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A snowplow mounted on a truck clears a path 12 ft through heavy wet snow, as shown in Figure P5.83. The snow is 8 in. deep and its density is 10 lbm/ft3 . The truck travels at 30 mph. The snow is discharged from the plow at an angle of 45° from the direction of travel and 45° above the horizontal, as shown in Figure P5.83. Estimate the force required to push the plow.
Many bike computers tell the ride what altitude they are at and how the altitude is changing using a basic barometer and pressure differences. A biker rides on a hill and the computer reads barometric pressures of 475 mm Hg at the start and 530 mm Hg..
what is the pressure associated with this radiation? Express the answer both in pascals and in atmospheres.
a material is found to have a tenth-thickness of 2.3 cm for 1.25-mev gamma rays. a what is the linear attenuation
an object whose mass is 50 lb attached to a rope wound around a pulley. the radius of the pulley is 3 in. if the mass
a piston-cylinder device contains 0.8 kg of an ideal gas. the gas is cooled at constant pressure until its temperature
Estimate the rupture lifetime (in hrs) for some cylindrical component originally 10.5 mm in diameter and 496 mm long that is fabricated from a low carbon-nickel alloy; assume that it is to be exposed to a tensile load of 6300 N at 538°C. The logarith..
the motion of a particle is defined by the position vector r=a(cos t + t sin t)i + A(sin t-t cos t)j, where t is expressed in seconds. Determine the values of t for which the position vector and acceleration are.
A 1-ton weight rests on a horizontal floor. The coefficient of static friction between the weight and the floor is 0.35.
The position of a particle ona straight line is s=2t^2-12t5 (ft), where t is in seconds.
A 60-kg iron block and a 39-kg copper block, both initially at 76oC, are dropped into a large lake at 9oC. Thermal equilibrium is established after a while as a result of heat transfer between the blocks and the lake water. Determine the total entrop..
When the gear rotates 20 revolutions, it achieves an angular velocity of ? = 30 rad/s, starting from rest. Determine its constant angular acceleration and the time required
A dormitory at a large university, built 50 years ago, has exterior walls constructed of Ls = 25-mm-thick sheath- (a) Show the thermal circuit representing the steady-state heat transfer situation. Be sure to label allelements, nodes, and heat rates...
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