Apressure gage and a manometer are connected to a compressed air tank to measure its pressure. if the reading on the pressure gage is 11 kpa, determine the distance h between the two fluid levels of the water filled manometer. assume the density of water is 1000 kg/m3 and the atmospheric pressure is 101 kpa. quiz 3
answer with explanation:
when dealing with heavy loads, one needs to take certain precautions in order to avoid or prevent from injuries.
for instance, one should avoid lifting above the shoulder level which can end up pulling your muscle.
also, you can either break the load in parts if possible or get some for lifting heavy bulks.
moreover, one should try to lift with the legs while keeping the back straight and not twisting it.
d is the answer
by increasing magnification you decrease the field of view.
the answer is a.
hope this .
explanation & answer:
assuming a smooth transition so that there is no abrupt change in slopes to avoid frictional loss nor toppling, we can use energy considerations.
initially, the cube has a kinetic energy of
ke = mv^2/2 = 10 lbm * 20^2 ft^2/s^2 / 2 = 2000 lbm-ft^2 / s^2
at the highest point when the block stops, the gain in potential energy is
pe = mgh = 10 lbm * 32.2 ft/s^2 * h ft = 322 lbm ft^2/s^2
by assumption, there was no loss in energies, we equate pe = ke
322h lbm ft^2/s^2 = 2000 lbm ft^2/s^2
h = 2000 /322 = 6.211 (ft)
distance up incline = h / sin(30) = 12.4 ft