For the pulley system shown, the rope must be raised 2 meters for every meter the block is raised. What force must be applied to raise a 500 N weight?

Which are uses of convex mirrors? Check all that apply. -magnifying mirrors for putting on makeup -side-view mirrors on vehicles -hallway safety mirrors -focusing automobile headlights -lenses in sunglasses

If a wave travels 16 meters in 2 seconds, what is its wave speed?

Which statement is true about a polarized object? 1. It gains electrons and becomes negatively charged 2. It gains protons and becomes positively charged. 3. The number of positive and negative charges can be the same. 4. It has to be a metal. 5.

A college student holds the back of his hand near an iron to see if it is hot. Heat is transferred to his hand by ... A Conduction B Convection C Radiation

John and Angie were each pushing a box across the floor. They both push their own box with a force of 30 Newtons; however, Angie's box does not move. What can you infer is the reason Angie's box didn't move? A) No work was done on the box.

A 10N force is exerted on a box moving it 20m in the same direction what is the magnitude of work done on the box

Why does kinetic energy transfer

What was the main purpose of the jacksonborough assembly? A. To identify people who were loyalists during the war B. to plan the location of the new capital of south carolina C. to decide on a revised constitution D. to create a new government

A distance-time graph indicates that an object moves 100m in 4s and then remains at rest for 6s. What is the average speed of the object?

Resistance describes a materials ability to