You exert a 100-N force on a pulley system to lift 300 N. What's the mechanical advantage of this system? How many sections of rope support the weight?

Determine the time of an object traveling at 225 m/s over a distance of 56.25 meters

Meredith takes a glass of water outside on a hot summer day and leaves it there for several hours. When she returns, part of the water has evaporated and there is less water in the glass.

A swimmer swims 1000 m in the pool in 8.6 minutes. What was the average speed of the swimmer in m/s?

A bolt is dropped from a bridge under construction, falling 80 m to the valley below the bridge. (a) how much time does it take to pass through the last 17 % of its fall?

The space shuttle is accelerated off its launch pad to a velocity of 525 m/s in 18.0 seconds. What is its average acceleration?

Which one of Newton's Laws fits this statement: More mass means more force need to accelerate?

What type of relationship occurs when one variable decreases while the other variable increases?

The best way to prevent heat exhaustion while exercising is to

The highest frequency radio waves are which type?

When a mass is placed on a spring with a spring constant of 15 newtons per meter, the spring is compressed 0.25 meter. How much elastic potential energy is stored in the spring?