A sound wave generated by a musical note has the characteristics presented in the table. What is the missing value?
Medlum
Wave speed
(m/s)
Frequency
(Hz)
Wavelength
Air
346
55
6.3
Glass
5,640
55
102
Aluminum
6,420
55
?
A. 123
B. 55
C. 117
D. 73 The answer is 117

c) up is the direction the magnetic force is acting on the charge.

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods