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In a football game, a receiver is standing still, having just caught a pass. Before he can move, a tackler, running at a velocity of +3.1 m/s, grabs him. The tackler holds onto the receiver, and the two move off together with a velocity of +1.6 m/s. The mass of the tackler is 130 kg. Assuming that momentum is conserved, find the mass of the receiver. 1 kg The lead female character in the movie Diamonds Are Forever is standing at the edge of an offshore oil rig. As she fires a gun, she is driven back over the edge and into the sea. Suppose the mass of a bullet is 0.012 kg, and its velocity is +727 m/s. Her mass (including the gun) is 56 kg.
(a) What recoil velocity does she acquire in response to a single shot from a stationary position, assuming that no external force keeps her in place? 1 m/s
(b) Under the same assumption, what would be her recoil velocity if, instead, she shoots a blank cartridge that ejects a mass of 5.0 10-4 kg at a velocity of +727 m/s? 2 m/s.
A plug-flow reactor has a conversion of A of 90%, and the reaction is first order. If a dispersed plug-flow reactor has the same volume and has a dispersion number, D/vL of 1.0
the pin at B is attached to member ABC and can slide freely along the slot cut in the fixed plate. Neglecting the effect of friction, determine the couple M required to hold the system in equilibrium when.
Design a hollow steel shaft with an inside diameter 1/3 that of the outside diameter. The shaft transmits 200 kW at a speed of 20 Hz. The allowable shearing stress is 55 MPa, and the allowable angle of twist is 1 degree per meter of length.
A 2.45 m wide rectangular channel has a bed slope of 0.0004 and Manning's roughness coefficient n of 0.015. For a discharge of 2.83 m^3/s, determine the type of water surface profile for depths of 1.52 m, 0.61 m, 0.30 m.
What is the maximum population that can be served by a 900 mm diameter main sewer constructed on minimum grade. If sewage flow in the pipe never exceeds a depth of 600 mm, estimate the actual population contributing flow to the main.
The bus B has a weight of 15,000 lb and is traveling to the right at 5ft/s. Meanwhile a 3,000 lb car A is traveling at 4ft/s to the left. If the vehicles crash head-on and become entagled, determine their common velocity just after the collision.
determine the pressure at stagnation point on the nose of the airplane. also determine the manometer reading h for the manometer attached to the static pressure tap within the test section of the wind tunnel if the air velocity
A stream of water of cross-section area A and velocity v1 strikes a plate which moves to the right with a velocity V. Determine the magnitude of V, knowing that A 5 600 mm2, v1 5 30 m/s and P 5 400 N.
Two identical uniform boards, each of weight 40lb, are temporarily leaned against each other. Knowing that the coefficient of static friction between all surfaces is 0.40
How far apart must two 18 , diameter tanks be placed such that their stress overlap is not greaer than 10% of the contact stress at depths of 10, 20, and 30 m
a rectangular piece of steel is 10" wide by 60" long by 3" deep, what is the max tensile force that could be applied to the steel, and what is the total elongation of the steel
after falling from rest from a height of 32 m a 0.45 kg ball rebounds upward reaching a height of 22 m. if the contact
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