What advantages come from putting a telescope in space?

a. wavelengths of light that do not penetrate Earth’s atmosphere can be seen
b. images may be sharper, without moving air to blur them
c. you are closer to the stars, for a better view
d. all of the above
e. a and b


Ans: e. a and b

Physics & Space Science

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What will be an ideal response?

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What will be an ideal response?

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An LR circuit contains an ideal 60-V battery, a 51-H inductor having no resistance, a 21-? resistor, and a switch S, all in series

Initially, the switch is open and has been open for a very long time. At time t = 0 s, the switch is suddenly closed. When the voltage across the resistor is equal to the voltage across the inductor, what is the current in the circuit? A) 1.4 A B) 0.57 A C) 1.1 A D) 0.86 A E) 1.7 A

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