If a rock is thrown horizontally from a 100 m high cliff with a velocity of 10 m/s, how far from the base of the cliff does the rock hit the ground

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

The plum pudding model of the atom state that ?

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.