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The maximum wavelength that an electromagnetic wave can have and still eject electrons from a metal surface is 469 nm. What is the work function W0 of this metal? Express your answer in electron volts.
A mass of 1.7kg stretches a vertical spring 0.313 m. If the spring is stretched an additional 0.13m and released, how long does it take to reach (new) equilibrium position again.
A baseball leaves a pitcher's hand horizontally at a speed of 156km/h. The distance to the batter is 18.3 m. (overlook the effect of air resistance.) (a) How long does ball take to travel the first half of that distance? (b) The second half? (c) H..
A proton enters the region between the two plates shown in the figure moving in the x-direction with a speed v = 1.61 106 m/s. The potential of the top plate is Vt = 245 V, and the potential of the bottom plate is Vb = 0 V.
Asquare loop of wire surrounds a solenoid. The side of the square is0.1 m, while the radius of the solenoid is 0.025 m. The square loop has a resistanceof 30 Ω. The solenoid has 500 turns and is 0.3 m long
On a frictionless table, a glob of clay of mass 0.42 kg strikes a bar of mass 1.98 kg perpendicularly at a point 0.39 m from the center of the bar and sticks to it. At what angular speed does the bar/clay system rotate about its center of mass afte..
q1. what is the dissimilarity in your blood alcohol level between a full and empty stomach after you drank 3 malted
an 845 kg dragster accelerates from rest to 100 km/h in 0.90seconds. what is the average force exerted on the car
A stationary observer hears 597.6 Hz change to 447.8 Hz as a source of constant frequency passes at constant speed. find the source's speed and frequency
the back wall of a home aquarium is a mirror that is a distance of 46.0 cm away from the front wall. the walls of the
A cylindrical hoop and a spherical shell both roll without slipping and both have identical masses (6 kg) and identical radii (0.2 m). What is the velocity of each at the bottom of the hill
determine the mass of liquid ammonia that boils away before thermal equilibrium. Assume an excessive amount of liquid ammonia is present and that the liquid ammonia does not react with the copper.
An 900 kg purple pickup truck tows a small 200 kg trailer using a relatively lightweight tow rope. The position of the trailer is given in m and time is in s. What is magnitude of the net force on the trailer
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