A 7kg object accelerates at 10 metrs at an angle 20 degrees from the horizontal. Calculate the required components of force in the vertical and horizontal directions

The density of a substance is 4.0 g/cm3. if a sample of the substance has a volume of 25 cm3 then what is the mass

What is work? how much work is done to move an object 0 meters?

Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n