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A uniform magnetic field of 1.5 T exists in a cylindrical region of radius10.0 cm, its direction parallel to the axis along east to west. A wire carrying current of 7.0 A in the north to south direction passes through this region. What is the magnitude and direction of the force on the wire if,
(a) the wire intersects the axis,
(b) the wire is turned from N-S to northeast-northwest direction,
(c) the wire in the N-S direction is lowered from the axis by a distance of 6.0 cm?
Two identical objects each hold a net charge of q = 9e. If the gravitational force between the two objects exactly cancels the electrostatic force between the objects, what is the mass of each object
A flywheel for energy storage in a hybrid gasoline-electric car is a ring-shaped rotor of mass 49 kg, designed to rotate at 30000 rpm. What is the ring's diameter
a 100kg person sits 2.0m from the pivot on a seesaw. a second person sits 3m from the pivot on the opposite side. What is this persons mass
A very long cylinder with radius a carries uniformly distributed volume charge density rho. the electric potential at its center is 0. Find the potential at all points outside the cylinder
A) How fast should the car be traveling just as it leaves the cliff in order to just clear the river and land safely on the opposite side? B) What is the speed of the car just before it lands safely on the other side?
How far from the lens should an object be placed so that its (virtual) image is at the near-point distance of 25 if the magnification is 8X
Consider the following two-step process. Heat is allowed toflow out of an ideal gas at constant volume so that its pressuredrops from P1 = 2.02 atm toP2 = 1.62 atm. Calculate the total heatflow into or out of the gas
When a car is traveling at 25 m/s on level ground, the stopping distance is found to be 22m. This distance is measured by pushing hard on the brakes so that the wheels skid on the pavement. The same car is driving at the same speed down an incline th..
A person throws a rock straight up into the air. At the moment itleaves the person's hand it is going 33mph. When the rock reaches its peak, how fast is it going and what is the magnitude and direction of its acceleration?
Two balls are rolled off the tabletop that is 0.75m above the floor. Ball A has a horizontal velocity of 3.2 m/s, how far does each ball travel horizontally before hitting the floor
A car weighing 1.09 104 N is at rest on a 30.5° incline. Each wheel bears an equal part of the car's weight. Find the frictional force exerted by the road on each wheel
Two loudspeakers emit 400Hz notes. One speaker sits on the ground. The other speaker is in the back of a pickup truck, What is the truck's speed in m/s
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