7. Milo's electric sewing machine has a power setting of 750W. The sewing machine increases the kinetic energy store of the needle using the electrical pathway. During a 5 minute sewing session, how much as the kinetic energy store of the needle increased by? (assume 100% efficiency)​

Often called simply "velocity," this is the velocity of an object at a particular moment in time.

The solid that is formed and usually sinks to the bottom of a solution is the

On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?