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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?
If there are 30 students in class, each dissipating sensible heat at a rate of 100 W, determine if it is necessary to turn the heater in the classroom on to prevent the room temperature from dropping.
Our project is to design a functional jacket that will charge a mobile device on the go. Most people have had their cellphone lose charge at a time when it is inconvenient or impossible to recharge it. Our project aims to eliminate that problem by..
task 1part onea research strategy is a plan of action that gives direction to your efforts enabling you to conduct your
determine the value of the suspended tension load at the top of drill pipe and using the graph of pore/fracture pressure for the Holly Field propose a casing scheme for the well using the graphical approach. Discuss the suitability of the selected..
Determine the total cost per unit of production for each of the above production quantities and for the alternatives which satisfy the budget limit criterion, perform a Present Value of incremental investment analysis to determine the ..
Select a recent system failure, preferably a marine one, that has attracted your interest. Collect information relating to the failure from different sources such as reports, statements, newspapers, magazines or journals. Include these sources wit..
Formulate a decision analysis problem by constructing the payoff table - how many packs of cookies you should buy in the morning? Show how you reach to your solution.
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
If a comparison was done against the ten year mean UCA COB sophomore ACT score of 22, what hypothesis would you be testing?
To research Literature review on the current Multiphase flow meters sensors in the oil and gas industry - design a multiphase flow meter component using CATIA V8, subjecting it to the loading modes in the marine environments.
Draw the feasible region of the LP and determine whether it has infeasibility, unique optimum, alternative optima, or unboundedness
Determine the dimensions, in both the FLT system and MLT system, for (a) The product of force times volume,
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