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Q: 3.4 m 42° Answers: BE = CE = 5.0 KN 2.9 m E i i 4.9 KN BC=CD 2.9 m kN kN
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Q: y = 1.4 M = 3.0 60 A $ = 40° s=20° X
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Q: particle moves along a spiral-shaped curve. Its radial position is described by r = 2t ft and its…
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A: The movement time difference can be calculate by using the fitt's law. MT=a+b×log22DW Here MT is the…
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Q: A rectangular key was used in a pulley connected to a line-shaft with a power of 125 kW at a speed…
A: Power, P= 125 kW= 125000 W Speed, N= 900 rpm= 900/60 rps Shear stress of the shaft, τshaft= 40 N/mm2…
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Q: The bar CD of the system shown has a constant angular acceleration of 20 rad/ss clockwise. At the…
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Q: Particles M and N slide along rods AB and CD as shown in the figure. At the very instant shown,…
A: Given data Velocity of Particle M = 4 m/s Velocity of Particle N = 2 m/s
Q: Item #1 In figure, if velocity at point 1 is 1.65 ft/s and losses are neglected, what should the…
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Q: The block slides down an incline. It starts from rest and, after moving 6 ft, strikes a spring (k=…
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Q: 1-1) What is the total thermal resistance between T₁ and 72 for case (a), Riota. The answer should…
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Q: the molar percentage of N2
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Q: ) A particle which is moving along the x-axis has an acceleration given by a(t) = 3-2t fps² with…
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Q: surface roughness R. (in um) is a
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Q: A rectangular beam experienced a bending moment of 100 kN-m. The width of the beam is 2 m and…
A: Given:M=100 KN.mb=2 mσb=10 MPa
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A: Write the given expression of Local Nusselt Number. NuD=A×ReDB×PrC ...... (1)
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A: As per our guidelines we are supposed to solve only 3 subparts if multiple subparts are asked .…
Q: A particle moves along a spiral-shaped curve. Its radial position is described by r = 2t ft and its…
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Q: A 2 kN/m -5m- Figure 4 3 m 10 kN Į -2 m- B
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Q: The block slides down an incline. It starts from rest and, after moving 6 ft, strikes a spring (k=…
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- Calculate the horizontal force P required to push the 85-lb lawn mower at constant speed. The center of gravity of the mower is at G, and the coefficients of rolling resistance are 0.12 for the front wheels and 0.18 for the rear wheels.The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016, determine the force F required to advance the bar at a constant speed.The block of weight W is pulled by the force P inclined at the angle to the horizontal. Find the smallest force P and the corresponding angle that would cause impending sliding of the block. The angle of static friction between the block and the ground is s.
- A 4.6-kg block is pushed 2.3 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of ? = 30° with the horizontal, as shown in the figure below. If the coefficient of kinetic friction between block and wall is 0.30, determine the following. A figure, drawn from a side view, shows the right side of a rectangular block pushed up against a rough, vertical wall. A force vector F acts on the block and is represented by a diagonal rrow pointing up and to the right, toward the center of the block's left side. The arrow forms an angle ? with the horizontal. (a) the work done by F J(b) the work done by the force of gravity J(c) the work done by the normal force between block and wall J(d) By how much does the gravitational potential energy increase during the block's motion? JThe lower block of mass m2 = 3.2 kg is pulled on by a rope with a tension force of 28 N. The upper block has mass m1 = 1.8 kg. The coefficient of kinetic friction between the lower block and the surface is 0.32. The coefficient of kinetic friction between the lower block and the upper block is also 0.32. What is the acceleration of the 3.2 kg block?In the given figure below, a 3.0 -kg block is sliding down a 60o-rough incline. The speed of the block is 1.68 m/s at the instant it is 5.25 m from an uncompressed spring located at the other lower end of the incline. The spring has a spring or stiffness constant of 120 N/m and the coefficient of kinetic friction between the block and the incline is 0.35. (a) At what speed (in m/s) will the block strike the spring? (b) What would be the maximum compression (in m) of the spring?
- A 130-lb block is pulled up by a constant force P through a cable to move up the inclined surface with a constant acceleration of a = 7 ft/s². The coefficient of kinetic friction between the block and the inclined surface is HK = 0.25. The angle between the cable and inclined surface as shown is 0 = 38⁰. Neglect size of the block, (Figure 1) Figure 30° P 1 of 1 > Part A Determine the magnitude of the force P applied on the cable. Express your answer to three significant figures and include the appropriate units. P= Value Submit Part B μA O Submit Request Answer Provide Feedback P Pearson N = Value Determine the normal force N exerted on the block from the inclined surface. Express your answer to three significant figures and include the appropriate units. μA Units Request Answer wwwww wwwww Hey ? Units Review ? Next >A boy is pulling a sled with a box (at constant ve- locity) up an inclined surface as shown in Fig. mass of the box and sled is 50 kg; the mass of the boy is 40 kg. If the coefficient of kinetic friction between the sled run- ners and the icy surface is 0.05, determine the minimum coefficient of static friction needed between the boy's shoes and the icy surface. The 25 G. 15The 250-lb pipe is being towed behind a truck, as shown in the figure. If θ = 25° and the coefficient of friction of the pipe with the ground is μk = 0.25, determine: a) the tension in the cable b) the acceleration of the truck
- - H1. A wooden block of mass m is pushed over a floor in a straight line in the x direction with a constant velocity vo > 0. At time t = 0, when the block is at position x = 0, it is no longer pushed and the block experiences only a constant sliding friction force F in the negative x-direction until it comes to rest. (i) Write down the equation of motion of the block for t > 0. Calculate the time, t, at which the block comes to a stop and also find the distance, d, travelled by the block from the time when the pushing is stopped to the time when it comes to rest. (ii) Calculate the work done by the friction force from x = 0 to x = d, and then show that it is equal to the change in the kinetic energy of the block.Q1. m-1 kg m,=4 kg The mechanism set up with m,, m, and weightless pulleys is as shown in the figure. Then, the masses are released. Static and kinetic friction between the inclined plane and m, are 0.6 and 0.5 respectively. What are the accelerations of m, and m,? (g = 10 m / s². Frictions and mass of the pulley are ignored.) Q2. 300 m/s .*........ yatay 100 m/s 320 m x=? A plane is flying horizontally at an altitude of 320 m with 300 m/s speed. It launches its bomb with 100 m/s speed relative to the plane as shown. How many meters away from the castle should the plane launch its bomb to hit the castle. (g=10 m/s², sin370=0.6; cos37°=0.8) Q3. 2 kg The object in the frictionless cone in the figure is making a uniform circular motion. Calculate, a) the normal force that the cone exerts on the object, b) centripetal force applied to the body, c) Find the speed of the object.The crate with a mass of 80 kg is being towed by a chain which is directed at 20°. Find the crate acceleration in t = 2 s if the force P = 90t² N, normal force of 661.67 N and the coefficient of kinetic friction = 0.3. O a. 7.51 m/s² O b. 1.75 m/s² O c. 3.50 m/s² d. 2.44 m/s² 20° P