A star has a luminosity (power output) of 7.9x1026 W and a diameter of 8.1x108 m. What is its surface temperature? (Give your answer in SI units and include the units in your answer.)

Use the drop-down menus to answer each question. which line represents the movement of a cart with a constant acceleration? a which line represents the movement of a cart with a constant velocity? c which lines represents a cart with no velocity or acceleration? b