Which of the following statements describes a need or problem that can be solved using the technology design process. 1. a baseball player needs to improve his batting skills.
2. a farmer needs a new piece of farm machinery to harvest his crop.
3. a family needs a garage door that will automatically open when their car approaches.
4. a community needs a new swimming pool.

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

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