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Two substances, A and B, have identical enthalpies of vaporization. They boil at 164 degree celsius and 236 degree celsius, respectively. If the entropy of vaporization of A is 87.2 J/K, what is the entropy of vaporization of B, in J/K?
question1a 1.10 m long straight wire section has a resistance r 46.0 ohm and is linked with conducting wire of
Two Stars of equal mass revolve in a circular orbit about a center of mass midway between them. Find the mass of each star
A hydraulic lift is lifting a car that weighs 13 kN. The area of the piston supporting the car is A, How far must the small piston be pushed down to raise the car a distance of 1.3 cm
A rocket is launched vertically from rest; and it burns fuel at a constant rate of 136 kg/s. Exhaust gases are expelled with a speed of 5.25 x 10^3 m/s relative to the rocket. what is the magnitude of the thrust?
The work function for cesium, 1.81 eV, is much lower than the work function for other metals. What is the photoelectric cut-off wavelength? What is the maximum electron kinetic energy when cesium is illuminated with light of 512-nm wavelength?
A can of soup has a mass 420 g, height 13 cm, and diameter 5.6 cm. Calculate the moment of inertia of the can if it takes 1.5 s to reach the bottom of the incline
A spherical source radiates sound uniformly in all directions. At a distance of 13 m, the sound intensity level is 80 dB. What power is radiated by this source
An object is placed in front of a 75 mm lens. The image is real, and has a magnification of magnitude |m|=3. How far away is the object from the lens
A cubic container is at rest on a rough horizontal warehouse floor. determine the minimum horizontal force that must be applied to the top of the container to cause tipping
A resistor of unknown resistance and a 42.0-? resistor are connected across a 123.0-V emf device in such a way that an 10.0-A current flows
Two waves with identical frequency but different amplitudes A1 = 6.0 cm and A2 = 3.0 cm, What is its amplitude if they interfere destructively
High Speed stroboscopic photographs show that the head of a200 g golf club is traveling at 55 m/s just before it strikes a46g golf ball at rest on a tee. Find the speed of the golf ball just after impact
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