Carbon dioxide
Helium
Argon
Hydrogen
2 min = 120 sec
120/15 = 8
The black horse represents 8 seconds.
Answer:
Well its what makes a salad taste good.
I,think potential energy is mgh so 65*100*9,81
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).
