6. A classic example of an action-reaction force pair is a horse pulling a cart. If the force exerted when the horse pulls the cart is equal to the force exerted when the cart pulls back on the horse, how do either of
them accelerate?

What are similarities and differences between refraction, reflection, diffraction and absorption?

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.

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