Acar traveling at 105 km/h strikes a tree. the front end of the car compresses and the driver comes to rest after traveling 0.80 m. (a) what was the magnitude of the average acceleration of the driver during the collision? (b) express the answer in terms of “g’s,” where 1.00 g = 9.80 m/s^2.

The density of a substance is 4.0 g/cm3. if a sample of the substance has a volume of 25 cm3 then what is the mass

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.

How will the system respond to a temperature increase?