Anylon guitar string is fixed between two lab posts 2.00 m apart. the string has a linear mass density of μ=7.20 g/m and is placed under a tension of 160.00 n. the string is placed next to a tube, open at both ends, of length l. the string is plucked and the tube resonates at the n=1 mode. the speed of sound is 343 m/s. what is the length of the tube?

1. how much energy is needed to raise the temperature of 40.0 g of argon from 25c to 40c? the specific heat capacity of argon is 0.520 j/(g·k) 2a. 23.0 ml of 0.100 m hcl (standard) are added from a buret to neutralize 50.0 ml of an unknown basic solution. 2b. if the oh- produced in the previous reaction came from ca(oh)2, then what is the molarity of the ca(oh)2? 3.calculate the new freezing-point of a solution when 60.5 grams of cacl2 solute is dissolved in 0.612 kg of water. 4. what is the maximum number of moles of alcl3 that can be produced from 5.0 mol al and 6.0 mol cl2? 5. a sample of oxygen gas has a volume of 150 ml when its pressure is 0.923 atm. if the pressure is increased to 0.987 atm and the temperature remains constant, what will the new volume be? 6. nitrogen gas in a closed container at a temperature of 100.0 oc and 3.0 atm is heated to 300 oc. what is the pressure of the gas at the higher temperature?

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

Which of the following statements correctly describes a transformer?