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The chemical energy releasedby burning a gallon of gasoline is approximately1.3x10^5KJ.estimatethe total energy used by all of the cars in the US during thecourse of one year. what fraction does this represent of the totalenergy by the US in one year(currently about 5x 10^20 J)
Calculate the self-inductance of a 55.0 cm long, 10.0 cm diameter solenoid having 1000 loops. How fast can it be turned off if the induced emf cannot exceed 3.00 V
A crate of mass 56 kg is attached to one end of a string, and the other end of the string runs over a pulley and is held by a person, what is the crate's acceleration
An FM transmitter delivers 30 KW into a 50 ohm antenna. Calculate the modulation index, the sensitivity of the transmitter's modulator and write the equation of the FM signal
A 910 kg sports car collides into the rear end of a 2200 kg SUV stopped at a red light. calculates the speed of the sports car at impact
A 4.85 μF capacitor is initially charged to a potential of 16.4 V. It is then connected in series with a 3.85 mH inductor. What is the total energy stored in the circuit
A string is stretched between fixed supports separated by 86.5 m. It is observed to have resonant frequencies of 359.000 and 430.800 Hz, What is the wave speed for this string
A charge of 18.0?C is held fixed at the origin. If a -6.50?C charge with a mass of 3.00g is released from rest at the position (0.925 m, 1.17 m), what is its speed when it is halfway to the origin
How far apart are an object and an image formed by a 75-cm focal-length converging lens if the image is 2.64 X larger than object and is real.
The magnetic field of an electromagnetic wave is given by: B = 6.90 102 sin( 5.50 106 ( x - 3.0 108t )) where everything is in SI units. What is the amplitude of the electric field
A batter hits a fly ball which leaves the bat 0.88above the ground at an angle of 62 with an initial speed of 28 heading toward centerfield. Ignore air resistance. How far from home plate would the ball land if not caught? T
Sheena can row a boat at 3.10 mi/h in still water. She needs to cross a river that is 1.11 mi wide with a current flowing at 1.77 mi/h. Not having her calculator ready, what angle upstream should she have headed
In a period of 1.0 s, 5.01023 nitrogen molecules strike a wall of area8.0 cm2. find the pressure exerted on the wall
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