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Estimate gasoline consumption
A. Using your own judgment, estimate the gallons of gasoline consumed in Norman, OK (100,000 people). State your assumptions.
B. From this number, extrapolate your estimation to the gasoline consumption in the entire country (US ~ 350 million people). After getting this number, look up the US annual gasoline consumption on the web site of the Energy Information Administration. Compare this number to your estimate and comment on the differences. Please, do not carry out the calculations in the reverse order. In fact, the two numbers do not have to match. You will get full credit as long as your assumptions and procedure are logical.
A rectangular coil with 20 windings carries a current of 1.87 mA flowing in the counterclockwise direction. What torque must be applied to the loop to hold it steady
A cylindrical lead rod with a diameter of 2.54 cm and a length of 76.2 cm is initially at a temperature of 20.0 C. After reaching equilibrium, what is the final temperature of the rod and the mercury
Object A, which has been charged to + 16nC , is at the origin. Object B, which has been charged to ? 20nC , is at (x,y)=(0.0cm,2.0cm). What is the magnitude of the electric force on object A
The hydrogen alpha emission spectra has a 658.28 nanometer wavelength. What is the red-shifted wavelength of hydrogen alpha light from the bootes galaxy cluster
A particle with a charge of q = -5.60 nC is moving in a uniform magnetic field of B= (-1.23 T) z. Calculate the x component of the velocity of the particle
In a non-conducting region, voltmeter measurements show that the potential has a spherical symmetry, Find the differential volume in the annulus between rand r + dr
A source of AC voltage with a frequency of 60 Hz, Find the shortest time in seconds required for the voltage across the light bulb to reach 170 V
In a certain series RLC circuit, Irms = 9.00 A, ?Vrms = 155 V, and the current leads the voltage by 31.0°. What is the total resistance of the circuit
a 25 micro f c1 and a 40 micro f capacitor c2 are charged by being connected across separate 70v batteries. the caps
An air-filled parallel-plate capacitor has plates of area 2.70 cm2 separated by 2.00 mm. The capacitor is connected to a 18.0-V battery. What is the magnitude of the uniform electric field between the plates
1.calculate the average speed if you run 40m in 10 seconds.2.calculate the average speed of a cheeta that runs 130
The resistances of the primary and secondary coils of a transformer are 59 and 13 Ω, correspondingly. Both coils are made from lengths of the similar copper wire. The circular turns of each coil have the similar diameter. Find the turn’s ratio Ns/Np.
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