Consider a river flowing toward a lake at an average velocity of 3 m/s at a rate of 500 m3/s at a location 106 m above the lake surface. determine the total mechanical energy of the river water per unit mass and the power generation potential of the entire river at that location. take density of water to be rho = 1000 kg/m3. (round the final answers to two decimal places.)

Foreshadowing. the prologue states that this is the story of "star-crossed lovers." there are four strong foreshadowings of evil in act 1. identify at least two foreshadowings and explain their purpose.

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=