MidtermPracticeExam

will give UPVOTE 45-- Minutes. I already bought bartleby I hope u can help me to answer this activity of mine.GO GO GO. 1.1.13. -----------------------------------------------  Hydraulics>>Civil Engineering   ----------------------------------------------------------------------- 45-- Minutes. I already bought bartleby I hope u can help me to answer this activity of mine.GO GO GO. 1.1.13. I will give UPVOTE

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Hi can someone tell me how he gets 1.75FB=1500 from 3/4FB+FB-1500=0

2) The change in temperature that causes a brass rod to increase in length from 900 mm to 900.2mm is approximately equal to ----------, a = 18.0 x 106/°C A-25°C B--12°C C- 12°C D--25°C

Determine the support reaction.

The mechanical efficiency of a machine is defined as the ratio of the output of useful power produced  by the machine to the input  of power supplied to the machinel. True or False?

The worker in the loading zone has been complaining about fatigue and the lack of rest. You measure his heart rate and find it to be 125 beats/min and slowly increasing during work. When he sits down, the heart rates dropped to 120 beats/min by the end of the first minute of rest and 100 beats/min by the end of the third minute. Based on heart rate guidelines, does the worker work with a good working condition and have sufficient rest? Yes No ◆

Four forces, FA, FB, FC, and FD, each of magnitude 1 N, are applied to a square object at the points shown below (at the tails of the arrows), and each produces a torque around the pivot (the circle). Rank these torques, τA, τB, τC , and τD, from most negative to most positive. Use the sign convention for torques. a)τA < τD < τC < τB b)τA < τD < τB < τC c)τC < τD < τB < τA d)τB < τC < τA < τD e)τD < τB < τA < τC

a 3 zain IQ HW 3.pdf > التاريخ : Egogbl HaW: Eind the tensien force in each 35 eable. 來 M م لمملنسس لم منگ the pully te Keep the system in quilibrinm. 65N 60

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this is an mechanical engineering queation.

mechanical resistance

Q2/A/The reaction at A is * 40N 200 mm 300 mm | 20N 300mm 45° 11.56 N 18.98 N 22.24 N 10.5 N 24.75 N 32.11 N 21 N

A hydraulic press consists of two pistons, the diameter of the largest piston being 55% larger than the diameter of the other piston. Assuming that the hydraulic oil used for power transmission is incompressible and that a force F1 was applied to the piston with the smallest diameter, a force F2 will arise, as a consequence, to the piston with the largest diameter. The F2/F1 ratio is:   a.2,40 b.0,42 c.0,32 d.6,20 e.1,55

The steel I-beam in the drawing has a weight of 1.20 x 103 N and is being lifted at a constant velocity. What is the tension in each cable attached to its ends? 70.0° 70.0 I-beam Units XX> XIX XIXIX

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In a police investigation of tyre marks, it was concluded that a car while in motion along a straight level road had skidded for a total disțance of 50m. after the brakes were applied. If the coefficient of friction between the tyres and the pavement is estimated as 0.50 and g = 9.8 m/s?, the probable speed of the car, just before the brakes were applied would be f 45 km/h 3) 62.5 km/h 2 2) 79.70 km/h 4) .98 km/h

In mechanical soil

How can the correction factor be determined and utilized in mechanical engineering applications to account for deviations and improve accuracy in measurements or calculations?

a.) What is the stretched length in DB? b.) What is the tension in spring DB c.) What is the unstretched length in DB?

F- S00 N A spring of stiffness (K = 500 N/m) is placed against the 25 kg block. If the block is subjected to the force of F = 500 N. Also, the friction coefficient between the block and surface is (0.3). 500 N/m 9) When s = 0, the block is at rest and the spring is uncompressed. What is the velocity at s = 0.5 m? d) 9.18 m/s a) 4.19 m/s b) 8.26 m/s f) 3.94 m/s c) 2.82 m/s e) 3.51 m/s g) None of them

P E b LL F F = 577 N P = 858 N a = 4 m b = 2.72 m 0= 57° D C B a

A body of mass 300 kg is travelling at 48Km/hr on a level road. It is brought to rest, after travelling a distance of 6m. What is the average force of resistance acting on the vehicle? O a. 2440KN O b. 4442KN O c. 4442N O d. 44.42KN

Q-5: The vehicle has a mass of 2.2 Mg and a center of mass of G.Determine the required towing force F to move the vehicle with the rear brakes locked and the front wheels free to roll. Consider us = 0.25 %3D

Bulk modulus is defined as the ratio of compressive stress to .strain * A-elastic B-plastic O C-volumetric O

What does sliding' or slipping condition means velocities are the same in the normal direction Ofriction is maximum Friction is unknow Ovelocities match