A mass (m) attached to a spring that obeys Hooke's law (k) vibrates with its natural period T and amplitude A. The amplitude is doubled. What happens to the frequency

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon

Asystematic approach to problem solving is called a (an)