A rectangular Brock measuring 16cm×10cm×4cm has a mass of 1760g. What will be the mass of a Brock of the same metal measuring 12cm×8cm×2cm?

What is the momentum of a 2 kg object moving at 15 meters per second

Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.