Astep-down transformer providing electricity for a residential neighbor-hood has exactly 2680 turns in its primary. when the potential differenceacross the primary is 5850 v, the potential difference at the secondary is120 v. how many turns are in the secondary?

Ms.hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?