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A position vector is defined as having a length equal to your height in inches (or centimeters). The tangent of its angle is defined as your weight in pounds (or kilograms) divided by your age in years. Calculate the data for this vector and:
a. Draw the position vector to scale on cartesian axes.
b. Write an expression for the position vector using unit vector notation.
c. Write an expression for the position vector using complex number notation, in both polar and cartesian fonns
a carnot heat engine receives 1200 kj of heat per cycle from a high-temperature source at 925degc and rejects heat to a
a cylindrical fuel rod has a linear power rating of 467 wcm. the radius of the fuel is 1.3 cm. the gap thickness is
The open-ended polyvinyl chloride pipe has an inner diameter of 4 in. and thickness of 0.2 in. It carries flowing water at 57psi pressure. If the flow of water within the pipe is stopped due to the closing of a valve, determine the state of stress in..
liquid octane c8h18 at 25ordmc 1.0 atm enters a well-insulated reactor and reacts with air entering at the same
at 25 degree centegrade an aqueous solution containing 35.0 wt h2so4 has a specific gravity of 1.2563. a quantity of
An office worker claims that a cup of cold coffee on his table warmed up to 80°C by picking up energy from the surrounding air, which is at 25°C. Is there any truth to his claim? Does this process violate any thermodynamic laws?
A piston-cylinder assembly contains CO2. The CO2 expands with PV1.5=constant where the initial state is 200 degrees F and 40 lbf/in^2, to a final state where the volume doubles. Determine the final temperature, pressure, work and heat transferred
If the filling is done rapidly, calculate the final temperature in the small cylinder, (a) assume that oxygen is an ideal gas with Cv= 5R/2 and (b) using accurate thermodynamic data for oxygen.
Calculate the specific heat capacities of the gas at constant volume and constant pressure, the initial pressure of the gas and the change in volume of the gas when it was heated at constant pressure.
A dilute suspension contains ten spheres per liter. A sample (one tenth of that solution) is removed.
The uncertainty in the radiant energy flux measurement is ±225 W/m2 for both measurements, and the second measurement is 2.23 times as large as the first measurement. Calculate the temperature of the second material and the uncertainty.
The 3-in.-diameter rod carries the 4000-lb · ft bending moment and a torque T. The yield stress of the material is 60 ksi. Determine the largest allowable value of T using the maximum distortion energy theory and a factor of safety of 2.
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