A block and tackle pulley system, such as the one below, multiplies the effort force that is put into the system. By how much would the block and tackle system below mulitply the effort force?

How much time does it take light from a flash camera to reach a subject 6.0 meters across a room in scientific notation?

A 1400 kg van is traveling at 24m/s when the driver takes her foot off the gas pedal. The car eventually rolls to a stop after 225 meters. Find the force of friction acting on the van.

9. In 35 s ... a pump delivers 55,000 g of oil into a barrel on a platform 25 m above the pump intake pipe. a. Calculate the work done by the pump. 25m b. Calculate the power of the pump.

How much force is needed to provide a 3m/s squared acceleration to a 1 kg object?

How do the gravitational and electrical forces between a proton and a neutron compare

A car accelerates uniformly from 0 to 15m/s in 5 s. Calculate acceleration.

Which device would a sleep researcher use to monitor a sleeping person's brain waves?

An experiment is performed to obtain the value of a physical property. If the true (i. e., correct) value of the property is 50 and the measured (i. e., experimental) value is 32, the percent error of the experimental result is:

White moths were found in huge numbers in the city of Birmingham. These moths could be easily camouflaged by the trees. Because of sudden industrial development, the trees in the city were covered with soot.

What two factors determine how fast weathering occurs