Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the speakers are 20cm apart. The sound intensity decreases as the distance between the speakers is increased, reaching zero at a separation of 60cm. a) What is the wavelength of sound

A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false

What does the law of conservation of mass state?