In the figure of this exercise a block is shown, initially located at rest at a height d = 40cm on a ramp It has horizontal zones and sloped zones. It is known that in inclined areas, the coefficient of kinetic friction between
the block and the surface is negligible; while in the horizontal zones, the coefficient of kinetic friction between the block
and the surface is µk = 0.5.

Determine where the block stops (momentarily or indefinitely). If the block stops on a surface
horizontal, determine the distance L traveled on the horizontal surface. If the block reaches the ramp,
Determine the height H (measured above the lowest horizontal surface) that the block reaches.

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?

How would a small bar magnet be oriented when placed at position x?

A4.0-cm tall light bulb is placed a distance of 32.0 cm from a concave mirror having a focal length of 16.0 cm. determine the image distance