A magnetic field of 2.00 T is applied to a bubble chamber to make the tracks of protons and other charged particles identifiable by the radius of the circles they move in. If a high-energy proton moves along an arc of a 3.30-m circle, what is the momentum of the proton? [q = 1.60 × 10^-19 C, m = 1.67 × 10^-27 kg]
1.06 C 10-18 kg × m/s
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L dwarfs and T dwarfs are spectral classes of _____
A) brown dwarf stars B) red giant stars C) Y dwarf stars D) white giant stars
Carnot Engine: For a certain ideal Carnot engine, the hot reservoir is 35 C° higher than the cold reservoir. If this engine is to have an efficiency of 20%, what must be the temperature of the hot reservoir?
A. 70.0 K B. 140 K C. 175 K D. 210 K E. 245 K
Why are lunar eclipses more commonly seen than solar eclipses?
A) Lunar eclipses occur at night and are easier to see. B) The Moon goes around the Earth faster than the Earth goes around the Sun. C) Earth casts a bigger shadow than the Moon. D) The tilt of the Moon's axis is smaller than the Earth's. E) The Moon is much closer to Earth than to the Sun.
The size and shape assumed by the crystal faces when a mineral crystal has time and space to grow are known as the mineral's ______________
Fill in the blank(s) with correct word