A playground merry-go-round with a radius of 1.75 m and a rotational inertia of 124.5 kgm² is stationary. A ogre with a mass of 32.5 kg gets on and walks around the edge of the merry-go-round. How many revolutions around the merry-go-round must the ogre make in order for the merry-go- round to make one full revolution? 1.3 revolutions 157revolutions 4.0 revolutions 0.8 revolutions 7.9 revolutions
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
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