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At a party, a stereo system comprises of two identical balancedspeakers located right next to each other, and they are playing atmaximum volume. A drunken participant trips over one of thespeaker wires and disconnects it leaving the one remaining speakerin operation. Determine the reduction in sound intensity.a. 1 dBb. 2 dBc. 3dBd. 4dBe. 5dB
A 1700kg car travelling at a speed of 40m/s skids to the halt on wet concrete where f_k = 0.3. How long are the skid marks.
A 30-meter steel tape is correct at a temperature of 20.0(C). The distance between two points, What is the true distance between the points
An 19.3kg box is released on a 36.1o incline and accelerates down the incline at 0.276m/s2. What is the magnitude of the friction force impeding its motion
A 155 g copper bowl contains 245 g of water, both at 20°C. A very hot 300 g copper cylinder is dropped into the water, causing the water to boil, with 5 g being converted to steam. The final temperature of the system is 100°C. Neglect energy trans..
John starts at the origin and walks 3.0 km due east. If he then walks 30? north of east for 8.0 km, what is his distance from the origin (in km)
An aluminum rod of length l has a resistance of .8 ohms. Half of the rod is machined down so that half of the rod now has half of the radius of the original radius. What will be the new resistance
A record turntable rotating at 33(1/3)rev/min slows down and stops in 21 s after the motor is turned off. How many revolutions does it make in this time
A go-kart travels a complete lap on a circular track with aradius of 500m in 50s. What is the average speed of the go-kart? What is the average velocity of the go-kart?
A real object is 42.1 cm from a negative lens that has a focal length of 25.6 cm. The object is 2.45 mm high. The height and orientation of the image are
What is the magnitudeof the electric field at a distance of 4.10×10−10 m from a uraniumnucleus? What is the magnitude of the force on anelectron at that distance?
A burglar alarm in a house emits sound at a fixed frequency of 3.1 kHz. On a windy day a person cycles past the house while the alarm is sounding. What frequency does the cyclist hear
a 100 ohm resistor, a 0.100micro F capacitor, and a 300mH conductor are connected in series to a voltage source with amplitude 240 V, hat is the maximun voltage across the capacitorat resonance
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