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a) Two long parallel wires carry currents of 3.95 A and 4.77 A. The magnitude of the force per unit lengh acting on each wire is 6.85 × 10-5 N/m. Find the separation distance of the wires expressed in millimeters.
b) Two long parallel wires are separated by 6.95 cm and carry currents 2.97 A and 3.53 A. Find the magnitude of the magnetic force that acts on a 3.25-m length of either wire.
A bullet of mass mb = 16 g is fired with a speed of 260 m/s at a target that is a sheet of metal (mass mt = 410 g). what is the angular velocity of the target plus bullet just after the bullet hits
A construction crew pulls up an 87.5-kg load using a rope thrown over a pulley and pulled by an electric motor. How much work was done by the motor
An iced tea glass is 15 cm tall and has a diameter of 8.0 cm. The glass sits on a garden table on a sunny day and is completely filled to the brim with water, What is the value of the angle
For a mass spectrometer the magnetic field is varied to allow ions of varying mass to reach the detector. A different method would be to maintain a constant magnetic field and vary the accelerating potential difference of V.
A coin is tossed upward with an initial speed of 7.5 m/s2, What is the total time it is in the air before returning yo it's releasing point
A metal wire 1.3mm in diameter and 1.8m long hangs vertically with a 5.4-kg object suspended from it. what is the value of the Young's modulus for the metal
The maximum possible efficiency of a heat engine which exhaust its heat at a temperature of 42.0o is 44.0 percent. What is the minimum value of the temperature
A 240kg block with mass density of 1200kg/m^3 was accidentally dropped into water and sink. What force should be applied to the block to pull it out of water
A small light has a 1.0 V, 4.8 W bulb that is powered by a transformer concocted to a 120 V dc power source. How many turns does the primary coil have
Helium, the second most abundant element in the universe, can exist as a monatomic gas. What is the internal energy of the gas
A circular wire loop of radius 11.3 cm carries a current of 3.48 A. What is the magnitude of the torque acting on the loop
A child goes down a playground slide with an acceleration of 1.20 m/s2. Compute the coefficient of kinetic friction between child and slide if the slide is inclined at an angle of 32.2° below the horizontal.
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