Sound & Temperture Questions??? please help me!! 1. A sound wave radiates from a source to all directions, If the power of the sound is 200 watts, then the intensity of the sound wave 100m from the source is? 2. The bulk modulus of water is 0.210 x 10^10 n/m^2 and the density is 100 kg/m^3. The velocity is? 3. The young’s modulus of copper is 1.10 x10^11 N/m62. If density is 8,890 kg/m^3 then what is the velocity? 4. The sound of a jet engine is given as 120 dB. What is the intensity of the jet sound wave? 5. A 3.0 organ pipe is open at both ends. The velocity of sound is 331 m/s. What is the wavelength of the lowest frequency? 6. Compared to the speed of a 100Hz sound, the speed of a 200Hz sound through air is:? 7. If the temperature changes by 36 degrees F, then what is the change in temp. in Celcius. 8. A brass rod is 25.0 cm long at a temp of 20.0 degree C. The of brass is 19.0 x 10^-6 degree C. If the temp. changes to 25 degree C, then the increase in length of the brass rod is:? 9. The temp. of a copper cube increase by 35.0 degree C. The is 17.0 x 10^-6 degree C. The fractoual change in volume is:? 10. One mole of an ideal gas has a volume of 0.0224 m^2 and a pressure of 101.3 x 10^3Pa. What is the absolute temp. of gas? 11. At what temp. are the celcius and Farenheit temp the same? 12. An ambulance is generating a siren at a frequency of 2,000 Hz. The velocity of sound is 345.0 m/s. The observer and the ambulance are traveling toward each other at a velocity of 24.00m/s. If the observer is stationary what is the frequency of the siren perceived by the observer? 13. An ideal gas at a temp. of 34 degree C has a pressure of 2.00 atm and a volume of 2.101 liters. What is the temp. if the pressure is halved (1/2) and the volume is tripled? 14. What is the root mean squared velocity of the helium atom in one mole of an ideal gas at a pressure of 2.00 atm and a temp of 30 degree C (He=4u)? 15. What is the average kinetic energy per particle in 1.00 mol of an ideal gas at a pressure of 1.50 atm and a temp of 20 degree C?