The mass number of an atom is equal to

• the sum of electrons plus neutrons in the atom

• the number of protons, neutrons, and electrons in an atom

• the sum of the protons plus neutrons in the atom

• the number of electrons times the mass of an electron

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?

Why are graphs useful when interpreting data

Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel