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Two vertical parallel wires carry current in opposite directions. The left wire has a current of 2A and the right wire has a current of 5A. Where will the net magnetic field be equal to zero (neglecting Earth's magnetic field)?
A hydrogen ion is moving at 100,000 meter per second toward fixed, stationary hydrogen. Evaluate the closest approach of these two ions
A block, mass m, slides down a ramp inclined 27 degrees above the horizontal. Calculate the speed of the block if it begins at rest
Suppose you carry a bag of groceries weighing 124 N from your car to your kitchen, a distance of 61 m, find the work done by the force you exert on the bag
A helium-neon laser of the type often found in physics laboratories has a beam power of 4.00 mW at a wavelength of 633 nm. Calculate the force exerted on this sphere
The kinetic energy of a particle is equivalent to the energy of a photon. The particle moves at 4.8 percent of the speed of light. Obtain the ratio of the photon wavelength to the de Broglie wavelength of the particle
Two equally charged insulating balls each weigh 0.40 g and hang from a common point by identical threads 45 cm long. The balls repel each other so that the separation between their centers is 6.6 cm.
Two large metal plates of area 0.5 m2 face each other. They are 4.8 cm apart and have equal but opposite charges on their inner surfaces. what is the magnitude of the charge on each plate
Consider a rocket-powered hockey puck, and assume the rocket produces a constant acceleration when the rocket is on. Determine the impact location and the impact speed of the puck
The heating element in an electric drier operates on 240 V and generates heat at the rate of 2.0 kW. The heating element shorts out and, in repairing it, the owner shortens the Nichrome wire by 10%. (Suppose the temperature is unchanged.
Assuming a deuteron and a triton are at rest when they fuse according to the reaction shown below. determine the kinetic energy acquired by the neutron
A ball is thrown directly upward with an initial velocity of 10 m/s. how long is the ball in the air
A 15.5kg object moving in the +x direction at 7.0m/s collides head-on with a 11.0kg object moving in the -x direction at 6.0m/s, Find the final velocity of each mass if the objects stick together
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