Amoving object has a kinetic energy of 20 j. if it’s velocity doubles, it’s kinetic energy would be
1) 40 j
2) 60 j
3) 80 j
4) 100 j

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.