r. Determine the ratio of force exerted by water to oil
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- Calculate the natural frequency of the shear wall carrying concentrated masses at the floor levels of a three-story building as shown in Fig. P21.12. Assume that the deflection shape of the shear wall is that resulting from a concentrated lateral force applied at its tip. Take flexural rigidity, EI=30×10 11 lb⋅in 2 ; length L=36ft .; concentrated masses, m=100lb . sec 2 /in and mass per unit of length along the wall, m ˉ =10lb⋅sec 2 /in 2 .In the figure shown, the position of the water surface represented by Line 2 means that the vessel with liquid translates at maximum acceleration with no liquid spilled out of the tank. TRUE FALSETwo kids are playing on the roller coaster as shown in Figure Q1. When the roller coaster reachespoint B, the speed is 30 m/s at the rate of 3 m/s a) Provide a kinematic diagram with the suitable type of motion in the roller coaster. b) Determine the magnitude of acceleration at point B and the direction of angle correspondto y axis.
- Determine the magnitude of the horizontal reaction (N) at A if P = 255 N and Q = 1990 N. Let x = 2.45 m, y = 2.56 m, and z = 2.06 m. Round off only on the final answer expressed in 3 decimal places. Instead of units, indicate the direction of the horizontal reaction at A: use R if to the right and L if to the left.A vertical conduit is carrying oil (S = 0.95). A differential mercury manometer is tapped into the conduit atpoints A and B. Determine the difference in pressure between A and B when h = 3 in. What is thedifference in piezometric head between A and B?The helicopter flying in Figure 4 with a constant velocity of 180 km/h and is directly above point A when a loose part begins to fall. The part lands 6.5 seconds later at point B on an inclined surface. 16. The vertical motion component of the falling part is A. uniform motion B. non-uniformly accelerated C. uniformly accelerated D. stationary
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- A tennis player strikes the tennis ball with her racket while the ball is still rising. The ball speed before impact with the racket is v1 = 15 m/s and after impact its speed is v2 = 20 m/s, with directions as shown in the figure. If the 60-g ball is in contact with the racket for 0.047 s, determine the magnitude of the average force R exerted by the racket on the ball. Find the angle β made by R with the horizontal. Comment on the treatment of the ball weight during impact.A storage tank has vertical sides and is filled with water to a depth of 1.5 m. On top of the water is found an additional layer of oil (SG = 0.8) with a thickness of 0.5 m. Assuming a unit thickness into the page, calculate the following: (a) Resultant force on the wall of the tank due to the fluids? (b) Moment caused by the fluids along the wall at the base of the tank?Problem 2. Determine the following unknowns on the beam shown below using Area-Moment Method. Consider 150 mm x 150 mm section and E = 80 GPa. Show complete and organized solution. Round-off your answers to two decimal places. QUESTIONS: a. Vertical Reaction at B in kN. b. Moment Reaction at A in kN-m. c. Deflection at point C in mm. d. Deflection at midspan of AB in mm. GIVEN: a. 3.1 b. 18.0 c. 20