A student is trying to build his carpeting home business and is wondering how much money he will have to put aside each month to pay for using his electric saw. What will it costs him to operate his electric saw rated at 0.350kW for 5.0 hrs a day for 30 days if the cost of electrical energy is $0.06/kWh?

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

Afisherman notices that his boat is moving up and down periodically, owing to waves on the surface of the water. it takes a time of 2.70 s for the boat to travel from its highest point to its lowest, a total distance of 0.700 m. the fisherman sees that the wave crests are spaced a horizontal distance of 6.50 m apart. a. how fast are the waves traveling? b. what is the amplitude a of each wave?

The electric field inside a cell membrane is 8.0mn/c. what's the force on a singly charged ion in this field?