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OVer a region where the vertical component of the Earth's magnetic field is 40uT downward, a 5 meter length of conducting wire is held along an east-west direction and moved north at 10m/s. what is the voltage of the east end wire minus the voltage of the west end wire?
Two parallel wires 10 cm apart carry currents of 18 A. What is the magnetic force between two wires for both cases
a uniform electric field exists between two conducting plates separated by 1.9 mm. a dust grain with charge 65 nc nano
The radioactive isotope TI-204 decays to Pb-204 by emitting an electron. The electron may have a kinetic energy of up to 0.763 MeV. Find the momentum of the electron
The work completed by friction on the rock when it moves from point to point at the bottom of the bowl has magnitude 0.22. Just as the rock reaches point, what is the normal force on it because of the bottom of the bowl .
A 6.9 cm diameter loop of wire is initiallyoriented perpendicular to a 1.4 T magnetic field. The loop is rotated so thatits plane is parallel to the field directionin 0.30 s.
If a hydrogen atom makes a transition from then = 6 state to the n =5 state, decide the wavelength of the photon created in the process. Assuming that the atom was initially at rest, decide the recoil speed of the hydrogen atom when it emits this pho..
In a ballistic pendulum demonstration gone bad, a 0.54g pellet, fired horizontally with kinetic energy 3.40J, how much kinetic energy did the pellet have after emerging from the Styrofoam
A mass spectrometer applies a voltage of 2 kV to accelerate a singly charged positive ion. A magnetic field of B = 0.400 T then bends the ion into a circular path of radius 0.305m. What is the mass of the ion.
Hospital patient. A 65.0 kg patient is suspended in a raised hospital bed as shown in the figure. The wire is attached to a brace on the patient's neck and pulls parallel to the bed, and the coefficients of kinetic and static friction between the ..
What is the difference in pitch among the above two scenarios if miv0 = 90 hr , the frequency of the police siren is 440 Hz and the air temperature is20°C? What is the dissimilarity in pitch in (b) if (hypothetically) v0is half the speed of sound?
A 107-mm-focal-length lens is used to focus an image on the sensor of a camera. How far in front of the sensor should the lens (assumed thin) be
A particle of mass M is subjected to a force F(t) = kte-alphat, where k is a constant and alpha = 0.5 s-1. If the particle is initially at rest, calculate the position, velocity and acceleration as a function of time.
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