Why can't perpetual motion not work on earth?

What year was the first basketball game?

In order to make a card move forward, a horse must pull harder on the cart than the cart pulls on the horse? True or false?

During refraction, what happens to a wave when it travels from one medium to another? The wave travels in the opposite direction. The wave changes speed. The wave moves in the same direction. The wavelength increases.

A 384 m long train is moving on a straight track with a speed of 77.3 km/h. The engineer applies the brakes at a crossing, and later the back of the last car passing the crossing with a speed of 19.5 km/h.

A particle moves with uniform velocity. which of the following statements about the motion of the particle is true? A. its speed is zero B. it's acceleration is zero c. it's speed may be variable D. acceleration may be variable

The spinning of earth on its axis causes the apparent rising and setting of the

20 m/s can be an answer for velocity true or false

Two copper wires with different diameters are joined end to end. If a current flows in the wire combination, what happens to electrons when they move from the larger-diameter wire into the smaller-diameter wire?

A baseball player is warming up and tosses a ball straight up into the air. The ball travels up until it reaches some maximum height, and then falls back down to the player/'s hand.

Volume can be measured in liters or cubic meters. a. T b. F