A block of mass 8.9 kg is suspended from a pulley via a light cord. The pulley has a mass of 5 kg and a radius of 33 cm. Treat the pulley as a disk. What is
the acceleration of the block assuming a 1.1 Nm frictional torque?

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?

Which statement best describes the direction of the buoyant force on any object? a. opposite the force of gravity b. in the same direction as the weight c. in the direction of motion of the object d. opposite the direction of motion of the object

You notice the birds sitting on the electrical wires which of the following explain why the birds don't get shocked