You knew there had to be one of these. In the situation show…
You knew there had to be one of these. In the situation shown below, the initial velocity is zero. a) Will the blocks move? If so, b) Calculate their velocity exactly 535 milliseconds after they are released from rest. c) Find the tension in the cable between the blocks exactly 375 ms after they are released. You may assume that all values in the diagram are good to 3 significant figures.
Read DetailsA conveyor belt moves crushed coal to the top of a 137-foot-…
A conveyor belt moves crushed coal to the top of a 137-foot-high oven. The conveyor belt is angled at 17.3 degrees above the horizontal. The machine lifts 13,700 pounds per minute of coal to the top of the oven. It moves very slowly, so the kinetic energy added to the coal is negligible. The system is driven by a large electric motor and operates 16 hours per day, 6 days per week. If the entire system is 71.3% efficient in converting electrical energy to gravitational potential energy in the coal, and if electricity costs 13.7 cents per KWHR, calculate the average monthly electric cost to run this device.
Read DetailsA 17.7 kg block is given an initial velocity of 7.77 m/s up…
A 17.7 kg block is given an initial velocity of 7.77 m/s up a slope inclined at 11.7°. If the coefficient of kinetic friction between the block and the inclined plane is 0.213 and the coefficient of static friction is 0.349, calculate how far up the slope the block slides before it stops.
Read DetailsTwo nurses have worked together for a few months. One nurse…
Two nurses have worked together for a few months. One nurse will assist others when her work is complete and the other will not assist unless asked by the charge nurse. This has created a conflict in the past between the two. Which of the following is an effective strategy to resolve these issues peacefully?
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