Suppose the length of the tube used in our experiment is 4 m and a tuning fork of frequency 150 Hz is used in air where the speed of sound is 340.8 m/s? (Give your answers as integers. For this question, the length of the tube is of the entire plastic cylinder, and not the adjustable length of the air column.) (a) Calculate the number n to find the number of resonances afterwards. n = (b) How many resonances will be observed? N = resonances

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

Avalue that describes how heavy an object is and is related to the force of gravity is

Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. each step is of uniform height . the mass of each object is a multiple of the base mass : object 1 has mass 4..00m , object 2 has mass 1..96m , and object 3 has mass . when the objects are at the bottom of the steps, define the total gravitational potential energy of the three-object system to be zero. if the objects are then relocated as shown, what is the new total potential energy of the system? each answer requires the numerical coefficient to an algebraic expression. each algebraic expression is given using some combination of the variables , , and , where is the acceleration due to gravity. enter only the numerical coefficient. (example: if the answer is 1..23mgd , just enter 1.23)