An ultrasound detector emits and pulse and hears'' an echo 2 ms (0.002 s) later off a wall 34.5 cm away. What is the temperature in the room, in Celsius?

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Imagine u are  hiking along а trail wide, dryr canyon where thec outdoor temperature is T=25° C determine how, far you aret away fom the canyon wall, you yell:  Bye" and hear the echo t= 2.45 s later. Then calculate the speed of that sound in m/s  if the speed at 0° C is 330 m/s .  Then how far are u from the canyon wall in m?  If u stood at the same point on a cold day were T2 = -7.5 °C how long is have taken fou u to hear the echo in s?

(II) An organ is in tune at 22.0°C. By what percent will the frequency be off at 11°C?

At sea level, there are two corks that 90cm apart each other. Both of them rise and fall with sea level 40 times in 20second. If one of the cork at the top of sea wave and the other one at the valley of the wave(bottom),there is one hill between two corks, then calculate the wave period (T)and (v)!

then If you stood at the same point on a cold day were T2 = -7.5 °C how long is have taken for you to hear the echo in s?

An earthquake near the Kenai Peninsula, Alaska, creates asingle “tidal” wave (called a tsunami) that propagatessouthward across the Pacifi c Ocean. If the average oceandepth is 4 km and seawater density is 1025 kg/m3, estimatethe time of arrival of this tsunami in Hilo, Hawaii.