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A current carrying wire of length 0.5m is at the Equator. Assuming that the magnetic field of the earth has a magnitude of 5E-5T at the Equator and is parallel to the surface of the Earth and that the current in the wire flows toward East, what current is required to allow the wire to be suspended? Assume the mass of the wire is 0.05 gram.
An electron and a 140-g baseball are each traveling 200m/s measured to an accuracy of 0.095%, Calculate the uncertainty in position of the baseball
A long sighted person can only see clearly objects further than 1.2 m away.They wish to read a book held 30 cm away. Calculate the power (in diopters) of the lens in thier corrective spectacles:
Compute approximately the time the ball is in contact with the floor to be 0.04 seconds. Compute the average force the floor exerts on the ball.
The index of refraction for a certain kind of glass is 1.645 for violet light and 1.615 for red light. A ray of violet light and a ray of red light are both incident on this glass from air and both have the same refraction angle of 31.12o. What is th..
q1. clarify how einsteins contribution to understanding the force between the earth and the moon differed from newtons.
A certain car battery with a 12.0 V emf has an initial charge of 115 A·h. Assuming that the potential across the terminals stays constant until the battery is completely discharged, for how various hours can it deliver energy at the rate of 110 W.
two tiny conducting spheres are identical and carry charges of -18.2 microc and 53.0 microc. they are separated by a
A galvanometer with a full scale sensitivity of 500 muA and a coil resistance of 54 Omh, What is the required shunt resistance
A 3400 resistor and a 1.6 µF capacitor are connected in series across a generator (60.0 Hz, 120 V rms). Determine the average power dissipated in the circuit
An RLC circuit with R = 20.4? , L = 355mH , and C = 48.8?F is connected to an ac generator with an rms voltage of 21V, Determine the average power delivered to this circuit when the frequency of the generator is twice the resonance frequency
An electron on the axis of an electric dipole is 37 nm from the center of the dipole. What is the magnitude of the electrostaticforce on the electron if the dipole moment is 4.6 x10-28 C·m? Assume that 37 nm is much larger than the dipole charge se..
A small block with mass 0.0475kg slides in a vertical circle of radius 0.0710m on the inside of a circular track. What is the magnitude of the normal force that the track exerts on the block when it is at the top of its path
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