Atoy car engine pushes it forward at a constant speed. what happens if the force provided by the engine decreases?

a. the toy car speed remains constant
b. the toy car mass mass increases
c. the toy car gains inertia
d. the toy car state of motion changes

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_