When a pair of balanced forces acts on an object, the net force that results is

a. equal to zero.

b. equal in size to one of the forces.

c. greater in size than both forces combined.

d. greater in size than one of the forces.?

Which statement about friction is true? 1. Friction increases the speed of objects in motion. 2. Friction acts in a direction opposite to an object's motion. 3. Friction between objects depends solely on the types of surfaces involved

What kind of rock is full of tiny connected air spaces

Calcium metal reacts with a potassium chloride solution to form calcium chloride and potassium ions. Classify this reaction. Ca (s) + 2KCl (aq) → CaCl2 (s) + 2K + (aq)

What is the structure of a magnet?

What is tan - 1 (0.52) ?

At one instant, the center of mass of a system of two particles is located on the x-axis at 2.0 cm and has a velocity of (5.0 m/s) ˆx. One of the particles is at the origin. The other particle has a mass of 0.

A 91 kg block is released at a 6 m height as shown. The track is frictionless. The block travels down the track, hits a spring of force constant k = 1968 N/m. The acceleration of gravity is 9.

Why do charges build up on clothing in an electric dryer?

Two plates with area A are held a distance d apart and have a net charge + Q, and - Q, respectively. Assume that all the charge is uniformly distributed on the inner surfaces of the plates.

A circuit contains two 2,000 resistors connected in parallel. What is the total resistance of the circuit?