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A student argues the following:"We know that vmax = Aω. So if we know the position of a mass on a spring we can always get its velocity just by multiplying the position by ω." Point out the flaw in this student's argument.
A radio-frequency EM plane wave propagates in the x direction. Your radio gets the best reception when its antenna is parallel to the y-z plane, at a 30° angle to the y axis. Sketch this situation, and indicate the direction of the E and B vectors..
Suppose you measure the terminal voltage of a 3.260 V lithium cell having an internal resistance of 5.50 by placing a 1.00 kvoltmeter across its terminals, Find the actual terminal voltage to the nearest 0.01 V
An ideal gas expands at a constant total pressure of 2.5 atm from 3.45 L to 6.70 L. What is the total work done on the gas in the process
A satellite weighing 500 kg is in a circular orbit around the earth. It takes exactly 3 hours to go around the earth. What is the force of gravity on this satellite
You are given a sample of metal and asked to determine its specific heat. You weigh the sample and find that its weight is 26.0N, What is the sample's specific heat
It will be shown later that the scale height, H, is proportional totemperature, T. For an average temperature of 255 K, the scaleheight is 7.5 km assuming an isothermal atmosphere
Delivery trucks that operate by making use of energy stored in a rotating flywheel have been used in Europe. What is the kinetic energy of the flywheel after charging
find out the magnitude of an acceleration
A 10 kg dog is standing on scale in an accelerating elevator. If the scale reads 5 kg, what is the acceleration of the elevator
A Ferris wheel is moving at an initial angular velocity of 1.0 rev/53 s. If the operator then brings it to a stop in 2.8 min, what is the angular acceleration of the Ferris wheel
an engine, a piston oscillates with simple harmonic motion so that its position varies according to the expression, x = 3.00 cos 3t + ? divide by 4, Find the period and amplitude of the motion
A 100 m long solenoid has a radius of 0.050 m and 1.5 x 10^4 turns. Determine the self-induced emf in the solenoid due to the changing environment
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