Divide 1.49457 × 10^11 meters , the average distance from the sun to earth by 3.00 ×10^8 meters per second and the speed of light in the vaccum. Write your answer in scientific notation with the correct units and the appropriate number of significant figures.

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

Aphase diagram assumes is kept constant.

Which best describes the weak nuclear force? it maintains attraction between the m ecules in liquids. it attracts the nucleus of one atom to the nucleus of another atom. it pulls all matter in the universe together it keeps particles that make up protons and neutrons together