Mark places new batteries in his cd player and turns it on. identify the correct energy transformation. a. electrical → chemical → mechanical and sound b. chemical → electrical → mechanical and sound c. sound → chemical → mechanical and electrical d. mechanical → chemical → electrical and sound

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.

In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents