400 N 30 kg MK = .7 25°
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13-2. Determine the acceleration of the 30-kg block shown in Figure P13–2 above.
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- m1 = kg/s m2 = kg/s m3 = kg/sChange 2.223 kJ/kg-K to J/g-KThe vehicle in the shown figures moves from point 1 to point 2 as follows: V1 = 103 m/s V2 = 36 m/s %3D Take: L = 158 m B = 27 ° Mass of the Vehicle = 1746 kg %3D Determine the power needed to perform this movement from point 1 to point 2 with the above conditions. Neglect air and friction effects. 2 g = 9.81 m/s²
- The 7-kg sphere is projected horizontally with a velocity of 14 m/s against the 40-kg carriage which is backed up by the spring with stiffness of 1390 N/m. The carriage is initially at rest with the spring uncompressed. If the coefficient of restitution is 0.69, calculate the rebound velocity v', the rebound angle 8, and the maximum travel o of the carriage after impact. 7 kg Answers: 14 m/s k= 1390 N/m. 55⁰ 40 kgQ1) A satellite weighing ( 700 Ib ) on the surface of the Earth. Calculate the Earth's gravitational force for this satellite when it is positioned at a distance of ( 36000 km ) from the surface of the Earth, where its rotation speed around the Earth is equal to the speed of the Earth's rotation around itself. - Earth mass ( Me ) = 5.97 × 102ª kg. - Radius of the Earth ( Re ) = 6371 km. 36000 km1Q2) A ball of mass (2 kg) is thrown upward at a distance of 4 m. Calculate the work done by the force of gravity?
- Q1. Two boxes are connected by a cord running over a pulley. The coefficient of Kinetic friction between box A and the table is 0.2 50 kg a) Show the free body diagrams of box A and box B b) Find the acceleration of the system of two boxes. c) Find the tension in the cord. B. 2.0 kg Figure 01Q1) What is the total mass in (Kg) of the Earth's atmosphere if the radius of the earth is 6.37 x 10³ Km and the atmospheric pressure at the surface is 1.013 x 10² KN/m².Table Q2 show the working pressure inside an engine which moves the piston at different positions inside the engine cylinder. Determine the total work done during the piston movement, 15 inches inside the cylinder. The piston head diameter was measure to be 8 inches. Given that the total work done relation is ; -15 Work = A p (x)dx , where A is the area of the piston. Table Q2 Item Piston head Piston Pressure position from top center of the engine cylinder (у), ст (p), psi 1 110 1 130 3 140 4 2.5 170 4 185 210 7 7 215 8 8 185 9 11 135 10 12 100 11 13 90 12 14 70 13 15 40