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A 10% Atmospheric Dump Valve (ADV) at a PWR relieves steam at 1100 psia when the enthalpy required to make a pound of steam is 632 Btu/lbm. What is the flow rate through the valve if the core power is 3300 MWth? Hint: The energy removed by the ADV is primarily the energy required to boil the steam. There is a little more energy required to warm up the feedwater to saturated temperature, but that is only a fraction of the energy to boil the water. Hence the energy release will be 632 Btu/lbm multiplied by the flow rate. Be careful about your units. If the flow is in lbm/s, the power will be in Btu/s.
the escape velocity of a bullet from the surface of planet y is 1631 ms. calculate the escape velocity from the surface
A speedboat starts from rest and accelerates at +2.32 m/s2 for 6.78 s. At the end of this time, the boat continues for the additional 5.34 s with an acceleration of +0.677 m/s2. Following this, the boat accelerates at -0.686 m/s2 for 8.68 s.
A 1.00 kg chunk of ice at a temperature of 0 C and pressure of 1.0 atm melts completely to water of 0 C. What is the change of the entropy of the ice
a component with a 15 ohm resistor is rated for use at power levels not exceeding 1603 mw. how much current can safely
A cannon tilted up at a 30° angle fires a cannon ball at 80 m/s from atop a 18 m high fortress wall. What is the ball's impact speed on the ground below
q1. a school yard teeter totter with a total length of 6.0 m and a mass of 36 kg is pivoted at its center. a 19 kg
During a violent storm, a car is struck by a failing high-voltage wire that puts an excess charge of -850 mircoC on the metal car. how much is on the outer surface of the car
A satellite of mass 410 kg is launched from a site on the Equator into a circular orbit at 5000 km above Earth's surface. DATA: Rearth=6.38×106 m. a.) What is the acceleration of gravity at this altitude? b.) What is the speed of the satellite? c.) W..
The tungsten filament of a certain 100 W light bulb radiates 2.50 W of light. (The other 97.5 W is carried away by convection and conduction.) The filament has surface area of 0.270 mm2 and an emissivity of 0.950. Find the filament's temperature. (Th..
A spring whose spring constant is 750 N/m is compressed by 15 cm from. 10 kg ball. How high will the ball go in the air
What is the longest wavelength of light that may be absorbed by a hydrogen atom that starts in the second excited state
a point charge q1 of 2.00x10-6c is placed on the x-axis at -4.0 cm 0 cm. an identical charge q2 is placed at 4.o cm 0
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