Which of the following is not a terrestrial planet?
a. Earth
b. Mars
c. Saturn
d. Venus
c
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You have observed a star and classified it as a red giant. It has a surface temperature of 3000 K and a luminosity of 105 times that of the Sun. Can you determine its mass by plotting its position on an H-R diagram?
A) Yes, its mass is 0.3 MSun. B) Yes, its mass is 3 MSun. C) Yes, its mass is 30 MSun. D) No, a red giant's mass cannot be determined from its position on the H-R diagram.
An object travels 7.5 m/s toward the West and under the influence of a constant net force of 5.2 kN, 4.3 s later, it is travelling 2.5 m/s toward the East. What is its mass?
A. 2200 kg B. 4500 kg C. 6000 kg D. 12000 kg
What are GUTs?
What will be an ideal response?
No communication is possible across an event horizon
Indicate whether the statement is true or false