A1kg cart moving at 5 m/s collides and sticks to a 2 kg cart at rest. What is the velocity of the carts after the collision? (Round to one decimal and include units)

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

asthenosphere and convection

small = small current large mag large current

wavelength divides in half and speed stays the same.