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A sinusoidal wave of wavelength 1.95m and amplitude of 0.125m travels on a string with a speed of 1.12m/s to the right. The left end of the string (x = 0) is at the origin when t = 0. Calculate
(a) the angular frequency,
(b) the (angular) wavenumber,
(c) the y-location of the string at x = 1.5m when t = 0, and
(d) the maximum speed of any element in the string?
How greatly time elapses before the compass hits the ground
A wire 25.1 m long and 6.00 mm in diameter has a resistance of 15.0 m. A potential difference of 27.0 V is applied between the ends. Calculate the resistivity of the wire material
A diffraction grating with 300 lines per mm is used in an experiment to study the visible spectrum of a gas discharge tube. At what angle from the beam axis will the first order peak occur if the tube emits light with wavelength of 500.7 nm? At what ..
A motorist travelling at 17m/s encounters a deer in the road 49m ahead. If the maximum acceleration the vehicle's brakes are capable of is -7 m/s2. If his or her reaction time is 1.9987 s, how fast will (s) he be travelling when (s) he reaches dee..
The coefficient of performance of a refrigerator is 4.70. The compressor uses 20.0J of energy per cycle. How much heat energy is exhausted per cycle
A group of particles is traveling in a magnetic field of unknown magnitude and direction. compute the magnitude and the direction of the magnetic field
Positronium is a hydrogen atom with the proton replaced by a positron (like electron, but w/ positive charge). Calculate E1 for positronium.
Larry tosses a volleyball to his wife, Lise, who catches it at the same height from which it was tossed. what was the initial horizontal velocity
A particular wire has a resistivity of 2.7 ? 10-8 ·m and a cross-sectional area of 4.1 ? 10-6 m2. What length of wire is required
Two clocks are synchronized. One is placed in a race car that drives around a 2.0-km-diameter track at 130 m/s for 24 hours. by how much do the two clocks differ
A block slides down an inclined plane of slope angle ? with a constant velocity. How far up the incline will it move before coming to rest
At t = 0 an electron crosses the positive y-axis (so x = 0) at 42 cm from the origin with velocity 4. 105 m/s in the positive x-direction. What work is done on the electron during this motion
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