B is the answer
In an unbalanced atom or isotope, the number of protons doesn't equal the number of electrons
Answer:
The speed of the pendulum is at maximum at x=0
D. Direction, if someone is traveling on an interstate from New York to Boston at 65 MPH, the speed of the car is 65 MPH and the velocity is 65 MPH north-east.
14.58? All numbers are significant except 0 unless 0 is between two numbers