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A transformer consisting of two coils wrapped around an iron coreis connected to a generator and a resistor, as shown in thedrawing. There are 11 turns in the primary coil and 20 turns in thesecondary coil. The peak voltage in the resistor is 78 V. What is the peak emf of the generator?
Water flows trough a normal garden hose at 2 m/s. If a nozzle at the end of the hose reduces the cross sectional area to 5% of its original value, how fast does the water emerge from the hose nozzle
A 0.250 kg block is placed on a vertical spring (k = 5.0 x 10^3 N/m) and pushed downward, compressing the spring 0.10 m. As the block is free, it leaves the spring and continues to travel upward. What height above the point of release would the bl..
A sinusoidal electromagnetic wave having a magnetic field of amplitude 1.50uT and a wavelength of 430nm is traveling in the +x direction through empty space. What is the amplitude of the associated electric field
An L-R-C series circuit is constructed using a 175? resistor, a 12.5?F capacitor, and an 8.00-mH inductor, find the potential difference across the ac source
An electron has an initial velocity of 4.9 × 106 m/s in a uniform 1.9 × 105 N/C strength electric field, What is the direction of the electric field
A certain freely falling object, released from rest, requires 1.35 s to travel the last 24.0 m before it hits the ground. Find the total distance the object travels during the fall
You bike at 10.5 m/s directly away from your neighbor's trumpet sound and toward the sound of another neighbor's trombone, What frequency is the trombonist producing
Gas is contained in a 9.00-L vessel at a temperature of 24.0°C and a pressure of 6.00 atm. How many molecules are in the vessel
The fundamental frequency of a pipe that is open at both ends is 560 hz . a) How long is this pipe? Use v = 344m/s . b) If one end is now closed, find the wavelength of the new fundamental. c) If one end is now closed, find the frequency of the new f..
An electron in the hydrogen atom is in an excited state given by (n=4, l=3, ml=2, ms=1/2). List the possible final states the system could be in after the emission of photon. Include in the list the energies of the photon.
What's the difference between a rotational and a circular motion and Why does vertically falling rain make slanted streaks on the side windows of a moving auto
a rubber ball dropped from a height of 2 bounces back to a height of 1. draw the balls position and velocity graphs
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