Aproton is launched from an infinite plane of charge with surface charge density -1.10×10-6 c/m2. if the proton has an initial speed of 2.40×107 m/s, how far does it travel before reaching its turning point? 48.4 m 96.7 m 2.02×10-6 m 8.74×10-7 m

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

Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)

Which of the following is another term for a planned economy