Tunnel b at the arnold engineering development center (aedc) in tennessee is often used for determining the flow field and/or the heating rate distributions. the mach number in the test section is 8. if the stagnation temperature is 700 k and the stagnation pressure can be varied from 5.90 * 106 to 4.90 * 106 what is the range of reynolds number that can be obtained in this facility? assume that the characteristic dimension is 0.75 m, which could be the length of a hypersonic waverider model.

i wanna say it’s between b and d, leaning more towards b.

statement #3 on andre"s list is false.

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.