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A long, straight wire lies on a horizontal table and carries a current of 1.21 µA. In a vacuum, a proton moves parallel to the wire (opposite the current) with a constant velocity of 34500 m/s at a constant distance d above the wire. Find the value of d. The acceleration of gravity is 9.8 m/s 2 and the permeability of free space is 1.25664 × 10-6 T · m/A. Ignore the magnetic field due to the Earth. Answer in units of cm.
a bridge is constructed of a material that is known to expand 0.1 cm for eeach meter in length when subjected to a
A block of mass m1 = 1.75 kg and a block of mass m2 = 5.90 kg are connected by a massless string over a pulley in the shape of a solid disk having radius R = 0.250 m and mass M = 10.0 kg. These blocks are allowed to move on a fixed block-wedge of ..
A net force of 36N accelerates a 5.1-kg mass over a distance of 12 m. What is the increase in kinetic energy of the mass
a capacitor is connected across an ac generator whose frequency is 810 hz and whose peak output voltage is 170 v. the
A logging boat is towing a log that is 2 m in diameter and 8 m long at 4 m/s through water. Estimate the power required if the axis of the log is parallel to the tow direction.
A Porsche 944 Turbo has a rated engine power of 217hp . 30% of the power is lost in the drive train, and 70% reaches the wheels. What is the maximum acceleration of the Porsche on a concrete surface where
Two long thin parallel wires 13.0 cm apart each carry 25 A currents in the same direction as shown in the figure below. What is the magnitude of the magnetic field B_2 at point P from wire 1?
Consider the decay: 24 Cr 55 -> 25 Mn55 + e, The Cr 55 nucleus has a mass of 54.9279 u, find the maximum kinetic energy of the emitted electrons
A 1.50 103-kg car starts from rest and accelerates uniformly to 15.8 m/s in 13.0 s. Assume that air resistance remains constant at 400 N during this time. Find the average power developed by the engine
Assume a dampening depth, d, of 30 cm and a period, lambda, of 24 hours (8.64 x 104 sec). Assume a volumetric heat capacity, C, of 0.5 cal/cm °C, find the thermal diffusivity and conductivity
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. What is the work done on the jet by the catapult
Of the following materials, which would you expect to be paramagnetic, and which diamagnetic? Aluminum, copper, copper chloride, carbon, lead, nitrogen gas, table salt, sodium, sulfur, water. Be resourceful and verify your predictions. Are there any ..
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