What is a measure of the quantity of matter

In right ΔPQR, sin P = 3 over 5, and cos P = 4 over 5. What is tan P?

If an object is being pulled by two forces, one 4 N to the left and the other 2 N to the right, what is the net force acting on the object?

What type of force act on a man at room temperature and in a ground?

Force F acts between two charges, q1 and q2, separated by a distance d. If q1 is increased to twice its original value and the distance between the charges is also doubled, what is the new force acting between the charges in terms of F?

In order for a reaction to begin what is required

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.