accelerate on a level road from stop to 90 km/h in 12 s.10. Determine the work required to deflect a linear spring with a spring constant of 70 kN/m by20 cm from its rest position.RST LAW OF THERMODYNAMICS

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Answered: 10. Determine the work required to…

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 block with a mass of 2.0 kg is held against a spring with a spring constant 250 N/m. The block compresses the spring 22 cm from the equilibrium position. After the block is released, it travels along a frictionless surface and then up a ramp, μ= 0.25 The ramp’s inclination is 30° as shown below. a) Determine the elastic potential energy stored in the spring before the mass is released. b)Calculate the speed of the block as it travels along the horizontal surface. c) Determine how far along the ramp the block will travel before it stops?
An electric motor drives a compressor by use of V-belt. The pulley diameter of the compressor shaft is 1.2 meter while the pulley diameter of the motor shaft is 1 meter. The belt speed runs at 30 m/s. The center distance between pulleys is 1.75 m. The groove angle of the pulleys is 35%. Determine the power generated in kW if the tension at the tight side of the belt is 670.5 N. The coefficient of friction between the belt and the pulley is 0.27.
196B/s.110. The coefficint of friction is 0.43 A 3.0 kilogram block is sliding down a 25° incline at a constant speed. 1 0.44 0.38 0.33 0.47 The moment reaction at B is 800N 0.16m + 203 Nm - 175 Nm + 185 Nm 17 Ma 60 deg 0.20m O if A ۱۰:۰۱ ص M
please show proper solution using formulae
3. An automobile engine delivers 25hp to the driveshaft with the thermal efficiency of 30%. The fuel has a heat content of 40 000kJ/kg. Calculate the rate of fuel consumption (kg/hr) and the heat rejected (kW) through the radiator and exhaust.
11. Ignoring friction, the equation E x ED = R x RD is true for all three classes of levers. Use this equation to find the effort indicated by the diagram of the Class III lever shown below.
Determine force in DC, HC, and HI and label if under tension or compression
A cylinder in a pneumatic circuit extenders under adiabatic conditions to lift a load. Predict the system behavior over time if the cylinder remains extended under constant load.
A refrigerator unit having mass of 35 kg is to be supported on three springs, each having a spring stiffness s. the unit operates at 480 rpm. Find the value of stiffness s if only 10% of the shaking force is allowed to be transmitted to the supported. Ex. 9.2.4:
L4-1)

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10. Determine the work required to deflect a linear spring with a spring constant of 70 kN/m by 20 cm from its rest position.