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Point A is the midpoint of one of the sides of a square. On the side opposite this spot, two in-phase loudspeakers are located at adjacent corners, as in Figure 27.39. Standing at point A you hear a loud sound because of constructive interference among the identical sound waves coming from the speakers. As you walk along the side of the square toward either empty corner, the loudness diminishes slowly to nothing and then increases again until you hear a maximally loud sound at the corner. If the length of all side of the square is 2.9 m, discover the wavelength of the sound waves.
A spelunker is surveying a cave. She follows a passage 150m straight west, then 230m in a direction 45, Use a scale drawing to determine the magnitude of the fourth displacement, Determine the direction of the fourth displacement
After an afternoon party, a small cooler full of ice is dumped onto the hot ground and melts. If the cooler contained 7.20 kg of ice and the temperature of the ground was 40.5°C, calculate the energy that is required to melt all the ice at 0°C. Th..
the pendulum in a grandfather clock has a period of 1.00 sec? if the clocks driving spring is allowed to run down
A light bulb has a resistance of 260 . It is connected to a standard wall socket (120 V rms, 60.0 Hz, Determine the rms current in the bulb
A 0.31 MeV x-ray photon collides with an electron and scatters straight back the way that it came. What is the energy of the backscattered photon
A rifle is aimed horizontally at a target 50 m away. The bullet hits the target 2.0 cm below the aim point. What is the bullet's flight time
A thin layer of liquid methylene iodide (n = 1.756) is sandwiched between two flat, parallel plates of glass (n = 1.50). What must be the thickness of the liquid layer
Consider the following figure. (The four charges are at the corners of a square. Take q = 1.08 µC and Q = 2.30 µC.) In the figure, what are the magnitude and direction of the resultant force on q1? (Take q1 as the origin of the coordinate system and..
You are investigating an accident where a 1500 kg car that was parked without its emergency brake on rolled down a hill with a slope of 8 degrees a distance of 150 m, How fast was the car moving when it hit the van
While on vacation a tourist left the center of town in a rented car having an odometer reading of 26725.10 km. He traveled south of west of 6.00 h and then swung northeast for 14.0 h, ending up 420 km due east of the center of town. At that point ..
A 755 N man stands in the middle of a frozen pond of radius 8.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. How long does it take him to reach the south shore
q1. consider a too-small space station that consists of a 3.8 m radius rotating sphere. a man standing inside is 1.9 m
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