A bar on a hinge starts from rest and rotates with an angular acceleration α = 12 + 5t, where α is in rad/s2 and t is in seconds. Determine the angle in radians through which the bar turns in the first 4.88 s.

A. A PH202 student lives next to a construction site and sees a crane with a wrecking ball demolish the building next door. The wrecking ball swings along the wall between her house and the neighbor's house.

Young's Modulus of elasticity is a) Shear stress/Shear strain b) Tensile stress/Shear strain 9. c) Shear stress / Tensile strairn d) Tensile stress/Tensile strain e) None of these

Which statement best describes metallic bonding? A. A metal atom loses electrons and a nonmetal atom gains them. B. Two nonmetal atom share electrons between them. C. Many atoms give up electrons that can move among the atoms. D.

The more you stretch a rubber band, the more you can feel it pulling back on your fingers. Which of Newton's laws BEST explains WHY? A. first B. second C. third

Which describes acceleration involving only a change in direction?

Charlotte, a 60.0-kg skin diver, shoots a 2.0-kg spear with a speed of 15 m/s at a fish who darts quickly away without getting hit.

All objects are attracted to each other by the force of a. weight. b. mass. c. inertia. d. gravity.

landslides and mudslides caused by lava flows are ___ deadly than the lava flow itself. a. more b. less

3. How is electric potential different than electric potential energy?

Ethan pushes a wooden box across a carpet floor then he pushes the same box across a smooth marble floor why does Ethan find it easier to push the box on the marble floor than carpet floor