A certain AM radio wave has a frequency of
1.12x106

Hz. Given that radio waves travel at
2.99x108

m/s, what is the wavelength of this radio wave? (Round your answer to three significant figures.)

Wo audio speakers are placed on a vertical rail. speaker a is placed at head-level while speaker b is place at some variable height, \delta yδy, above speaker a. both speakers receive simultaneous input from a sine-wave generator so the speakers each produce a pure sinusoidal sound wave with a wavelength of 0.531 meters. calculate the lowest height that speaker b can be placed above speaker a to produce a minimum of sound heard by person standing \delta x = 7.86δx=7.86 meters directly in front of speaker a.

When an object is heated it contracts. a. true b. false

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot