A67.5-kg basketball player jumps vertically and leaves the floor with a velocity of 1.99 m/s upward.
(a) what impulse does the player experience? magnitude 134.33
(b) what force does the floor exert on the player before the jump?
(c) what is the total average force exerted by the floor on the player if the player is in contact with the floor for 0.450 s during the jump?

An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° 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.)

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)