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A Doppler speed meter operating at exactly 1.02 x 10^5 Hz emits sound waves in the direction of anoncoming baseball. The meter detects the reflected sound waves and measures a beat frequency of .30
Derive the explicit form inx-y coordinates for the potential contribution due to the fourths-derivative T of the octupole strength, for octupole phase equal to zero, and factor out the fourth deriva
Assume the home uses about 850 kWh of electricity per month, which corresponds to approximately of electrons at the voltage of a fuel cell. 2.65*104
Read the article Basic Choices and Constraints on LongTerm Energy Supplies Paul B. Weisz. Summarize the article in your own words (provide a one-page report).
Some analysts estimate that cars and trucks could be made 60% more efficient than they are currently. How long will the Alaskan oil reserves last if the annual transportation energy demand is redu
A solid disk (r=0.20 m, M=0.50 kg) is suspended from the end of an L=0.30m long rod (m=0.30kg, crosssectional area of 2.0 cm^2).This pendulum is suspended on a frictionless pivot on the rod at the e
Using reliable sources, write a summary of the concept of energy return on energy invested (EROEI). Provide some estimates of the EROEI for petroleum extraction from tar sands.
Calculate the per capita energy use for China and India. The populations of each country should be obtained from reliable sources.
Write a summary of the concept of energy return on energy invested (EROEI). Provide some estimates of the EROEI for petroleum extraction from tar sands.
The image behind a convex mirror (radius of curvature = 92 cm) is located 8 cm behind the mirror. determine Where is the object located
A mirror produces an image that is located 22.00 cm behind the mirror when the object is located 5.50 cm in front of the mirror, determine Is the mirror concave or convex
A resonant circuit in a radio receiver is tuned to a certain station when the inductor has a value of .250 H, find the wavelengths sent out by the station
Jack was exposed to fast neutrons; he received a radiation dose of 180 rem on part of his hand, affecting 24.0 g of tissue. What was the total energy of the radiation Jack received
A metal rod 3 meters long is held in place by a cable with tension T, the cable is attached to the rod 1 m from the end (r1). what is the weight of the rod and tension in the cable
Bloodhound, a 1,000 mph super-sonic car can accelerate from a standing start to 1000 mph in less than 42s. During this time it "stays on the ground at all speeds". Calculate Bloodhounds acceleration
A coaxial cable has an inner wire of radius 0.3 mm. with a linear charge density of 4.4E-08 C./m., find the potential difference between the two conductors
n RLC circuit is used to tune the radio to an FM station broadcasting 99.0 MHz. What value inductance should be used in the circuit
In an RLC circuit the rms current is 7.00 A, the maximum voltage 230. V, and the current lags the voltage by 53 degrees. Find the average power dissipated in the circuit
Intelligent beings in a distant galaxy send a signal to earth in the form of an electromagnetic wave. What is the speed vrel of the galaxy relative to the earth
A 70 ohms resistor, a .1100 H inductor and a 14.0 microfarad capacitor are connected in series to a 60.0 Hz source. The rms current in the circuit is 2.80 A. Find the rms voltage of the source
a spring with a spring constant of 270 n/m iscompressed by 14cm.a 880g ball is attached to the end and the spring is released. what is the initial acceleration of the ball
A hydrogen atom is in a state with energy -0.850. what is the angular momentum of the electron in the atom
a 125g mass attached to a spring oscillates with an amplitude of 7.8cm and a maximum speed of 0.625m/s. find the force constant and period of motion
A 100 incandescent light bulb has a cylindrical tungsten filament 33.0 long, 0.430 in diameter, and with an emissivity of 0.200. What is the temperature of the filament
A distant galaxy is 320 Mly away. Assume that the Hubble constant is 22 km/s per Mly. What is the speed of the galaxy in m/s