A toy car is initially at rest and travels a straight line distance 2 meters reaching a speed of 4 m/s. What is the acceleration of the toy car ?

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.