Plz 1. what is the process whereby stars create elements heavier than hydrogen? a. hydrogenation b. atom splittting c. atomic growing d. nuclear fusion 2. very heavy elements such as gold and uranium are formed by a. hydrogen burning in small stars b. nuclear spltting c. loss of neutrons d. supernova explosions 3. when a star becomes a red giant it will a. shrink and cool b. shrink c. shine hotter d. expand and cool 4. a low mass star that converts helium to carbon is a a. red giant b. black dwarf c. protostar d. white dwarf

Suppose that a cylindrical tank 6 meters high with a radius of 2 meters is filled to the rim with water. the tank is buried so that the top of the tank is 1 meter below ground level. the space above the tank is not filled with water. calculate how much work needs to be done by a pump to pump the water out of the tank up to ground level. (the water weighs 9,800 newtons per cubic meter.)

Your physics assignment is to figure out a way to use electricity to launch a small 6.0-cm-long plastic drink stirrer. you decide that you'll charge the little plastic rod by rubbing it with fur, then hold it near a long, charged wire, as shown in figure p23.56 . when you let go, the electric force of the wire on the plastic rod will shoot it away. suppose you can uniformly charge the plastic stirrer to 10 nc and that the linear charge density of the long wire is 1.0 x10-7 c/m. what is the net electric force on the plastic stirrer if the end closest to the wire is 2.0 cm away?

Answer fast for brainliest! what type of image is formed by a refracting telescope? an enlarged, upside-down virtual image a reduced-size, right-side-up virtual image a reduced-size, right-side-up real image an enlarged, upside-down real image