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A mass of 1.2 lbs of steam at an initial pressure of 500 psi, an initial specific volume of 1.701 ft 3/lb and an initial internal energy of 1363.3Btu/lb, undergoes a polytrophic process defined as, pv n = constant, with n=2 to a final internal energy of 990.58 Btu/lb in a piston cylinder mechanism. Through the process 342.9 Btu are transferred from the steam. Decide the final specific volume and work done.
a glass sheet is covered by a very thin opaque coating. in the middle of this sheet there is a thin scratch 1.2510-3mm
Two capacitors are connected to a battery. The battery voltageis V = 80 V, and the capacitancesare C1 = 2.00 μFand C2 = 4.00 μF. Determine the total energy stored by the two capacitors when they are wired (a) in paralleland (b) in series.
An electron moving at right angles to a 0.42 T magnetic field experiences an acceleration of 7.5 x 1015 m/s2. Find by how much does its speed change in 1 ns
A spaceship travels at constant velocity from Earth to a point 780 ly away as measured in Earth's rest frame, How old is the passenger when the ship reaches its destination, as measured by the ship's clock
You are trying to hit a cart of mass 0.3 kg on a frictionless table with a toy projectile launcher. At what angle relative to North do you want to fire the projectile
A bicycle wheel is rotating at 40rpm when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration of 0.45rad/s2, What is the wheel's angular velocity, in rpm, 10s later
A monochromatic beam of light is absorbed by a collection of ground-state hydrogen atoms in such a way that three different wavelengths are observed, What is the wavelength of the incident beam
A typical red blood cell subtends an angle of only 2.0×10?5rad when viewed at a person's near-point distance of 25cm, find the magnitude of the angle subtended by the red blood cell
It costs 2.5 cents to charge a car battery at a voltage of 12 V and a current of 13 A for 120 minutes. What is the cost of electrical energy per kilowatt-hour
charge q1=1.4x10-8C is placed at the origin. Charges q2=-1.8x10-8C and q3=2.1x10-8C are placed at points (0.18m , 0m) and (0m , 0.24m)
On a cold winter day, the outside temperature is -20°C and the inside temperature is maintained at 20°C. What is the rate of increase of the entropy of the universe
A heavy piece of hanging sculpture is suspended by a 90 cm-long, 5.0g steel wire. What is the mass of the sculpture
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