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Photons of wavelength 220nm impact on a metal target and liberate electrons with kinetic energies ranging from 0 to 61X10 to the -20 power J. Determine the cutoff wavelength.
An angler hangs a 4.52-kg fish from a vertical steel wire 1.65m long and 5.47×10?3cm2 in cross-sectional area. Calculate the amount the wire is stretched by the hanging fish
The traces of the rain on the side windows of the car make an angle of 60.0 with the vertical. Find out the velocity of the rain with respect to the following reference frames.
A 715 kg car moving at 28 m/s brakes to a stop. The brakes contain about 17 kg of iron that absorb the energy. What is the increase in temperature of the brakes
A baseball and a bowling ball are both rolled off a level table at the same time. which will hit the ground first
A 1.80kg block slides on a rough horizontal surface. The block hits a spring with a speed of 2.50m/s, what is the force constant of the spring?
A capacitor consists of two parallel plates, each with an area of 16.0 cm2, separated by a distance of 0.250 cm. What is the charge on either plate
Two metal balls A and B of negligible radius, connected by a taut nonconducting thread of length 2.40 m, are floating at rest on Space Station Freedom between two metal bulkheads. Ball A carries charge q, and ball B carries charge 2q.
A white billiard ball with mass mw = 1.49 kg is moving directly to the right with a speed of v = 3.06 m/s, What is the final total energy of the system
a ship's horn can be heard above typical background noise if at intensity level 20 dB. what must be the power of the horn's output to achive this level at 5.0 km away
At t = 0, an automobile traveling north begins to make a turn. It follows one-quarter of the arc of a circle of radius 10.8 m until, Find the change in its velocity during the turn
Three 1kg masses are at the vertices of an equilateral triangle of sides 10 cm. determine the location of the center of mass (x,y)
Consider an ideal gas at 28.9°C and 0.96 atm pressure. To get some idea how close these molecules are to each other, on the average, imagine them to be uniformly spaced,
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