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A 160-lb person is holding a 10-lb weight in his palm with the elbow fixed at 908 flexion (Fig. 4.8, top).
(a) What force must the biceps generate to hold the forearm in static equilibrium?
(b) What force(s) does the forearm exert on the humerus? width=
Figure 4.8 (top) The forearm held statically fixed in 908 flexion while holding a 10-lb weight at the hand. (bottom) Free-body diagram of the forearm system
Charge is uniformly distributed around a ring of radius R= 2.40cm and the resulting electric field magnitude E is measured along the ring's central axis (perpendicular to the plane of the ring).
It will dissolve, however, in aqua regia, a mixture of the two concentrated acids. The products of the reaction are the AuCl46- ion and gaseous NO. Write a balanced equation for the dissolution of gold in aqua regia.
This is a fluid dynamics experiment involving the filling and emptying of tanks. The objectives of the experiment include: Determination of the discharge coefficient of the orifice and the equivalent length of a pipe mounted at the outlet of the two..
Draw and completely label a flowsheet of the process (use 100 kg/min of ore as a basis). Calculate the rate of Fe2O3 production (kg/min) in the outlet stream, and the total molar flow and composition of the outlet gas stream.
Aim To understand the fundamentals of chemical bonding and ionic equilibrium and its application in engineering problems.
A hot water heater measures 20" in diameter. What is the area of a metal base for the water heater, assuming a four-inch overhang for the base beyond the edge of the heater? (Round to the nearest tenth.)
When burnt , the flue gas issuing out of the furnace at 545 oc analyses on dry basis as CO2 =14.5 % , O2 = 4.7%, N2 = 80.8 % , Other relevant data are- Gross C.V. of coal =28000 kj /kg , ambient temperature = 15oc
Find the charge per unit length on the inner surface and on the outer surface of the outer cylinder.
Rank the following 3 metals in order of increasing Young's Modulus: W, Cr, Mo. Do not look up the values of Young's Modulus, instead base your answer on what you know about the structure and chemistry of these elements.
A strap, instrumented to measure stretch, is worn around the chest to detect respiration whilst a subject is at-rest. The resulting signal is contaminated by electrical noise from the mains at 50 Hz with a similar amplitude to the respiration sign..
For removal of a heavy metal from a waste stream by electrodeposition, the electrolyte porosity is anticipated to decrease with time as determined by Faraday's law. For a Pb2+ present at 10mg/liter, given a flow rate of 100 liters/hour, how large mus..
Design a Heat Exchanger for the Following Duty: Reduced crude oil leaving a distillation unit with a flow rate of 3166.04 kL/d at 268 oC and is to be cooled to 243 oC by exchange with 62.8 kg/s pre-flashed crude oil coming from pre-flash unit at 206 ..
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