A group of campers travels to a cabin which has no electrical power. In order to provide for a heater and lights, which device would be appropriate? a resistor, an insulator, a generator, or a voltmeter

Note: the following questions are unrelated to the balmer series or the martian. refer to your course notes. a sun-sized star will spend most of its lifetime as a: white dwarf b. red giant c. protostar d. main-sequence star

What is the length x of the side of the triangle below? (hint: use the cosine function)

Select the word from the list that best fits the definition classification of most stars on the h-r diagram