Why can a solution be classified as a mixture?
a. both are made up of two substances that are chemically combined
b. both are allways homogeneous
c. it is made up of only one substance
d. both are made up of tw substences that are not chemicly combined

When a resistor with resistance r is connected to a 1.50-v flashlight battery, the resistor consumes 0.0625 w of electrical power. (throughout, assume that each battery has negligible internal resistance.) what power does the resistor consume if it is connected to a 12.6-v car battery? assume that r remains constant when the power consumption changes.

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?