2 kg toy car moves at a speed of 5 m/s. B. If a child applies a 3 N force for 2 m in the same direction the car is already moving, how much work is done on the car?

c. What is the change in the car’s kinetic energy from the applied force?

d. What is the final kinetic energy of the car?

e. What is the velocity of the car after the child applies the 3 N force?

What are some properties of transverse waves?

Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =

Determine the force the sun exerts on an object with a mass of 80.0 kg if that object is on the earth. what is the force exerted by the moon on the same object? what is the force the earth exerts on it?