P A B 500 mm
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A 60-kg cabinet is mounted on casters that can be locked to prevent their rotation. The coefficient of static friction between the floor and each caster is 0.35.
1. If h = 600 mm, determine the magnitude of the force P (in N) required to move the cabinet to the
right, if all the casters are locked. (ANSWER: 206)
2. If h = 600 mm, determine the magnitude of the force P (in N) required to move the cabinet to the right if the casters at B are locked and the casters at A are free to rotate. (ANSWER: 178)
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- 100 mm В A 30 mma)The bore of each cylinder in a six-cylinder car engine is 45 mm and the stroke for each piston is 125 mm. calculate the cubic capacity of the engine in cubic centimetres (cm3 ); and calculate the clearance volume per cylinder for a compression ratio, r, of 8.75. b) The bore of each cylinder in a four-cylinder four-stroke internal combustion engine is 38 mm and the stroke of each piston is 165 mm. During testing, the engine runs at 180 revolutions per minute (rpm) with a pressure-volume indicator diagram showing a mean net area of 3.4 cm2 and a diagram length of 1.2 cm. The pressure scale on the indictor diagram is set to 150 kN/m2 per cm. Calculate the mean effective pressure (m.e.p) and the indicated power developed by this four-cylinder four-stroke engine.Using unity conversion ratios, show that 1.00 lbm weighs 1.00 lbf on earth
- P1.60 A block of weight W is being pulled over a table by another weight Wo, as shown in Fig. P1.60. Find an algebraic formula for the steady velocity U of the block if it slides on an oil film of thickness h and viscosity u. The block bottom area A is in contact with the oil. Neglect the cord weight and the pulley friction. Assume a linear velocity profile in the oil film.0.5 m 1.5 m 1800 N 1350 N A 60 mm- Figure Q1(b)2.1 Please help. Written on paper not typed on computer or keyboard please. Need help both questions. Please include all units, steps to the problem and information such as its direction or if it is in compression or tension. Thx.
- A robotic-wheeled vehicle that contains science instruments is used to study the geology of Mars. The rover weighs 416 lb on Earth. a. In the USCS dimensions of slugs, what is the rover's mass? (Express your answer using four significant figures.) slugs m = In the USCS dimensions of lbm, what is the rover's mass? (Express your answer using three significant figures.) |lbm m = b. What is the weight of the rover as it rolls off the lander's platform (the lander is the protective shell that houses the rover during landing)? The gravitational acceleration on the surface of Mars is 12.3 ft/s?. (Express your answer using four significant figures.) w = lbI need help with this problem.You need to assess fragility, design a package system, and experimentally validate your design for a 55 inch, Sony - LED - 4K Ultra HD TV. The product weighs 49.6 lb, and has dimensions 48.5 x 30.0 x 2.5 inches. MSRP: $ 1,799,99. A cushion system needs to be designed for an expected single 24 inch drop. Using the cushion curves provided in the appendix, select the thickness, static load, and area of the cushion material required to protect the TV using the least material. Assume the dimensions of the product represent usable surfaces of the product for cushion material contact. a. 2.0 in thick, static load, 1.7 psi , 29.2 in2 b. 1.5 in thick, static load, 0.5 psi , 59.2 in2 c. 1.5 in thick, static load, 1.5 psi , 25.1 in2 d. 1.5 in thick, static load, 0.8 psi , 62.0 in2 e. 2.0 in thick, static load, 0.8 psi , 62.0 in2