Camila has a problem. She wants brighter lights for the outside of her Pet Shop, but if her electricity bill goes any higher it will put her into a higher price bracket which is more than she's willing to pay... how could she get brighter lights without using more electricity?

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?