Two ice skaters, lilly and john, face each other while at rest, and then push against each other's hands. the mass of john is twice that of lilly. how do their speeds compare after they push off? lilly's speed is one-fourth of john's speed. lilly's speed is the same as john's speed. lilly's speed is two times john's speed. lilly's speed is four times john's speed. lilly's speed is one-half of john's speed.

Abird sitting high in a tree is an example of what type of wnergy

An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse