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You need a transformer that will draw 16 W of power from a 220 V (rms) power line, stepping the voltage down to 12 V (rms)1. What will be the current in the secondary coil? Express your answer to two significant figures and include the appropriate units.2. What should be the resistance of the secondary circuit? Express your answer to two significant figures and include the appropriate units.3. What will be the equivalent resistance of the input circuit? Express your answer to two significant figures and include the appropriate units.
The magnitudes of the four displacement vectors shown in the drawing are A = 15.0 m at an angle of 20, B = 11.0 m at an angle of 90, C = 12.0 m at an angle of 35, and D = 17.0 m at an angle of 90. Determine the directional angle for the resultant tha..
What were the initial charges on the spheres? Since one is negative and you cannot tell which is positive or negative, there are two solutions. Take the absolute value of the charges and enter the smaller value here.
A 67-kg skier coasts up a snow-covered hill that makes an angle of 25° with the horizontal. The initial speed of the skier is 6.5 m/s. After coasting 1.9 m up the slope, What is the magnitude of the kinetic frictional force
A dynamite blast at a quarry launches a rock straight upward, and later it is rising at a rate of 15m/s. Assuming air resistance has no effect on the rock, calculate the total time the rock is in the air.
A transverse wave on a string is described by the wave function y = A0sin(kx + ωt) where A0 = 0.425m, k = 0.895rad/m, Calculate the transverse speed of the element
A 1.58m--long FM antenna is oriented parallel to the electric field of an EM wave. What is the rate of energy transport per square meter
A 44-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.0 m/s. determine her altitude as she crosses the bar
Two different wavelengths of light are incident on a diffraction grating. One wavelength is513nm and the other is unknown. If the3rdorder of the unknown wavelength appears at the same position as the2ndorder of the 513 nm light, what is the value of ..
An industrial laser is used to burn a hole through a piece of metal. The average intensity of the light is = 1.42 × 109 W/m2. find the magnetic field in the electromagnetic wave emitted by the lase
A production line inspector wants a mirror that produces an upright image within magnification of 7.4 when it is located 15 mm from a machine part.
An object is placed 19 cm to the left of a converging lens of focal length 30 cm. Find the position and magnification of the final image
What is the pressure (in kPa) exerted by an object that has a base which is 2cm by 4cm nd a weight of 45N.
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