Which is a consequence of the third law of thermodynamics energy is not always conserved. engines cannot discharge waste heat. heat engines are less than 100 percent efficient. engines produce more waste heat than work.

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? your

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion