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A simple pendulum consists of a bob .085 kg attached to string of length 1.5 m Pendulum is raised to point Q, which is .08 m above its lowest point
1. Compute speed of the bob at its lowest point
2. Compute the tension in string when the bob is passing during its lowest position
The maximum wavelength an electromagnetic wave can have and still eject an electron from a copper surface is 264 {\rm nm}. What is the work function of a copper surface?
A 78.0 ohm and a 48.0 ohm resistor are connected in parallel. When this combination is connected across a battery, the current delivered by the battery is 0.275 A.
an alien pilot of an intergalactic spaceship on a mission to measure the sizes of galaxies is traveling at 0.86c
A. The rate of hydrogen fusion (proton-proton chain) near 10^7 K increases with temperature as T^5. If you raise the temperature of the hydrogen-burning core by 10 percent, how much does the hydrogen fusion energy increase?
A steam locomotive uses the back-and-forth motion of a drive rod to turn its 1.55 m diameter wheel. Each compete oscillation of the rod corresponds to one wheel revolution.What's the rod's oscillation frequency when the train is moving at 30 m/s ?
a steel ball is dropped from a buildings roof and passes a window taking 0.115 s to fall from the top to the bottom of
Tarzan swings through the jungle by hanging from a vine. Immediately after he steps off the branch, is Tarzan's acceleration zero or nonzero
A solenoid is formed by winding 16.0 m of insulated silver (resistivity 1.59 x 10-8 ?·m) wire around a hollow cylinder. The turns are wound as closely as possible without overlapping, and the insulating coat on the wire is negligibly thin.
Ideal incompressible water flows through a horizontal pipe of cross-sectional area 10.0 cm^2 at a pressure of 0.250 atm with a volume flow rate of 1.00 x 10^-3 m^3/s. What is the pressure at the valve
The problem states that initially the wire coil is oriented perpendicular to a magnetic field of 0.63T pointing up. Over time the field is changed to one of 0.25T pointing down. We are solving for the average induced emf in the coil.
Automobile windshield wipers can be used intermittently during rainfall. what determines the length of the intervals when the wiper is on and when it is off
The radius of the earth's very nearly circular orbit around the sun is 1.5x10^11. Find the magnitude of the earth's velocity as it travels around the sun
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