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Questions in physics

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

[Answered] Select the best answer for the question. 20. Static electricity is a standing electric charge created by A. splitting atoms and releasing protons. B. displacing protons. C. displacing electrons. D. splitting atoms and releasing the electrons.

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

[Answered] Which is one of Edwin Hubble's findings that supports the big bang theory? A. The universe started at a central point. B. Planetesimals formed in debris disks. C. Visible matter only makes up about 5% of the universe. D. The Milky Way is the only galaxy in the universe.

[Answered] Part C The momentum of an object is determined to be $7.2 \times 10^{-3} kg \cdot m / s$. Express this quantity as provided or use any equivalent unit. (Note: $1 kg=1000 g$ ). Value Units

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

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

[Answered] A vector quantity c) always zero 65. The balls of iron and aluminium of same diameter are dipped in water. Which is the correct state? a) The upthrust on the iron ball will be more than the aluminium ball. b) The upthrust on aluminium ball is more than the iron ball. c) The upthrust on both balls will be the same. d) None of the above

[Answered] In practice, photovoltaic systems suffer numerous losses that reduce the actual electricity produced by potential power output. A. no more than 5% B. approximately 15% C. as much as 20% or more D. no less than 50%

[Answered] What is the wavelength of a photon with an energy of 3.38 $x 10^{-19} J$? A. 588 nm B. 510 nm C. 460 nm D. 416 nm