10. In the ground state, atoms of the elements in Group 15 of the Periodic Table all have the same number of A) filled energy levels (shells)
B) occupied energy levels (shells)
C) neutrons in the nucleus
D) electrons in the valence shell

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

No copying 15 pts how does a free-body diagram tell you about the net force on an object?

If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted