Solving a physics problem is . .
a. . meant to happen very quickly, as long as you have memorized the correct equation and answer.
b. . a basic "plug-and-chug" process, in which you are given some numbers, you "plug" them into an equation, and an answer is given.
c. . a step-by-step process that takes time, and is essential for learning physics concepts.
d. . an optional activity, not really required in order to understand the physics concepts.

In a wind tunnel the speed changes as the cross sectional area of the tunnel changes. if the speed in a 6' x 6' square test section is 100 mph, what was the speed upstream of the test section where the tunnel measured 20' x 20'? use conservation of mass and assume incompressible flow. conservation of mass requires that as the flow moves through a path or a duct the product of the density, velocity and cross sectional area must remain constant; i.e., that ova-constant. a model is being tested in a wind tunnel at a speed of 100 mph if the flow in the test section is at sea level standard conditions, what is the pressure at the model's stagnation point? (a) the tunnel speed is being measured by a pitot-static tube connected to a u- tube manometer. what is the reading on that manometer in inches of water? (b) at one point on the model a pressure of 2058 psf is measured. what is the local airspeed at that point?

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

How to tell if two objects are in thermal equilibrium 1.the objects have the same temperature 2.the objects are the same size 3.the objects are touching each other 4.the objects temperatures are changing