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An ideal (Carnot) freezer in a kitchen has a constant temperature of 263 K, whereas the air in the kitchen has a constant temperature of 303 K. Suppose the insulation for the freezer is not perfect and conducts energy into the freezer at a rate of 0.150 W. Determine the average power required for the freezer's motor to maintain the constant temperature in the freezer.
A 6.00m long string sustains a three-loop standing wave pattern as shown. The wave speed is 2.00 x 10^2 m/s. What is the frequency of vibration
If the electron drops back to the ground state, will a photon be emitted? If yes, what would be the energy or wavelength of the emitted photon compared to that of the absorbed photon?
A current of 18 Ampere runs through the Parallel Wire Apparatus. What is the anticipated mass (in milligrams) for balancing the frame-balance
A storage tank contains 21.6 kg of nitrogetn (N2) at an absolute pressure of 3.65 atm, What is the volume of the tank
A certain copper wire has a resistance of 11.0?. What is the resistance of each piece
What is least amount of work required by an external force
the distance between the slits in the two-slit experiment is 1.50 x 10^ -5 m. What is the distance on the screen between the central bright fringe and the 4th order bright fringe
Two capacitors give an equivalent capacitance of 9.50 pF when connected in parallel and an equivalent capacitance of 1.80 pF, What is the capacitance of each capacitor
Two nanowires are separated by 1.6 nm as measured by STM. Inside the wires the potential energy is zero, but between the wires the potential energy is greater than the electron's energy by only 1.4 eV.
An alpha particle (m = 6.68×10?27 kg, q = 3.20×10?19 C) circularly orbits a charged sphere at a radius of 5.00 cm from the sphere's center. What is the charge on the sphere
Tarzan swings through the jungle by hanging from a vine. Immediately after he steps off the branch, is Tarzan's acceleration zero or nonzero
You are pushing a 150-kg wooden crate in a straight line a distance of 4.5 m across a wooden floor. What is the work done by friction on the crate
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