I think it is A.. but then again im not sure
Answer:
it is missing some numbers
Explanation:
I think you get half of the magnetic field and that means half the power of the magnetic field.
As the first astronaut throws the ball, lets assume it goes with v velocity and the mass of the ball be m
the momentum comes out be mv, thus to conserve that momentum the astronaut will move opposite to the direction of the ball's motion with the velocity mv/M (where M is the mass of the astronaut).
Answer:
215mph
Explanation:
multiply 112milws by 2 and multiple that by seven, then divide it by two