A golf ball is launched at an angle of 45o. The ball has an initial vertical velocity of 12 m/s and an initial horizontal velocity of 12 m/s. Forget air resistance. The ball reaches its maximum height 1.2 seconds after it is launched and lands at the same height that is launched from. The total horizontal distance reached by the golf ball is about

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?

Explain what makes a passenger in a turning car slide toward the door. critical thinking

Efficiency is the ratio of to for a system a)power in to power in b)power in to power out c) power out to power out d) power out to power in