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Consider a vertical elevator whose cabin has a total mass of 800 kg when fully loaded and 150 kg when empty. The weight of the elevator cabin is partially balanced by a 400-kg counterweight that is connected to the top of the cabin by cables that pass through a pulley located on top of the elevator well. Neglecting the weight of the cables and assuming the guide rails and the pulleys to be frictionless, determine
(a) The power required while the fully loaded cabin is rising at a constant speed of 1.2 m/s and
(b) The power required while the empty cabin is descending at a constant speed of 1.2 m/s. What would your answer be to (a) if no counterweight were used? What would your answer be to (b) if a friction force of 800 N has developed between the cabin and the guide rails?
Determine how to load each truck by deciding on how many units of the product will be delivered to each by each truck. While doing so, you need to make sure that each store is delivered with exactly the number of units of the product they require.
1. A thin stick one metre long is suspended at one end from the ceiling by a string. As it swings, the angle of the stick to the vertical is consistently twice that of the string. What is the length of the string? (Show all working.)
Consider a two-part process with an expansion from 0.1 to 0.2 m3 at a constant pressure of 150 kPa followed by an expansion from 0.2 to 0.4 m3 with a linearly rising pressure from 150 kPa ending at 300 kPa. Show the process in a P-V diagram and fi..
The fly a kit slides are attached. Make sure the write-up is in your own words (do not just cut and paste). Focus on the importance of SAP for industrial engineers assignme.
Provides safe Web access to students and staff. It also ensures no student or staff member is exposed to illicit web content.
Alternatively, the company can outsource ad development at a fee of $20 per ad regardless of the quantity. The current interest rate is 8% per year. What is the breakeven amount, and which alternative is economically better?
Find the economic life, with interest rate 12%, of an asset. Initial cost is $5,500. Operation cost is $1,200 per year. Salvage value decreases 15% of new value per year.
For the purpose of construction of residential foundations, describe the soil classification (i.e., A, S, M, H, E, P) according to AS2870.
Preparation is the key to giving an effective presentation and to controlling your nervousness. Know your topic well. You will be the expert on the topic in the classroom
Identify relevant major processes in an apparel factory. (you need a web survey). List and prioritize the processes suitable for conversion to a CIM environment.
Write a report on environmental companies
Most jobs involve interaction with technology in some form. Police officers have computers in their squad cars, nurses enter your blood pressure and pulse into electronic files.
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