 J
O C. 933
OD. 121 )
what is the answer ?

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.