A cubical gaussian surface is bisected by a large sheet of charge, parallel to its top and bottom faces. No other charges are nearby. Over how many of the cube’s faces is the electric field zero?
1.0
2.2
3.4
4.6
1
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A rain shadow is associated with
A) the leeward slope of a mountain. B) orographic lifting. C) descending dry air. D) descending dry air on the leeward slope of a mountain.
The diagram represents energy levels in a hydrogen atom. The labeled transitions (A through E) represent an electron moving between energy levels. If an electron at level 1 in a hydrogen atom absorbs 10.2 eV of energy, it moves to level 2. What typically happens next?
A) The electron returns to level 1 by emitting an ultraviolet photon with 10.2 eV of energy. B) The electron jumps to level 3 as soon as it absorbs any additional energy. C) The electron remains in level 2 until it absorbs an additional 10.2 eV of energy. D) A different electron drops into level 1 because it is now unoccupied.
A one-kilogram aluminum ingot is heated from 0°C to 100°C. By what amount does its mass change? The specific heat of aluminum is 900 J/(kg?K)
A) Its mass does not change. B) Its mass increases by 0.50 × 10-12 kg. C) Its mass decreases by 0.50 × 10-12 kg. D) Its mass increases by 1.0 × 10-12 kg. E) Its mass decreases by 1.0 × 10-12 kg.
An aircraft approaches a runway that runs directly east as a strong wind blows out of the south. The direction that the aircraft should aim in order to land is east of north
Indicate whether the statement is true or false