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In the figure, an electron accelerated from rest during potential difference 1.7kV enters the gap between two parallel plates having separation 20.0 mm and potential dissimilarity 140V. The lower plate is at the lower potential. Neglect fringing and suppose that the electron’s velocity vector is perpendicular to the electric field vector among the plates. What uniform magnetic field allows the electron to travel in a straight line in the gap?
Bored, a boy shoots his pellet gun at a piece of cheese that sits, keeping cool for dinner guests, on a massive block of ice. find the coefficient of friction between the cheese and ice
A bar magnet is oriented with its magnetic dipole moment at 39.5° to the direction of a 0.0689-T magnetic field, causing a torque of 0.00351 N·m to act on it
A frictionless, vertical wire has two metal beads on it. The beads are held 30 cm apart by horizontal magnets, If the two beads each have a mass of 49.7 g, what is the kinetic energy of the second immediately after impact
When the front of the train passes the worker. A 1500 kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 18.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision.
A satellite moves around the Earth in a circular orbit of radiusr. (Use G for the universal gravitation constant,M for the mass of the Earth, and r, asappropriate, when answering parts (a), (b), and (c) below.)
Find the minimum frequency a photon must have if it is to ionize the n = 1 state of a doubly ionized lithium atom
A biology student rides her bike around a corner of radius 25 meter at a steady speed of 8.2 m/sec. If she is not skidding, what is the magnitude of the force of friction on her bike from the road
water has a specific heat capacity of 4186 jkg degc. a tank contains 500 kg of water at 10.0degc. the water is heated
A parallel-plate capacitor of capacitance C is connected to a battery of voltage V until it is fully charged. The energy density in the capacitor is then equal to u. If the same capacitor is then connected to a battery of voltage 2V its energy densit..
The range of wavelengths allotted to the radio broadcast band is from about 150 m to 630 m. If each station needs exclusive utilize of a frequency band 10 kHz wide, how many stations can operate in the broadcast band?
A wire 28.0 cm long lies along the z-axis and carries a current of 8.50 A in the +z-direction. find the magnitude of the net magnetic force on the wire
You are designing the section of a roller coaster ride shown in the figure. Previous sections of the ride give the train a speed of 14.3 m/s at the top of the incline, which is 36.7 m above the ground. obtain the minimum radius you can use for the ..
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