Calculate the approximate number of seconds that a(n) 30-year-old student has lived

9.5 × 10^8 s

Physics & Space Science

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What does the Q represent in the stream discharge equation

What will be an ideal response?

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Following selection rules for multi-electron atoms, imagine a titanium atom in the ground state with two electrons in each of the 3d and 4s shells. In the 3d shell, which of the following scenarios is least likely to be true?

a. The electrons orbital angular momentum is aligned. b. The electrons' spins are antialigned to minimize energy. c. The spin and angular momentum of the electrons are aligned to minimize energy. d. The energy levels of the electrons are split due to LS coupling. e. The magnetic quantum numbers of the electrons are either both positive or both negative.

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Physics & Space Science

A certain transformer doubles input voltage. If the primary coil draws 10 A of current, then the current in the secondary coil is

A) 2 A. B) 5 A. C) 10 A. D) 25 A. E) none of the above

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Physics & Space Science

Imagine that at a certain place in a river, water moves horizontally to the left. Consider an oriented sur-face that faces in a direction that is 30° upward of right. The flux of water velocity through this surface is

A. positive. B. negative. C. zero. D. Impossible to determine from the given information

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Physics & Space Science