What is the best time to see the corona? Why is it so faint, if it is so hot?
What will be an ideal response?
In a total solar eclipse, the faint corona is seen briefly. It is so hot that most of its energy is X-rays, not light, and it is much less dense than the photosphere.
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Parallel-Plate Capacitor: The potential difference between the plates of an ideal air-filled parallel-plate capacitor with a plate separation of 6.0 cm is 60 V. What is the strength of the electric field between the plates of this capacitor?
A. 60 V/m B. 500 V/m C. 1000 V/m D. 2000 V/m E. 3600 V/m
When writing in the inverted pyramid style, the first paragraph should include the "who, what, when, where, and why" of the topic.
Answer the following statement true (T) or false (F)
Which of the following is the smallest unit of heat energy?
A) Btu B) calorie C) kilocalorie D) Joule
What is the distance from the moon to the point between Earth and the Moon where the gravitational pulls of Earth and Moon are equal?
The mass of Earth is 5.97 × 1024 kg, the mass of the Moon is 7.35 × 1022 kg, the distance between Earth and the Moon is 3.84 × 108 m, and G = 6.67 x 10-11 N•m2/kg2. A) 3.45 × 108 m B) 3.83 × 107 m C) 4.69 × 106 m D) 3.83 × 106 m E) 4.69 × 107 m