A main sequence star cools and expands. It must be entering which stage?

A. white dwarf

B. black dwarf

C. red giant

D. neutron star ... ?

Beryllium, magnesium and calcium all are located in the alkaline earth group. Which of these characteristics do these elements have in common?

The force per meter between the two wires of a jumper cable being used to start a stalled car is 0.244 N/m. (a) What is the current (in A) in the wires, given they are separated by 1.70 cm

14. The ancient geographic setting of an area is known as its A. passive margin. B. phytoplankton. C. paleogeography. D. transgression.

What happens to matter consumed in nuclear fusion?

A solid cone is 10 cm high. where is its center of mass?

A fountain of water and steam that erupts from the ground

A heavy rope, 50 ft long, weighs 0.5 lb/ft and hangs over the edge of a building 120 ft high. how much work is done (in ft-lb) in pulling half the rope to the top of the building?

Does adding a neutron to an atom's nucleus makes it an ion?

What is the difference between a fault-block and upwarped mountains?

Which of the following is not one of the reasons to properly warm up before exercising? A. Develop overall flexibility. B. Increase blood flow to the muscles and raise body temperature. C. Prevent injuries such as strains sprains and muscle cramps.