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Two wires are identical, except that one is aluminum and one is copper. The aluminum wire has a resistance of 0.16. What is the resistance of the copper wire?
If the ball is released from rest at a height of 0.78m above the bottom of the track on the no-slip side, what is its angular speed when it is on the frictionless side of the track? suppose the ball is a solid sphere of radius 2.3cm and mass 0.14k..
In a mass spectrometer, a singly ionized 24Mg ion has a mass equal to 3.983 10-26 kg and is accelerated through a 2.60-kV potential difference. Find the radius of curvature of the ion's orbit
a small freshman is released from rest and falls screaming 30.5 m near the surface of the earth. neglect air
The drill used by most dentists today is powered by a small air-turbine that can operate at angular speeds of 320000 rpm. How many revolutions does the drill bit make
After a shipwreck, a solid steel spoon lies at the bottom of the ocean, 5.65 below the surface. determine the fractional volume change in the spoon
Assume that the blocks accelerate as shown with an acceleration of magnitude = 0.250 and that the coefficient of kinetic friction between block 2 and the plane is = 0.400. Find out the mass of block 2, , when = 30.0.
A crate with mass 36.0 initially at rest on a warehouse floor is acted on by a net horizontal force of 142. Explain how far does it travel in 12s and what is its speed at that time?
A 30.0-kg block is resting on a flat horizontal table. On top of this block is resting a 15.0-kg block, to which a horizontal spring is attached. determine the amount by which the spring is compressed
While moving down the track at 10.0 m/s, you uniformly accelerate to 27.0 m/s in 10 s. Illustrate what is the average net force that you have applied to the car during the 10 s interval?
A 6000-kg truck is accelerating at 0.5 m/s2 up a slope of 5 degrees. calculate the driving force needed for the truck to accelerate up the incline
Consider a system of three noninteracting identical bosons that move in a common external one-dimensional harmonic potential. Find the energy levels and wave functions of the ground state
Coherent light with wavelength 601 passes through two very narrow slits, and interference pattern is observed on a screen a distance of 3.00 from the slits.
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