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A Carnot refrigerator is used in a kitchen in which thetemperature is kept at 304 K. This refrigerator uses 214 J of workto remove 2380 J of heat from the food inside. What is the temperature inside the refrigerator?
Diffraction grating produces its third-order bright band at an angle of 79.4 degrees for light of wavelength 731nm. Find the angular location of the first-order bright band
The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground
A jet transport has a weight of 2.43 x 106 N and is at rest on the runway. The two rear wheels are 16.0 m behind the front wheel, and the plane's center of gravity is 12.4 m behind the front wheel. Determine the normal force exerted by the ground on ..
A series ac circuit consists of a voltage source of frequency f=60 Hz and source voltage amplitude 345 volts, a resistor of resistance R=335 ohms, what is the current amplitude in the circuit
Some GRIN material is made in the form of a doughnut. The inside diameter (the diameter of the hole in the doughnut) is 34 cm, What should be the highest, and the lowest refractive index of the material
The space shuttle typically orbits 400 km above the earth's surface. The earth has a mass of 5.98 × 1024 kg, Use your knowledge of gravitation to determine the orbital speed of the shuttle's cargo
How to compute Average power output
Why is it that a grow-lamp tube has an apparent color temperature of 5500 K and is cool to the touch. However, the much dimmer tungsten lamp burns on touch? What would the blackbody spectrum of the tube look like?
a person's reaction time is generally not quick enough to allow the person to catch a dollar bill dropped between the fingers. If a typical reaction time in this case is 0.25 s
Calculate change in kinetic energy
A 0.21-kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the stick's tension is 18 N. Find the tension in the stick when the ball is at the twelve o'clock position
A hockey puck is hit on a frozen lake and starts moving with a speed of 13.2 m/s. Five seconds later, its speed is 6.10 m/s. How far does the puck travel during the 5.00 s interval
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