What happens when a particle of matter meets its corresponding antiparticle of antimatter?
a) they can form a complete atom. b) the combined mass of the two particles is completely transformed into energy (photons). c) they fuse to make a heavier particle. d) the question makes no sense, since antimatter does not really exist.

How many hydrogen (h) atoms are in one molecule of sulfuric acid, h2so4? (1 points) 1 2 4 7

Connie has $660,000 she wants to save. if the fdic insurance limit per depositor, per bank, is $250,000, which of these way is distributing her money between three banks will guarantee that all of her money is insured ?

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?