Simpson drives his car with an average velocity of 45.2 km/h to the east. How long will it take him to drive 149 km on a straight highway? Answer in units of h. How much time would Simpson save by increasing his average velocity to 95.9 km/h to the east? Answer in units of min.

Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.

The slope of a velocity time graph over any interval of time gives the during that interval

During which interval are the persons represented by the graph not moving? a) 0 to 0.5 hrs b) 1.5 to 2 hrs c) 2 to 2.5 hrs d) 4.5 to 5 hrs