a 5.0 kg tool box is raised from the ground by a rope. if the upward acceleration of the bucket is 2.5 m/s^2, find the force exerted by the rope on the tool box. acceleration due to gravity is 9.8 m/s^2

A solid steel bar of circular cross section has diameter d 5 2.5 in., L 5 60 in., and shear modulus of elasticity G 5 11.5 3 106 psi. The bar is subjected to torques T 5 300 lb-ft at the ends. Calculate the angle of twist between the ends.

A 30.0-kg girl in a swing is pushed to one side and held at rest by a horizontal force / vec{F} F ⃗ so that the swing ropes are 30.0^/circ30.0 ∘ with respect to the vertical.

A substance that contains only one kind of matter is known as a (n)

Heated lithium atoms emit photons of light with an energy of 2.961 * 10-19 j. what is the energy of 1.00 mol of these photons?

A billiard ball with a mass of 1.5kg is moving at 25m/s and strikes a second ball with a mass of 2.3 kg that is motionless. Find the velocity of the second ball if the first ball stops when it strikes the second ball.

You are skateboarding and push back with one leg, and, as a result, the skateboard moves forward. Which law of motion is being described in this scenario?

How do you relate and explain a planet's distance from the Sun to things like the time of their year & their average tempareature

Describe the steps used by conventional sewage treatment plants to break down our sewage into a relatively safe effluent that gets dumped into a river, lake, or ocean.

During melting, the forces of attraction between the molecules A) become weaker. B) remain the same. C) become stronger. D) become stronger and then weaker.

What law states that when matter undergoes a physical or chemical change, no atoms are created or destroyed?