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Suggest a reasonable number of significant digits for reporting the following common values and give some indication as to your reasoning: a. Your body weight for a passport b. A car's fuel usage (use liters per 100 km) Strain gauge Eo Excitation voltage Voltmeter Output voltage 2.121 (Resistance, R) Tensile loading Resistance, R R R Figure 1.16 Strain gauge setup used for Problem 1.46. Problems 39 c. The weight of a bar of pure (at least 99.5%) gold (consider a 1 kgf bar and a 100 oz bar) d. Distance traveled by a body in 1 second if moving at 1 m/s (use meters
Determine the speed of sound at 20 degree C in (a) air, (b) helium, (c) methane. Answer in m/s. also determine the same, using a temperature of 40 degrees Celsius
Superheated steam in a piston-cylinder device is initially at 200 °C, 600 kPa. Heat is removed from the system during an isobaric process until half of the mass condenses to saturated liquid
1kg of a gas in a piston-cylinder assembly undergoes a Carnot power cycle for which the isothermal expansion occurs at 800 K. The change in specific entropy of the gas during the isothermal compression, which occurs at 400 K is -25 kJ/kg. K.
a tube with elastic modulus of 75 gpa is used to support a compressive load. it is required that this tube must not
the wye joint in the figure splits the pipe flow into three equal parts q3 q3 and q3 having the same uniform velocity
A piston cylinder arrangement has an impeller protruding through the wall so that mechanical work can be done on the system. The piston weighs 15 lbf and is a circular disk with a diameter of 4 inches. The cylinder contains 1lbm of air initially at 5..
Calculate the resultant force at each support, and the force in each member and find all the lengths and angles in your truss.
Air flows at the rate of 1kg/s through a convergent-divergent nozzle. The entrance area is 2x10^-3 m^2 and the inlet temperature and pressure are 438 K and 580 kPa. If the exit pressure is 140 kPa and the expansion is isentropic, find;
an insulated rigid tank with a volume of 10ft3 is connected by a valve to a supply line containing steam at 500 psia
the force f of magnitude 800 n is to be resolved into two components along the lines a-a and b-b. determine by
an external moment of 500 n-m is applied to the composite plate in clockwise direction as shown. the square plate is
a apply the newton-raphson method to the function fx tanhx2-9 to evaluate its known real root at x3. use an initial
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