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A 2.00 meter long, straight rod is 1.00 mm in diameter an is made of pure copper (specific gravity 8.93). A uniform magnetic field is applied perpendicular to the wire and adjusted in strength until the wire just floats in the air! The magnetic field strength is measured to be 200.0 µT. What is the potential difference between the ends on the wire? resistivity of copper= 1.70x10-8 ohm-m
A 120 kg barrel which is initially at rest is rolled down an inclined plane. The friction between the barrel and the surface of the plane is negligible, calculate the barrel's velocity when it reaches the ground level
A thin rod of length 8.5 m and mass 23 kg is supported at a 37? incline. One support is 2.1 m, Find the normal force exerted on the rod by the upper support
An electron of ? = 0.999 993 moves along the axis of an evacuated tube that has a length of 2.69 m as measured by a laboratory observer S at rest relative to the tube
It exhausts the propellant in a 20-s “burn.” If the rocket, initially at rest, moves at 150 m/s after the burn, illustrate what impulse is experienced by the rocket sled?
what is the minimum coefficient of static friction required between tires and race track if the car is to stay on the track at a speed of 130m/s.
A 92 kg climber rappels down the rope applying friction with figure eight (piece of climbing equipment ) to reduce his his downward acceleration.
Planet Z is 7000km in diameter. The free-fall acceleration on Planet Z is 10.0m/s2, What is the free-fall acceleration
Calculate the mass of a solid gold rectangular bar with dimensions 3.50 cm x 14.0 cm x 27.0 cm. Density of gold is 1.93E4 kg/m^3
A charge Q is uniformly distributed along the x axis, what is the electric potential (relative to zero at infinity) at the point, x = 8.0 m, on the x axis,
what is the total amount of work done by friction. The supplies should be dropped how various seconds before the plane is directly overhead.
A student makes a simple generator by using a single square loop 24 cm on each side. The loop is then rotated at a frequency of 60 Hz in a magnetic field of 0.044 T.
A current of 2.0 A is flowing along the z-axis in the positive z direction from the origin to z=-2 m. Find the magnetic field, Which field is the strongest and Why
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