It is the end of the semester, so you celebrate by launching your book (closed with rubber bands of course) from a cannon which is inclined at 45° to the horizontal and facing east (you are at the lattitude of a mountn write an essay backed up with the pertinent formulas and calculations that explains qualitatively (and quantitatively, to the extent that you can) the motion of your book through space. consider and comment on the effects d ity near the surface of the earth, air friction, the rotation of earth and pseudo forces, the shape of the book and its rotation, universal gravitation, sp relativity, and chaos theory. it might be to consider a large range of initial velocities: from so small that the book just barely leaves the cannon, to so large that you must consider special relativity ue to: grav-

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?

Why is metal often used for cooking pan?

Acar moves a distance of 50.0 km west, followed by a distance of 64.9 km north what was the magnitude of the displacement of the car, in units of kilometers?