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A man holds a pail of water by the handle and whirls it around avertical circle of radius 0.84 m at constant speed. What is theminimum speed that the pail must have at the top of its circularmotion if the water is not to spill out of the upside-downpail?
A Ferris wheel with radius 38m is driven by a motor that exerts a force on the wheel 1m from the center. find the normal force at the bottom of the wheel's trajectory
Suppose I have two infinite wires, one on the y axis and one on the x axis, each charged uniformly with lamda C/m. Find an expression for the electric field E at any point in the x and y plane as a function of x and y.
Calculate the power spectrum of square pulse with amplitude, A and length, τ0 . plot the power spectrum, showing several zero-crossings. Showing the bandwidth in frequency is inversely proportional to τ0.
Integrated circuits are manufactured in vacuum chambers in which the air pressure is 7.00x10^-11 mm of Hg. What is the mean free path of a molecule
When responding to sound, the human eardrum vibrates about its equilibrium position. Suppose an eardrum is vibrating with an amplitude of 6.75 10-7 m, What is the maximum acceleration of the eardrum
In his 1865 science fiction novel From the Earth to the Moon, Jules Verne described how three astronauts are shot to the Moon by means of a huge gun. According to Verne, the aluminum capsule containing the astronauts is accelerated by ignition of ..
An interstate highway has been built through a neighborhood in a city. In the afternoon, the sound level in an apartment in the neighborhood is 95.0 dB as 105 cars pass outside the window every minute. Late at night, the traffic flow is only six c..
A nucleus of the boron-11 isotope consists of five protons and six neutrons. evaluate the magnitude and direction of the electric field
A 8.6cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.64T pointing up. What is the average induced emf in the coil
A cylindrical air tank has dimensions diameter = 0.2m and height 0.8m, Calculate the mass of air in the tank (kg) (have to use ideal gas law, molecular weight of air)
A hot, 35-gram aluminum rivet is dunked into a tank containing 2.2 L of water to cool it. Calculate the original temperature of the rivet
You ionize a hydrogen atom with a photon with wavelength 77.5nm. What orbital was the electron in before ejection
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