1. La velocidad de la luz va aumentando a medida que el medio donde se propague tiene: A. Carga eléctrica positiva B. Carga eléctrica negativa C. Poca densidad
D. Mucha densidad

According to the tide table below what time of day will the highest tide occur?

Awave travels at a speed of 5.2 m/s. if the distance between crests is 0.40 m, what is the frequency of the wave? use f=v/wavelength a. 13 hz b. 2.1 hz c. 0.077 hz d. 5.6 hz

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final