A basketball is resting on the ground. Which claim about the forces acting on the basketball must be true?

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space. b. we'll know it immediately because it will be brighter than the full moon in the sky. c. we won't know about it until 600 years from now. d. none of the above.

The three classes of rocks are sedimentary, metamorphic, and igneous. how are rocks classified into one of these three groups?