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Question: What is the charge of a particle of mass 2 grams for locks in the laboratory? When calculated in an electric field directed downward 500 N/c of intensity?
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Using Faraday's Law, derive the self-inductance per unit length of a long (ideal) solenoid with n turns per unit length, and of radius R. How much energy is stored in this solenoid
During the year, the company sold a division which had revenue and expenses (not comprised in the previous figures) of $100,000 and $75,000, respectively. The division was sold at a loss of $55,000. All items are subject to an income tax rate of 4..
a thin uniform bar of mass m and length 32l is suspended by a string of length l and negligible mass. find the normal
A stone, initially at rest, is dropped from the roof of a building. After 2.00 second it is dropped, a second stone is thrown straight down with an initial speed of 25 m/s. Determine the speeds of the two stones just before they hit the ground
A merry-go-round accelerates from rest to 0.78rad/s in 34 s. Assuming the merry-go-round is a uniform disk of radius 7.0 m, calculate the net torque required to accelerate it
In a photocell, ultraviolet light provides sufficient energy to some electrons in barium metal to eject them from the surface at high speed. See Fig. 23-36. To gauge the maximum energy of the electrons, another plate above the barium surface is kept ..
Describes possible scenarios among following
A potter's wheel moves from rest to an angular speed of .20 rev/s. Find its angular acceleration in radians per second per second.
Two small nonconducting spheres have a total charge of 94.1?C. When placed 1.07 m apart, the force each exerts on the other is 10.5 N and is repulsive. What is the (larger) charge on the spheres? What is the (smaller) charge on the other sphere? What..
A model airplane of mass .75 kg is flying at constant speed in ahorizontal circle at one end of a 30m cord and at a height of 18m. What is the acceleration of the plane
The equation of a transverse wave on a string is y =(2.0 mm) sin[(22m-1)x - (675s-1)t]. The tension in the stringis 10 N. Find the linear density of this string
The threshold of dark-adapted (scotopic) vision is 6.0 x 10-11W/m2 at a central wavelength of 500 nm. how many photons per second enter the eye
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