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While canoes are normally propelled by paddle, if there is a favorable wind from the stern, adventurous users will sometimes employ a small sail. If a canoe is sailing northwest and the wind applies a 40 lb force perpendicular to the sail in the direction shown, determine the components of the wind force parallel and perpendicular to the keel of the canoe (direction a).
an insulated mixing chamber receives 4 lbms r-134a at 150 lbfin.2 220 f in a line with low velocity. another line with
What is the net torque about the center of the pulley? What is the total angular momentum of the system 3.5 s after release? What is the angular momentum of the pulley at this time?
In Sample Problem 13.2, change the area of the steel bar to 1200 mm2. If the load P = 700 kN is applied and then removed, determine the residual force in each bar.
A spring stiffness k= 500 n/m is mounted against a 10 kg block. if the block is subjected to a force of 1 KN determine the velocity of the block at s=0.3 m when s=0, the block is at rest and the spring is uncompressed. The coefficient of fricktion is..
A 12-module, 20° pinion with 24 teeth drives a tack. If the pinion rotates counter clock wise at 360 rpm. determine graphically the velocity of sliding between the pinion tooth and the rack tooth at the beginning of contact, pitas paint, and at th..
The U.S. Food and Drug Administration (FDA) has long permitted the application of citric acid, ascorbic acid, and other substances to keep fresh meat looking red longer. In 2002, the FDA began allowing meat to be treated with carbon monoxide.
a layer of ice is placed on a flat hot surface with a constant temperature of 70 degc. the initial layer thickness is
consider the steady operation of a refrigeration package for a shipping container on a train truck or ship. the package
The discharge coefficient of a Venturimeter was found to be constant for rates of flow exceeding a certain value. Show that for this condition the loss of head due to friction in the convergent parts of the meter can be expressed as KQ2 m where K is ..
for the deteministic signal yt-23sin6pit4sin18pit sketch the amplitude-frequency spectrum of yt a when the sinal is
The 10-kg mass is set into motion at time t = 0 with the initial conditions x = 20 mm and x? = -110 mm/s, where x is measured from the position where the springs are undeformed.
A 2 cm horizontal jet of water with a velocity of 15 m/s is spraying onto a vertical plate attached to a cart moving opposite the direction of the water jet at 8 m/s. Determine the force required to keep the cart moving at a constant velocity.
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