The temperature of air in a flow is 725°R. Calculate the speed of sound. 2. The temperature in the reservoir of a supersonic wind tunnel is 625°R. In the test section, the flow velocity is 1835 ft/s. Assuming adiabatic flow, what is the Mach Number in the test section? 3. Assume isentropic flow through a supersonic nozzle. The test-section conditions are p = 2.25 atm, T = 205K, and M = 1.65. What are the reservoir pressure and temperature values? 4. A point in a compressible flow has the following properties: T = 245K, V = 275 m/s, and p = 1.85 atm. At this point, calculate the values of po, To, p* , T* , and M* .

Iron reacts with sulfur to form iron sulfide. if 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

An isolated conducting spherical shell carries a positive charge. part a which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? electric potential inside the shell is constant and outside the shell is changing as 1/r2 both the electric potential and the electric field does change with r inside and outside the spherical shell electric potential inside and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is equal to zero electric field inside and outside the shell is constant (does not change with the position r), but is not equal to zero electric field inside and outside the shell is changing as 1/r (where r is the distance from the center of the sphere) electric field inside is equal to zero and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is changing as 1/r electric field inside and outside the shell is changing as 1/r2 electric field inside is equal to zero and outside the shell is changing as 1/r2 electric field inside and outside the shell is zero electric field inside is constant and outside the shell is changing as 1/r