Which of these would best represent the effect of an embargo on trade with china?

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

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.

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?