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A 0.50 mm-wide slit is illuminated by light of wavelength 500 nm. What is the width of the central maximum on a screen 2.0 m behind the slit?
A guitar string with a mass of 10.0 g is 1.00 m long and attached to the guitar at two points separated by 61.6 cm. find the frequency of the replacement string's first harmonic
An object weighting 100N is traveling vertically upward from the ground in the absence of air resistance at a constant velocity of 5 m/s
A lumberjack (m= 98 kg) is standing at rest on one end of afloating log (m= 230 kg) that is also at rest. What is the velocity of the first log just before thelumberjack jumps off
a 2.0 kg box rests on a plank that is inclined at an angle of 65deg above the horizontal. the upper end of the box is
A 30nC charged particle and a 50nC charged particle are near each other. what is the magnitude of the electric field at its original position
When playing a game, a 45 kg boy jumps vertically upward from the top of a wardrobe with a speed of 5.5 m/s. How fast is he going as he lands on the mattress, 3 m below
As a result of the friction of tides, the earth rotates more slowly as time progresses. What is the torque(N*m) acting on the earth
A diver completes somersaults during a 2.1 sec dive. What was the diver's average angular speed during the dive
An 82 kg lumberjack stands at one end of a 355 kg floating log. Both the log and the lumberjack are at rest initially. If the lumberjack now trots toward the other end of the log with a speed of 2.70 m/s relative to the log, what is the lumberjack's ..
If linear momentum is conserved when there is no external force applied, how is angular momentum conserved? 2. The change in angular momentum with the change in time is equal to what?
when the pressure on saturated liquid water is suddenly reduced to a lower pressure in an adiabatic and aergonic
A 70 kg painter holding a 15 kg paint is climbing up a 30 m-long ladder, which weighs 20 kg, against a frictionless wall at an angle of 60 degree. how far could the painter go up along the ladder
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