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Two loudspeakers in a 20?C room emit 660Hzsound waves along the x -axis. What is the smallest distance between the speakers for which the interference of the sound waves is destructive?
A golf ball strikes a hard, smooth floor at an angle of θ = 31.6°, rebounds at the same angle. The mass of the ball is 0.043 kg, and its speed is 45m/s just before and after striking the floor. What is the magnitude of impulse applied to the golf bal..
Consider a stack of paper 3.0 meters high. each sheet of paper is the stack has a thickness of 0.01 centimeter
A driver in a car travelling at the speed of 78 km/h sees a cat km away on the road. How long will it take for the car to accelerate uniformly to a stop in exactly 99 m.
You drape a string over a pulley and hang a mass of 35kg from one end. You tie the other end to a point a distance L from the pulley so that the string is horizontal between this point and the pulley.
At what position is the third bead in equilibrium? Can it be in stable equilibrium.
What is the terminal speed at which the bar falls.
A velodrome track is banked so that a bicycle traveling at 43.5 km/h will have no tendency to slip to either side when traveling on the path that has a radius of curvature of 59.0 m
given an electrical circuit which consists of resistor and voltage sources, determine the current flows (i1,i2,i3, and i4) use the following values for the voltage and resistor sources: V1=20 volts V2=12 volts V3=40 volts, R1= 18 ohms R2= 10 ohms R3=..
There are two forces on the 2.13 kg box in the overhead view of the figure but only one is shown. For F1 = 26.7 N, a = 14.5 m/s2, and ? = 31.1°, find the second force in unit-vector notation
In effect, the first circular dark fringe in the diffraction pattern defines the size of the central bright spot on the moon. find the diameter (not the radius) of the central bright spot on the moon.
A positive image distance means that image is formed on the side of the lens from which the light emerges.
A 15 pF capacitor is charged to 1 kV and then removed from the battery and connected in parallel to an uncharged 65 pF capacitor, Find the change in energy
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