What is the difference in the charges on a balloon rubbed in your hair and a glass rod rubbed with silk? why?

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.

Avehicle accelerates from 0 to 30 m/s in 10 seconds on a straight road

The chart shows daniela’s run through her race. what is her velocity? 1.5 m/s 2 m/s 2.5 m/s 5 m/s