If the coefficient of friction between block and surface is 0.251 , what was the speed of the bullet immediately before impact? Answer in units of m/s.

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

Write a hypothesis about the effect of increasing resistance on the current in the circuit. use theformat and be sure to answer the lesson question. “how do changes in voltage or resistance affect current in an electric circuit? ”