25 POINTS Check all the boxes that correspond to a particle emitted during a radioactive decay: *
Proton
Atom core
Electron
Boson
Positron
Sound waves
Neutron
Gamma ray
Alpha particle

Which notation is used to represent an alpha particle? a. b. c. d.

Which is special about a dc circuit ? a. it has both series and parallel components b. it has only series or only parallel components c. charge moves in a single direction d. charge moves back and forth quickly

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?