Which of the following statements describes a way that simple machines make work easier?

reduce the amount of energy needed to perform a task

change the direction of the input force

reduce the size of the input force needed to perform a task

A 10.0-g bullet is fired into a 200-g block of wood at rest on a horizontal surface. after impact, the block slides 8.00 m before coming to rest. if the coefficient of friction between the block and the surface is 0.

One time-honored but slightly unpleasant way in which a hobbyist determines how much energy is left in a 9-V battery is to touch both of its terminals to his tongue briefly.

the atomic number is consider a unique atom and element identifier. Describe the associated subatomic particle, and how it can be used to identify the atom.

A race car exerts 19,454 n while the car travels at a constant speed of 201 mph, 91.36 m/s. what is the mass of the car?

Does gravity increase or decrease with greater distance?

A skydier jumps out of a hovering helicopter so there is no forward velocity. what is the skydivers acceleration/11170085/84c6e0eb? utm_source=registration

A book of 500 leaves has a mass of 1kg if its thickness is 5cm what are the mass and thickness of each leaf

Why does a curve on a distance-time graph indicate acceleration? an increasing amount of time passes for each unit of distance a decreasing amount of time indicates a decreasing number of distance units an increasing distance is traveled during each

What would happen if you dropped two balls of different masses but equal shape and volume from a building?

A bag of sports equipment has a mass of 10.0 kilograms and a weight of