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The motor in a refrigerator has a power of 300 W. If the freezing compartment is at267 K and the outside air is at 300 K,and assuming the efficiency of a Carnot refrigerator, what is themaximum amount of energy that can be extracted as heat from thefreezing compartment in 10.0 min?
for the isomerization of n-butane to isobutene we have g -rt lnk where r 1.9872 and k isobutenen-butane the temperature
A 2500lb car collides with a 25,000 lb truck. What force is exerted on the car by the truck
question a 0.200-kg piece of aluminum that has a temperature of -163 degc is added to 1.1 kg of water that has a
Particle X has a speed of 0.960 c and a momentum of 1.70×10-18 kgm/s. What is the mass of the particle? What is the rest energy of the particle? What is the kinetic energy of the particle?
A 224-? and a 211-? resistor are connected in series across an unspecified power supply. what is the exact current (in A) through the 211-? resistor
X-rays having an energy of 300 keV undergo Compton scatteringfrom a target. The scattered rays are detected at 37 degreerelative to the incident rays. determine the energy of the scattered x-ray
The International Space Station orbits at an average height of 350 km above sea level. Determine the acceleration due to gravity at that height, and find the orbital velocity and period of the space station? The Hubble Space Telescope orbits at 60..
A particle has a charge of +2.3 ?C and moves from point A to point B, a distance of 0.13 m. The particle experiences a constant electric force, and its motion is along the line of action of the force.
A rectangular block of copper has sides of length 12 cm, 22 cm, and45 cm. what are the currents thatthe block can carry
A scuba diver is 48 m below the surface of a lake, where the temperature is 5°C. He releases an air bubble with a volume of 17cm3. The bubble rises to the surface.
In a double-star system, two stars of mass 6.0 *10^30 kg eachrotate about the system's center of mass at a radius of 2.0 * 10^11m. What is their common angular speed?
Two sounds have intensities of 2.10×10-8 and 8.70×10-4 W/m2 respectively. What is the magnitude of the sound level difference between them in dB units
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