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Two long parallel wires each carry 2.8A in the same direction, with their centers 1.5cm apart.Find the magnitude of the force of interaction (per length) between the wires.
The hydrogen spectrum has a red line at 656 nm and a violet line at434 nm. What angular separation between two spectral lines obtainedwith a diffraction grating that has 4880lines/cm?
A long solenoid of 500 turns carrying a current of 3.7 Amp produces within itself a uniform magnetic flux of 2.8 mWb. Find what is the self-inductance of the coil
An asteroid is discovered to have a tiny moon that orbits it in a circular path at a distance of 103 km and with a period of 47.0 h. The asteroid is roughly spherical (unusual for such a small body) with a radius of 24.9 km.
The frequency of light reaching Earth from a particular galaxy is 25.0% lower than the frequency the light had when it was emitted. What is the speed of this galaxy relative to the Earth?
A flywheel in the form of a uniformly thick disk of radius 1.68 m, Calculate the constant torque required to stop it in 4.50 min
A man with a mass of 58 kg stands up in a 72-kg canoe of length 4.0 m floating on water. How far does the canoe move
The potential difference between the plates of a leaky(meaning that charge leaks from one plate to the other) 2.0 uFcapacitor drops to one-fourth its initial value in 2.0s
A spring with spring constant 40N/m is attached to the ceiling, and a 5.5-cm-diameter, 1.5kg metal cylinder is attached to its lower end. what length of the cylinder is submerged
A uniform cylinder of radius 10 cm and mass 13 kg is mounted so asto rotate freely about a horizontal axis that is parallel to and3.2 cm from the central longitudinal axis of the cylinder.
A 1500kg weather rocket accelerates upward at 10m/s2. It explodes 1.9s after liftoff and breaks into two fragments, What was the speed of the heavier fragment just after the explosion
A horizontal disk, with a moment of inertia of 10 kg* square meters, relative to a vertical frictionless axis through its center, What is the total angular momentum before the collision
A communications satellite is a solid cylinder with mass 1135 kg, diameter 0.91 m, and length 1.75 m. Calculate the satellite's rotational kinetic energy about the rotation axis
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