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A total of 8.21·106 electrons are placed on an initially uncharged wire of length 2.27 m.
a) What is the magnitude of the electric field a perpendicular distance of 0.974 m away from the midpoint of the wire?
b) What is the magnitude of the acceleration of a proton placed at that point in space?
A bat moving at 3.4 m/s is chasing a flying insect. The bat emits a 49 kHz chirp and receives back an echo at 49.44 kHz. At what speed is the bat gaining on its prey
A thin rod (length = 1.816 m) is oriented vertically, with its bottom end attached to the floor by means of a frictionless hinge. compute the magnitude of the angular acceleration of the rod
A high-energy pulsed laser emits a 1.2-ns-longpulse of average power 1.7×1011W. Determine the rms value of the electric field
Calculate the longest wavelengths for light in the Balmer, Lyman, and Brackett series for hydrogen
A C=35 pF parallel plate cApacitor has plates of area A=402cm^2. What is the electric field between its plates when it is connected across a potential difference of V=14.5 Volts
an improved version of a model of radioactive is to toss a large number of dice instead of coins: each has die that comes up a "one" represent a nucleus that has decayed. what is the half-life in numbers of tosses
A resistance R and a 3-H inductance are in series across a 60-Hz ac voltage. What is the ac input voltage
For a wavelength at the peak of visual sensitivity, 550 nm, how many photons lead to an observable flash
A generator has a square coil consisting of 356 turns. The coil rotates at 91.5 rad/s in a 0.211-T magnetic field. What is the length of one side of the coil
Two prisms with the same angle but different indices of refraction are put together to form a parallel sided block of glass, What angle will the emerging beam make with the incident beam
A proton takes 99.0 usto complete one orbit around a 14.5 m diameter cyclotron. What's the cyclotron's magnetic field
A thin, uniform rod is hinged at its midpoint. To begin with, one half of the rod is bent upward and is perpendicular to the other half. What is the angular velocity of the straight rod
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