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1.A circular hatch is located in a sloping wall of a water-storage reservoir, where the wall slopes at ? = 35° to the horizontal, the radius of the hatch R is 840 mm, and the center of the hatch yC is 3 m below the water surface (measured along the sloping wall). Find the magnitude and location of the resultant hydrostatic forces on the hatch.
2.A 3000-lb car has a maximum speed (at sea level and on a level, paved surface) of 140 mi/h with 16-inch–radius wheels, a gear reduction of 3.5 to 1, and a drivetrain efficiency of 92%. It is known that at the car’s top speed the engine is producing 220 ft-lb of torque. If the car’s frontal area is 25 ft 2 , what is its drag coefficient?
You have a standard card deck of 52 cards. Select one card, find P[heart/ace]. B.) You have a deck of 51 cards, which happens to be missing the eight of diamonds, Find P(heart/ace). C.) In the situation above find P (spades/8).
Evaluate the pressure head at point a and determine the vertical effective stress at point b and evaluate the lateral pressurein the brown clay
The terrain in the in the immediate area does not allow for level measuring area. if the suveyour verifiies the diffence in elevation between the point measured from. and the point measured to, as 8.93 feet,
A race car C is being tracked via telemetry. The on-board acclerometer records and acceleration level of -.7get+.5gen. If you know that the v at this instant is 200km/hr, what is the tracks radius of curvature at this instant
An L2 steel strap having a thickness of 0.125 in. and a widthof 2 in. is bent into a circular arc of radius 600 in. Determine the maximum bending stress in the strap.
Determine the specifications (unstretched length and springconstant k) for the elastic cord to be used at a bungee-jumping facility. Participants are to jump from a platform 150 ft above the ground.
A pipe carrying oil of specific gravity (SG = 0.877) changes in size from 150 mm at section E to 450 mm at section R (E and R are arbitrary designations of the two points in the system). Section E is 3.66 m lower than R
If the difference in weight between the two baskets must greater than 15 lb they will not have the strength to operate the pulley. The King weighs 195 lb, the princess weighs 105 lb, and the prince weighs 90 lb.
It has been reported that a peat biofilter treating styrene had a maximum elimination capacity of 100 g/m^3-hr,and a critical load of between 60-75 g/m^3-hr. Further investigation reveals that a 97% efficiency was acheived at a load 40 g/m^3-hr.
Determine by direct integration the polar moment of inertia of the semiannular area shown with respect to point O b) Using the result of part a, determine the moments of inertia of the given area with respect to the x and y axes
the device shown is used in the semiconductor industry to polish silicon wafers. the wafers are placed on the faces of
A 9 gram bullet is fired horizontally at a tree and is brought to a halt right before it exits the tree. the tree is 90cm thick and exerts a resistive force of 16000N on the bullet as it travels through the tree
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