a pendulum is 8m long with a small bob of mass 6kg at its end. it is displaced through an angle of 30° from vertical position. calculate the height through which the bob has been raised and the potential energy it had gained

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.

Which accounts for an increase in the temperature of a gas that is kept a constant volume