All jovian planets have rings around their equators and at least eight moons
Indicate whether the statement is true or false
TRUE
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The focal lengths of the objective lens and the eyepiece of a microscope are 0.50 cm and 2.0 cm, respectively,
and their separation adjusted for minimum eyestrain is 6.0 cm. If the microscope is focused on a small object, what is the distance between the object and the objective lens? A) 0.31 cm B) 0.42 cm C) 0.49 cm D) 0.57 cm E) 0.73 cm
Looking through your telescope tonight, you observe a distant galaxy called RXJ1800 and notice that it is very near in the sky to the bright star Vega. What can you conclude from this observation?
A) RXJ1800 and Vega will both set in the west at about the same time. B) Vega orbits the center of mass of RXJ1800. C) Vega and RXJ1800 must be no more than a few light-years apart. D) If you observe them again in a few nights, RXJ1800 and Vega will be farther apart than they appear tonight.
A circuit breaker often serves the same purpose as a
A) battery B) fuse. C) capacitor. D) all of the above E) none of the above
Name four factors that influence the rate of chemical reactions