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Consider a pendulum bob of mass 0.01 g suspended by a massless string of length L = 12 cm. The bob in this case (for small oscillations) will behave as if it were a simple harmonic oscillator with w = root g/L. According to equation Q7.16, the lowest possible energy E0 of such a harmonic oscillator is still nonzero. What is the pendulum's classical amplitude of oscillation when it has the lowest possible quantum energy? Do you think that it would be easy to detect these oscillations?
The total current delivered to a number of devices connected in parallel is the total of the individual currents in each device. Circuit breakers and resettable automatic switches that protect against a dangerously large total current by "opening" to..
An ideal radiator radiates with a total intensity of I =5.81 kW/m2. Find at what wavelength does the spectral emittance I(λ) peak
A 5 g bullet with speed of 400m/s gets stuck in a 1 kg wooden block (originally not moving). Classify the collision. (b) Find the new speed of block+bullet. (c) Find the amount of kinetic energy lost. Where does it go?
a cylinder contains 3.2l of oxygen at 340k and 2.6 atm . the gas is heated causing a piston in the cylinder to move
Ice (initially at 0oC) is added to 0.75L of tea at 10oC to make the coldest possible iced tea. how much liquid is in the pitcher when this condition occurs
A ray of light is incident on the mid-point of a glass prism surface at an angle of 25.0º with the normal. What is the angle of refraction as the ray enters the air on the far side of the prism
Two C1 = 3.7 μF, C2 = 18.7 μF are charged individually to V1 = 14.2 V, V2 = 7.0 V. Calculate the final potential difference across the plates of the capacitors once they are connected
Consider an infinite solenoid of radius R, n turns per unit length, and current I. Calculate the final cinetic moment of each of the cylinders
A pot of water is boiling under one atmosphere of pressure. Assume that heat enters the pot only through its bottom, What is the temperature of the heating element in contact with the pot
an 14 m by 8.5 m house is built on a concrete slab 27 cm thick. what is the heat-loss rate through the floor if the
A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west,perpendicular to each other, at 20m/s, The third piece hastwice the mass as the other two. What is the speed and the direction of the thir..
For a damped simple harmonic oscillator, the block has a mass of 2.2 kg and the spring constant is 13 N/m. The damping force is given by -b(dx/dt), How many oscillations are made by the block in this time
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