5. Two friends are 90-m apart and begin to walk towards one another. One friend walks at a rate of 2 m/s as the other walks at 3 m/s. How long
before the two friends come into contact with one another?
(A) 18 s
(C) 75 s
(B) 7.5 s
(D) 450 S

Acar accelerates from 5.0 m/s to to 11 m/s at a rate of 3.0 m/s^2. how far does it travel while accelerating? 20m 117m 43m 16m

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?