Ametal sphere is insulated electrically and is given a charge. if 21 electrons are added to the sphere in giving a charge, how many coulombs are added to the sphere? a metal sphere is insulated electrically and is given a charge. if 21 electrons are added to the sphere in giving a charge, how many coulombs are added to the sphere? -3.4 × 10-20 c -21 c -34 c -3.4 × 10-18 c

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!

What is the largest meteoroid that has collided with this planet