On a Hertzsprung-Russell diagram, where would you find stars that have the largest radii?
A) upper right B) lower right C) upper left D) lower left
A
You might also like to view...
A 2.5-kg object falls vertically downward in a viscous medium at a constant speed of 2.5 m/s. How much work is done by the force the viscous medium exerts on the object as it falls 80 cm?
a. +2.0 J b. +20 J c. ?2.0 J d. ?20 J e. +40 J
If the mass of a proton is 1.67 × 10^?27 kg, what is the rest energy of the proton? (c = 3.00 × 10^8 m/s and 1 eV = 1.6 × 10^?19 J)
a. 1.2 × 10^8 eV b. 3.7 × 10^8 eV c. 4.1 × 10^8 eV d. 9.4 × 10^8 eV
Which of the following is not a characteristic of the seasons on Mars?
A) Global winds tend to blow from the summer pole toward the winter pole, sometimes initiating global sand storms. B) The polar caps shrink in summer and grow in winter. C) As on Earth, the seasons are caused primarily by axis tilt and orbital distance has virtually no effect. D) The seasons last almost twice as long on Mars as on Earth.
Why are neutrinos so difficult to detect?
A) They have a tendency to pass through just about any material without any interactions. B) They are extremely rare. C) They have no mass. D) No one knows; this is the essence of the "solar neutrino problem."