A girl is riding a bicycle at 2.0m/s and throws a tennis ball horizontally forward at a speed of 1.0m/s from a height of 1.5m. At the exact same time, a boy standing on the sidewalk drops a tennis ball straight down from a height of 1.5m. Ignoring air resistance, which ball wouldn't hit the ground first?

Sara is creating an experiment. her hypothesis states the following. if i increase the air in my tires, then i will get better gas mileage. if this is her hypothesis what column titles do we need in our date table? a. air pressure in tire (psi) and gas mileage (mph) b. air pressure in the atmosphere (psi) and gas mileage (mph) c. miles (m) and gallons per mile (g) d. old battery and new battery

In the image, the arrow is pointing to a celestial object. which attribute disqualifies the object from being a planet?

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)