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Given 3-degrees of freedom manipulator with prismatic joints, as well as the following questions:
a) Assign the X and Z axes and determine the Denavit-Hartenberg parameters of this robot.
b) Determine the A matrices of this robot.
c) What is the position of the end effector with respect to the base of the robot in the specified configuration?
What are the forces on the pinion,gear,and shafts?
You are boiling a kettle of water over a propane stove that is supplying a uniforma amount of heat. You note that it takes 3 minutes to heat water which is initially at 20C to its boiling point. Just as the water begins to boil, you receive a phone c..
A 4 cylinder 1.6 liter SI engine has a compression ratio of 10, connecting rod length of 16.8cm, and a crank offset of 4.5 cm. The engine is operating at 3000 RPM and wide open throttle. The exhaust pressure is 100 kPa. The intake valve closes at 20 ..
zoologists estimate that the average adult cheetah can run at a speed of 100 kmhr and that the average antelope can run
a 0.1 kg bullet fired from a rifle enters a very large body of water and comes to rest. as a result of aerodynamic drag
A vertical plate of length L = 2m (in the vertical direction), width w = 1m (in the horizontal direction) and temperature T = 300K is in free convection with air at T\infty = 320K. Find the total heat transfer from both sides of the plate
Calculate the fraction of atom sites that are vacant for copper (Cu) at a temperature of 729°C (1002 K). Assume energy for vacancy formation of 0.90 eV/atom. Repeat this calculation at room temperature (298 K).
A 3 liter vessel contains 2kg of water, 0.05kmol of steam, and 15cm^3 of ice (of density 990 kg/m^3). If the vessel is heated until its entire contents have vaporied, what is the density of the vapor?
A “friend” asks you to construct the phase diagram for a new binary alloy of A and B. The clues are: (i) A and B are completely immiscible in each other and no solid solutions exist in the diagram, (ii) no stoichiometric compounds exist in the diagra..
consider the cuau crystal structure. it can be described as a simple cubic lattice with a basis of cu 0 0 0 cu 1 2 1 2
Niobium has the BCC structure with a density of 8.57 g/cm^3 , an atomic weight of 92.91 g/mol. One atom is associated with each lattice point. Calculate the lattice parameter; and the atomic radius of Niobium.
hot air at 207 kpa and 200degc enters a 2.5-cm-id tube at 6 ms. the tube is constructed of copper with a thickness of
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