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An aluminum wire carrying a current of 6.0 A has a cross-sectional area of 4.0 ? 10-6 m2. Find the drift speed of the electrons in the wire. The density of aluminum is 2.7 g/cm3. (Assume that one electron is supplied by each atom.)
m/s
A heart defibrillator passes 11.8 A through a patient's torso for 5.00 ms in an attempt to restore normal beating. What was the path's resistance
An object is lifted vertically 2m and held there. If the object weighs 30N, how much work was done in lifting it. Describe it briefly.
A mass-spring system oscillates with an amplitude of 3.50 cm. If the spring constant is 241 N/m and the mass is 434 g, Determine the maximum speed of the object
An object is 12.0 cm to the left of a thin, diverging lens that has a focal length of magnitude 15.5 cm. Where is the resulting image located
A 965-kg satellite orbits the Earth at a constant altitude of 94-km. What is the change in the system's potential energy
A wheel that is rotating at 45 Rad/s is give an angular acceleration of 3 Rad/s (sqrd). Use gravity: 10 m/s, how long is the angular velocity of the wheel
Trucks with the noted masses moving at the noted speeds crash into barriers that bring them to rest with a constant force
A sledge loaded with bricks has a total mass of 18.1 kg and is puled at a constant speed by a rope inclined at 19.0^above The horizontal. determine the mechanical energy lost due to friction
A transformer with 1760 turns on the primary and 347 turns on the secondary is used in an electric slot car racing set to reduce the input voltage amplitude of 170 V from the wall output. What is the current amplitude in the primary coil
A plane is headed due west with an air speed of 224 m/s. Find the velocity of the plane relative to the earth
A conducting rectangular loop of mass M, resistance R, and dimensions w by l falls from rest into a magnetic field. All through the time interval before the top edge of the loop reaches the field, the loop approaches a terminal speed vT.
Two charges of +0.250 C are placed at the points (1.25 mm, 0) and (-1.25 mm, 0). A third charge of -0.450 C is placed at the origin. a. What is the electric field at the point (0, 2.20 mm)? b. At what point on the y-axis will E be zero? Show graph..
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