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An initially empty bottle is filled with water from a line at 0.8 MPa, 350 deg C. Assuming no heat transfer and that the bottle stops the filling process when its pressure reaches the line pressure, determine the final temperature and volume of water in the bottle if the final water mass is 0.75 kg.
Describe how a light water commercial nuclear reactor works. Include a diagram and talk about the role of each of the following factors; fuel, moderator, control rods, coolant, reactor vessel, shielding.
A capacitor is made from two 1.0 cm diameter coins separated by a 0.14 mm thick piece of paper (K = 3.7). How much charge is on each coin
A balloon contains 0.63 mol of helium. It rises, in maintaining a constant 280 K temperature, to an altitude where its volume has expanded three times. How much work is done by the gas during this isothermal expansion?
A machine shop has 100 equally noisy machines that together produce an intensity level of 90db. If the intensity level must be reduced to 80db, how many machines must be turned off
A converging lens with a focal length of 20 cm and a diverging lens with a focal length of -70 cm are 110 cm apart. Calculate the distance between image and diverging lens
A 4 kg blue ball moves to the right at 6 m/s. A 3 kg red ball moves to the left at 7 m/s. How fast and in what direction is the red ball moving
A sledge loaded with bricks has a total mass of 17.4 kg and is pulled at constant speed by a rope inclined at 21.0° above the horizontal. What is the tension in the rope
The intensity level of 33.56 harmonicas in a harmonica band is 87.84 dB. Compute the intensity level generated by one harmonica
A student drops a water ballon out a dorm window 12 m abovethe ground. What is its speed when it hits the ground
A large boat with a weight of 70000 tons moves at constant speed due west. What is the net force on the boat
Two bumper cars are driving directly toward one another. The first car, mass m1 = 150 kg, What is the total momentum of the system
An underwater scuba diver sees the Sun at an apparent angle of 26? from the vertical. What is the Sun's angle of inclination
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