They are red because of there pigment called anthocyanins
The Coulomb force is equal to the constant k times the product of charge one and charge two over radius.
F=k((q1q2)/r)
Equal forces or balances forces cancel each other out. One side would have to have more force to move in the direction of least force.
Fibers of the sweater lose electrons
because electrons are leave it.
One of the ways of charging a body is by friction. Charges are transferred from one body to another when an object is rubbed against another. This is charging by friction.
A sweater has negative charges hence when the balloon is rubbed against the sweater, fibers of the sweater lose electrons
because electrons are leave it.
Learn more: brainly.com/question/830809
(3) 10.1 second
Using equation of motion 500 = (0.5)(9.81)t^2. Rearranging, t = sqrt(1000/9.81) = 10.1s
