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In lacrosse, a typical throw is made by rotating the stick through an angle of approximately 90 degrees, then releasing the ball when the stick is vertical, as shown in the picture. If the stick is at rest when horizontal, the length of the stick is 1 meter, and the ball leaves the stuck with a velocity of 10m/s, what angular acceleration must the stick experience? (Hint: the 10m/s would be tangential to the rotation. This is a 2 step problem.)
A client is interested in using a voice-recognition system to access the computer. Which of the following factors is least critical to success with this method?
A small atomic bomb releases energy equivalent to the detonation of 20,000 tons of TNT; a ton of TNT releases 4x10^9 J of energy when exploded. Using 2x10^13 J/mol as the energy released by fission of 235U, approximately what mass of 235U undergoe..
If the temperature of the fluid in Problem 1.1 is to be regulated together with its level, modify the analog control system to achieve the additional control. (Hint: An additional actuator and sensor are needed.) Obtain a block diagram for the two..
Construction will take two years, and the capital will be paid in two equal increments, at the end of the first and second years. The savings (income) can be taken as paid at the end of each year. Production will start on the completion of constru..
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
The following four solvents, with accompanying distribution coefficients in mass-fraction units, are being considered. Water and each solvent (C) can be considered immiscible. For each solvent, estimate the kilograms required per hour if a single ..
Find the net present value using a discount rate of 10% and by comparing this figure to your answer to (a) estimate the internal rate of return for the project.
Develop a two-dimensional addressing system using a 6-to-64 decoder, a 64-word×128- bit matrix, and 16-input multiplexers. How many gates would such a system require?
Evaluate properties at an appropriate film temperature and show what effect this approximation has on the convection coefficient estimate.
State any assumptions you make about the method of attachment of the nozzle assembly and the igniter at the forward end.
a discuss how the phase equilibria of mixtures are represented using diagrams similar to the pressure-temperature and
determine the force and the power required to overcome the skin friction.the ship is travelling in sea water(density1020kg/m^3) and at a speed of 24km/hr
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