Car p travels due east along a straight highway at a constant speed of 30 m/s. at 9: 00 a. m., p passes exit 17. at precisely the same moment, car q passes exit 16, traveling due west at a constant 26 m/s. slightly later, car p and car q pass the same point. knowing the exits are exactly 7 km apart, how many minutes past 9: 00 a. m. do the cars pass each other?

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.

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car