If a hydrogen atom absorbs a photon of the correct wavelength, its electron will move ________ the nucleus.
A. into
B. away from
C. around
D. toward
Answer: B
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What is a gravitational lens?
A. a lens that is affected by gravity B. a massive object that bends the space around it, causing light passing it to bend C. a star that is eclipsed by one of its planets D. an extremely massive refractor telescope
A prism decomposes incident white light into its ________ colors because of refraction.
What will be an ideal response?
Charge of a uniform density (8.0 nC/m2) is distributed over the entire xy plane. A charge of uniform density (3.0 nC/m2) is distributed over the parallel plane defined by z = 2.0 m. Determine the magnitude of the electric field for any point with z = 3.0 m
a. 0.79 kN/C b. 0.17 kN/C c. 0.62 kN/C d. 0.34 kN/C e. 0.28 kN/C
Which type of weather is characterized by spiral storms with winds of up to 300 km/hour?
A) hurricanes B) tornadoes C) tropical depressions D) tropical storms