4. Draw conclusions: The filament radiates both visible light (orange in this case) and invisible light (infrared light). Did the blue glass block infrared light? Explain how you can tell.

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.

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)