I dont understand this example. Im studying for a test. Free thumbs up As shown in Fig. P-540, two blocks each weighing 20 kNand resting on a horizontal surface, are to be pushed apartby a 30° wedge. The angle of friction is 15° for all contactsurfaces. What value of P is required to start movement ofthe blocks? How would this answer be changed if theweight of one of the blocks were increased by 30 kN?15° 15°20 kN20 kNMATHalino.comMOɔ.onil6HTAMFigure P-540

We simply distort the equilibrium in the horizontal direction to have movement coefficient of…

Answered: As shown in Fig. P-540, two blocks each…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A 5 kg box on a horizontal table is pushed by a horizontal force of 15 N as shown on the right. If the coefficient of friction is 0.4, will the box move?
A 200 g block is pressed against a spring of force constant 1.4 kN/m until it is compressed by 10 cm. The spring rests on a horizontal plane. Determine how much the block moves before stopping if the coefficient of friction is 0.3.
How does the diameter of an air cylinder affect the force output of a cylinder? If the diameter of an air cylinder doubles, what happens to the output force?
A block P of weight 50 N is kept on a plane and now pulled so that the extension in the spring is 10 cm. The stiffness of the spring is 4 N/cm and the coefficient of friction between the block and the plane is μ = 0.3. Find (i) the velocity of the block as the spring returns to its undeformed state and (ii) the maximum compression in the spring. ( By principle of conservation) ( answer= maximum compression is 2.5cm) ( explain with proper steps)
A mass of 4.0 kg is placed on a spring which has a spring constant of 256 N/m and compresses it a length of 87 cm from its equilibrium position. This set up is on an incline at an angle of 40º above the horizontal and there is a coefficient of kinetic friction of 0.17 between the mass and the surface. What will the speed of the mass be when it has moved a total distance of 1.0 m up the incline from its starting position. (Use g = 9.8m/s2 and round answer to 1 decimal place.)
.A belt 200 mm wide and 7 mm thick drives a pulley at belt speed of 25 m/s. The density of the belt is 980 kg/m3 and the coefficient of friction between the belt and pulley is 0.23. Given that the angle of contact of pulley is 2π/3 and the allowable stress of the belt is 1.8 MPa, determine the tension on the slack side of the belt (T2) in N
A man pushes on a refrigerator. Determine if the refrigerator moves or if the man's shoes slip. If the refrigerator moves, determine whether it slips or tips. Support your answer analytically! Given:Mfridge = 100 kg, Mman = 80 kg, L1 = 1.5 m, L2 = 1 m, L3 = 0.75 m, µfridge-to-floor = 0.3, µshoes-to-floor = 0.4
A 9-m-diameter hot air balloon is neither rising nor falling. The density of atmospheric air is 1.3 kg/m3. The total mass of the balloon including the people on board is (a) 496 kg (b) 458 kg (c) 430 kg (d ) 401 kg (e) 383 kg
Two pistons of a hydraulic lift have diameters of 60 cm and 5 cm. What is the force exerted by the larger piston when 50 N is placed on the smaller piston?
How do the principles of kinetics influence innovations in transportation? How is the motion of the objects describe through graphs?
Consider two scenarios. A ball of weight 10 N rolls on the floor and a block of weight10 N slides on a table. In which case will the applied force required to just set the body in motion greater? Why?
A gas is confined in a cylinder with a diameter of 1.25 ft by a piston, on which a counterweight rests. Together, the piston and the counterweight have a mass of 250 lbm. The local gravitational acceleration is 32.169 ft/s^2, and the atmospheric pressure is 30.12 in Hg. a. What is the force in (lbf) exerted on the gas by the atmosphere, piston, and counterweight, assuming there is no friction between the piston and the cylinder? Answer: F = 2,864.2 lbf. b. What is the gas pressure in (psia)? Answer: Pabs = 16.208 psia. c. If the gas in the cylinder is heated, it expands, pushing the piston and counterweight upward. If the piston and counterweight are lifted by 1.7 ft, what is the work done by the gas in (ft-lbf)? What is the change in potential energy of the piston and counterweight? Answer: w = 4,869.1 ft-lbf, and ΔEp = 424.9 ft-lbf. traduza para o inglês: Um gás é confinado em um cilindro com 1,25 (ft) de diâmetro por um êmbolo, sobre o qual…

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