The way a rock reflects light is called the rock's

A. streak

O B. luster

O C. cleavage

D. specific gravity

What force must be applied to push a carton weighing 245 N up a 15.0° incline, if the coefficient of kinetic friction is 0.340? Assume the force is applied parallel to the incline and the velocity is constant.

Can i tank of oxygen gas ever be half empty

A ball travels from north to south at 60km/h. After being hit by a bat, it travels from west to east at 60km/h. Is there a change in velocity?

Which best explains the statement "It has no definite volume"? A. Its atoms can widely spread out. B. Its atoms stay closely packed. C. It's highly viscous. D. It's highly crystalline.

In a system, when potential energy decreases, then entropy also decreases. True False

All objects are attracted to each other by the force of

Samantha wants to study circus performance when she gets to college. She has mastered many physical skills already, but she keeps falling short on her jumps.

Is this Conduction, Convection, or Radiation: The top floor of a building is the warmest.

The law that states the volume of gas is directly proportional to its temperature in kelvins if the pressure and the number of particles is constant is * a. Boyle's Law b. Gay-Lussac's Law c. Einstein's law. d. Charles's law.

Which of the following corn pests causes galls to develop on the plant? blight mildew rust smut