11:29 Fri 5 Feb 20/35
Quiz
A pendulum bob moves at a speed of 2 m/s and mass of 0.5 kg, its Ek would be

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?

If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.