What characteristics of a sound wave are related to the "pitch" of a musical note? (There could be more than one correct choice.)

A) amplitude
B) wavelength
C) frequency
D) period


B, C, D

Physics & Space Science

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Wave interference occurs for

A) sound waves. B) light waves. C) water waves. D) all of the above E) none of the above

Physics & Space Science

In a velocity selector having electric field E and magnetic field B, the velocity selected for positively charged particles is v = E/B. The formula is the same for a negatively charged particles

Indicate whether the statement is true or false

Physics & Space Science

Two spheres are cut from a certain uniform rock. One has radius 4.50 cm. The mass of the other is five times greater.

Find its radius.

Physics & Space Science

Observations of the cosmic background radiation from the COBE satellite revealed tiny variations in its temperature from one place to another (corresponding to a few millionths of a degree Kelvin)

Indicate whether the statement is true or false

Physics & Space Science