Charges and Fields PhET Lab For this part of the lab, create three arrangements of your choice and draw the field lines you see.
a) 3 point charges, equal, like charges.
b) 4 point charges, 2 positive, 2 negative, all unequal
c) 5 point charges all unequal, 3 positive, 2 negative

According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false?

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

What are the three ways that an object can accelerate