HURRY Question 1 of 10 A 0.057 kg tennis ball and a tennis racket collide. The racket has an initial
momentum of -2.80 kg-m/s and a final momentum of -1.97 kg-m/s. The ball
has an initial momentum of 0.02565 kg. m/s. If you assume the collision is
elastic, what is the final velocity of the ball?
A. -83.26 m/s
B. -0.80 m/s
C.-14.11 m/s
O D. -4.75 m/s

When something is moving, it is in motion. pressing the gas pedal in a car will put the car in motion. two important properties of motion are speed and direction. speed is how fast an object is moving. tony and tanya both run for the same amount of time, in the same direction. tanya runs much further than tony in that time. how does tony's speed compare to tanya's speed? a) their speed is equal. b) tony is slower than tanya. c) tony is faster than tanya. d) without a stopwatch, you can't say for certain.

Afull irb committee meeting is convened and one agenda item is a new research proposal to evaluate how mothers interact with their learning-disabled child. the inclusion criteria require the children to be a minimum of five years of age. the protocol requires the mother of the child to look at the child without any expression and not to talk to the child for three minutes. the committee determined that the mother's required task may upset the child. the irb approved the study with appropriate language in the parental permission form regarding the possibility that children might become upset. after the start of the study, the principal investigator reports to the irb that, as expected, one of the children became upset. the incident was handled according to the protocol and the child is fine. what should the irb do with regard to this report?

What is the name of this mountain range found in northern africa?