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1.Why do the X components of the reaction forces need to be considered when resolving the moment about point A?
2.A wood mallet has a cylindrical head 6 inches long and 3 inches in diameter. If the cylindrical head is 1 inch in diameter how long must it be for the mallet to balance at a point 6 inches from where the handle enters the mallet? (use 40 lb / ft cubed) for wieght of wood.
3.A tube is placed in a certain liquid and its capillary rise is 1.5cm. What would be the rise of the same tube were placed in another liquid that was half the ? and half its ?. Assume T = 0°.
4.A 200 lb divers stands on the end of the diving board. determine the shear force and bending moment diagrams
calculate the amplitude F0 of the sinusoidal excitation force that is necessary to produce a steady-state vibration with a velocity amplitude of 10 m/s at resonance. what is the corresponding amplitude of the acceleration
A wheel has an initial clockwise angular velocity of 12 rad/s and a constant angular acceleration of 3 rad/s2. A) Determine the number of revolutions it must undergo to acquire a clockwise angular velocity of 15 rad/s.
What are the effects of water pollution on the components of the hydrologic cycle?
you are studying a 3-km stretch of stream that is about 35 m wide. a gaging station onnbspthe stream provides you with
The bar is 1m long and its weight, W, acts at its midpoint. The angle is a=30 degrees, and the the spring constant k= 100N/m. The spring in its current position is 1.52m long, and its unstretched length of 1.25 m occurs when the bar is vertical a=..
The 90-lb boy and 75-lb girl wald towards eachother with constant speed on a 330-lb cart with frictionless wheels. assume that the cart was at rest befor the boy and girl start walking.
Determine the young's modulus for a metal whose elasic limit isone half of its UTS. The material has a strain of 0.002 at theelastc limit and a gauge length of 50mm. The UTS of the metal is300 MPa.
For the case of the uniaxial compression, determine the maximum shear stresses that exist at that piont. Identify the planes on which they act by drawing the orientation of the element for these shear stresses. Show all stresses that act on the eleme..
atmospheric air at 1.01 bar 30 c and 60 percent relative humidity flows over a set of cooling coils at an inlet flow rate of 1500 m^3/min the liquid which condeness is removed from the system at 17 c
The water depth before the jump is 0.4 m and after the jump is 1.7 m. Compute the flow rate in the channel, the critical depth and the headloss in the jump.
Estimate the buoyant force on 10'x10' by 2' deep balsa (SG=0.2) raft with you in it. How deep is it in the water. Be sure to draw well leveled schematic of the system.
In what direction did the cue ball move after the collision? What percentage of its kinetic energy did the cue ball impart to the eight ball?
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