PLS HELP MEE ill literally suck you off JUST PLS and mark you brainliest A tennis player hit a .057-kg ball with a force of 40 N. The duration of the force was .05 s.

1. Calculate the impulse delivered to the ball.
2. What was the change in momentum of the ball?
3. What was the velocity of the ball as it left the tennis racket?
4. What would happen to the ball's velocity if it remained on the tennis racket longer than .05 s?

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Carbon 14 is a naturally occurring stable

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good