Between now and 2024, in which year will there be no opportunities for a solar eclipse?
a. 2015
b. 2016
c. 2018
d. 2021
e. 2024
c
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The Sun radiates energy at a rate of 3.86 × 1026 W. Its radius is 7.0 × 108 m. If the distance from the Earth to the Sun is 1.5 × 1011 m, what is the intensity of solar radiation at the top of the Earth's atmosphere?
What will be an ideal response?
The masses of stars are generally in the range of 30 to 0.1 solar masses.
Answer the following statement true (T) or false (F)
A hydrogen atom is in the 6h state. Which one of the following numbers could be an orbital angular momentum quantum number ? for that state?
A) 5 B) 6 C) 7 D) 8 E) 9
A circus performer stretches a tightrope between two towers. He strikes one end of the rope and sends a wave along it toward the other tower. He notes that it takes 0.8 s for the wave to travel the 20 m to the opposite tower. If one meter of the rope has a mass of 0.35 kg, find the tension in the tightrope