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Questions in physics

[Open]Which color star is the hottest? A. black B. red C. yellow D. blue

[Open]An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Open]An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Open]Distinguishing Temperatures of Stars. The color and temperature of stars are closely related. Which color star is the hottest?

[Open]An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Open]Who first documented the scientific method? Answer Options: A. Ptolemy B. Francis Bacon C. Charles Darwin D. Aristotle

[Open]Full explanation of types of capacitors

[Open]An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Open]An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Open]What is the kinetic energy of a 16.1 g ball moving at 42.1 m/s? Report your answer with the correct number of significant figures. Do not include units in your answer.