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An electromagnetic plane wave at a certain location has an electric field pointed up which is given as a function of time as E = 54 V/m × sin (6x106 Hz × t). The magnetic field at the same location points south when the electric field points up. What is the Poynting vector at this location for this wave as a function of time? What is the wavelength of the wave?
A 1800 kg car is moving westward with a speed of 26 m/s, and a 2900 kg truck is traveling east with a speed of 14 m/s. Find the velocity of the center of mass of the system
A well insulated rigid vessel also contains 3 kg of saturated liquid water at 40 oC. The vessel also contains an electrical resistor that draws 10 amperes when 50 volts are applied.
The water level in a vertical glass tube 1.150 m long can be adjusted to any position in the tube. What is the greatest depth of water for which there will be resonance in the air in the tube
a 0.346kg glider moves along a frictionless level air track tugged by a mass of 0.050kg suspended vertically over a pulley
The electric motor of a model train accelerates the train from rest to 0.540 m/s in 31.0 ms. Find the average power delivered to the train during its acceleration
assume a bar 2 m long expands 0.6 cm when heated. By how much will a bar 100 m long of the same material expand when similarly heated.
Consider purchasing a new tire with a warranty of 6.4 x 10^7 meters. Calculate the thickness of the tread that will be worn away with each revolution of the tire
Ice of mass 45.5 g at -10.9° C is added to 212 g of water at 15.8° C in a 101 g glass container of specific heat 0.200 cal/g-°C at an initial temperature of 22.7° C
A single conservative force F(x) acts on a 2.9 kg particle that moves along an x axis. The potential energy U(x) associated with F(x) is given by U(x) = -3.8xe^-x/5, What is the mechanical energy of the system
An L-R-C circuit has an inductance of 0.410 , a capacitance of 2.75×10?5 , and a resistance of R. What is the angular frequency of the circuit
Determine the inductance of an LC circuit that is used to receive the signal of a radio station on the frequency 104.7 MHz
A charge q= +5.80 uC is located in the center of a regular tetrahedron, Find the total electric flux through the tetrahedron, the electic flux through one face of the tetrahedron
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