What must a magnet always have?
O A. Two like charges
OB. Two opposite poles
O c. Two opposite charges
OD. Two like poles

What happens to an isotope during radioactive decay?

In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.

Drag the tiles to the correct boxes to complete the pairs. match the jobs with the education requirements. childcare director clinical psychologist concierge cosmetologist vocational school and state licensure arrowright on-the-job training arrowright a ph. d. with licensure or certification, depending on the state in which you live arrowright a bachelor’s degree in early childhood development arrowright