Question 11.1 A 50 kg cement block needs to be moved, over a distance of 10m, the power avallable lIs 200 W, whlethe block accelerates at 5 m/s when this power is appled.1.1.1 Detemine the work It would take to move the block over the desired distance.1.1.2 Detemine the time It would take to move the block over the desired distance.12 Detemine the force applled to rotate an object around an axis with a torque of 10ONM. The anglebetween the moment am and the appled force is 56.44" and the moment arm has a length of 0.8 m.13 Aluminlum with an unknown mass and an Initial temperature of 18 "C Is to be melted In an arc furnaceIn 1 hour and 30 minutes. The aluminlum has a meiting point of 938 K, a specific latent heat of fuslonof 458 kJikg and specific heat capacity of 1016.22 Jkg."C. The energy required for the melting processIs 156 MJ, the emiclency of the fumace is 81% and the cost of electrical energy is 92c/KWh.13.1 Calculate the mass of the aluminlum. 1.3.2 Calculate the active power required by the fumace.132 Calculate the operating cost of the furnace for the melting process.1.4 Detemine the total cost of using the following equipment at R2.85/KWh.A 250 W LED televesion for 8 hours;A 1200 W microwave oven for 30 minutes;Four 11 W CFL Iight bulbs for one hour,A 3 KW geyser for 2.5 hours.

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Question 1 11A 50 kg cement Dlock needs to be moved, over a distance ofr 10m, the power avalabie is 200 W, while the block accelerates at 5 mis? when this power is applied. 1.1.1 Detemine the work it woud take to move the block over the desired distance. 1.12 Detemine the time it would take to move the block over the desired distance. 12 Determine the foroe appled to rotate an object around an axis with a torque of 100NM. The angle between the moment am and the appled force is 56.44" and the moment arm has a length of 0.8 m.

Question 1 11A 50 kg cement Dlock needs to be moved, over a distance ofr 10m, the power avalabie is 200 W, while the block accelerates at 5 mis? when this power is applied. 1.1.1 Detemine the work it woud take to move the block over the desired distance. 1.12 Detemine the time it would take to move the block over the desired distance. 12 Determine the foroe appled to rotate an object around an axis with a torque of 100NM. The angle between the moment am and the appled force is 56.44" and the moment arm has a length of 0.8 m.

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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