What is the net torque on the bar shown in the diagram below, about the axis indicated by the dot?

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy

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

Is the portion of the electromagnetic spectrum that has a frequency just above that of visible light.