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A 18 kilo-ohm resistor is in series with a 75-mH inductor and an ac source. Evaluate what the impedance of the circuit if the source frequency is 70 Hertz. Evaluate what the impedance of the circuit if the source frequency is 3.6 x 104 Hertz.
A 40 kg artillery shell was fired from a cannon with an initial speed of 84 m/s at a 45° angle above the ground. How far from the cannon (in m) did the lighter piece land
suppose the length L of the uniform bar is 3.00 m and its weight is 230 N. Also, let the block's weight W = 350 N and angle ? = 30°. find the maximum possible distance x before the wire breaks
The area of a typical eardrum is about 5.0x10?5 m2. What is the sound power (energy per second) incident on the eardrum at the threshold of hearing
The temperature at Furnace Creek in Death Valley reached 134°F on July 10, 1913. What is the speed of sound in air
on a distant planet golf is just as popular as it is on earth. a golfer tees off and drives the ball 4.80 times as far
An object of mass 6.8kg is attached to a spring of force constant 1870 N/m. Calculate the maximum velocity the object has during its motion
A string of length L, which is clamped at both ends and has a tension T, is pulled aside a distance h at its center and released. What is the energy of the subsequent oscillations
the speed of a transverse wave on a string is 420 ms and the wavelength is 0.12 m. the amplitude of the wave is 2 mm.
consider a black body of surface area 20 cm2 and temperature 6000 k.a how much power does it radiate?b at what
An automobile radiator is filled to the brim with 45 liters of glycerin coolant at 10 degrees C. How much glycerin overflows from the radiator as a result of expansion
An immersion heater used to boil water for a single cup of tea plugs into a 120 V outlet and is rated at 300 W. What is the Resistance of the Heater
Ball A moving to the east collide with ball B and C which are atrest. Find the magnitude of the origin speed
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