Which of these questions about skateboarding can be answered using measurements? a. how much force is needed to break a skateboard? b. why do people enjoy skateboarding? c. which trick is the most popular? d. should there be a law against skateboarding in parking garages?

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.

A( developed during the process of technology design

Two trains leave a station at the same time, train a travels at a constant speed of 16 m/s. train b starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. after 10.0 seconds, which train has the greater speed?