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Can we boil water by dropping it off a cliff? For 1 kg of liquid water at room temperature (25 oC) determine the change in internal energy associated with an increase of the temperature 1o C to 26 oC. What would be the necessary change in elevation of 1 kg of liquid water at room temperature (25 oC) needed to increase the energy of the system this same amount by changing the potential energy? If the energy of the system were to be changed this same amount by changing the kinetic energy, to what speed must the system be accelerated if it is initially at rest? Using these results, comment on the likely reasonableness of neglecting changes in KE and PE for thermodynamic problems involving liquid water and changes in temperature.
suppose that 1000 is deposited into an account that pays 5 intrest per year. at the end of each year th amount in the
a stack was sampled for 8 minutes. the gas velocity at stack conditions through the sampler was 15.0 ms and the area
The heat transfer coefficient in the oven is 25W/m^2K. Calculate rate of heat transfer per m^2 area.
water gate is hinged at point o. angle between the gate and the ground is given alpha 60 degrees. the gate opens when
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Air at 200 kPa enters a 2-m-Iong, thin-walled tube of 25-mm diameter at 150°C and 6 m/s Steam at 20 bars condenses on the outer surface.
the eagle zr tire shown in the figure 1 is used on a corvette j with a test weight of 3500 lb. and having a 5248 weight
a home buyer can afford to spend no more than 1500month on mortgage payments. suppose that the interest rate is 6 that
find the transfer function for the following impulse responsefind the transfer function for the following impulse
an aluminum ball does not fit through a brass ring at 20oc. the diameter of the ball is 2.001 cm and the inner diameter
an air compressor takes air from outdoors at 28deg c and 101.2kpa and compresses it to 790kpa and 50 deg c. the air
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