Two speakers, each with a power output of 0.430 W, are mounted facing each other and 39.8 m apart. If the speakers are each broadcasting an amplified static buzz uniformly in all directions. Determine the total sound intensity a person hears when they are midway between the speakers.

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 law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

14. a body is projected with velocity vi from a. at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is