A charged particle is moving perpendicular to a uniform magnetic field. The radius of its path can be decreased most by
1.decreasing the magnitude of the magnetic field.
2.increasing its velocity.
3.decreasing its velocity and increasing the magnitude of the magnetic field.
4.increasing its velocity and decreasing the magnitude of the magnetic field.
3
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Regular disturbances that carry energy through matter or space:
a) Crest b) Wave c) Energy d) Trough
Water flowing through a pipe suddenly comes to a section of pipe where the pipe diameter decreases to 86% of its previous value. If the speed of the water in the larger section of the pipe was what is its speed in this smaller section?
A) 49 m/s B) 42 m/s C) 31 m/s D) 27 m/s
Venus' surface temperature cools off at night, much like Mercury's does
Indicate whether the statement is true or false
Two strings of identical material and radius are stretched with the same tension with their ends fixed, but one string is 8.0 mm longer than the other. Waves on these strings propagate at 420 m/s
The fundamental frequency of the longer string is 528 Hz. What is the beat frequency when each string is vibrating at its fundamental frequency? A) 22 Hz B) 11 Hz C) 16 Hz D) 5.5 Hz E) 27 Hz