you can subtract the atomic number from the mass number to find the number of neutrons.
Answer:
Unbalanced forces change the motion of an object. If an object is at rest and an unbalanced force pushes or pulls the object, it will move. Unbalanced forces can also change the speed or direction of an object that is already in motion.
-2. This is because it is gaining electrons. Electrons are negative. Therefore it is a negative charge.
13.1 km/s, that is the mean orbital velocity of Jupiter around the sun
(Mass does not affect the pendulum's swing. The longer the length of string, the farther the pendulum falls; and therefore, the longer the period, or back and forth swing of the pendulum. The greater the amplitude, or angle, the farther the pendulum falls; and therefore, the longer the period.)
