A forklift applies a force of 2,000 N to raise a box 3m. 1. If the box weighs 1,500 N, how much work does the force of gravity do on the box?

2. Is the work done by gravity positive or negative?

3. What is the total work done on the box?

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)

Acar travels 40m in 8 seconds find the car speed

When using the scientist method, which step comes last?