A light bulb with a resistance of 2.9 ohms is operated using a 1.5 volt battery. At what rate is electrical energy transformed in the ligthbulb?
1) 0.52W
2)0.78W
3)4.4W
4)6.5W

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass