2. Weight is a force from gravity pulling down on any object with mass.
True
False

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

What is special about a dc circuit ?

Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?