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Two waves traveling in opposite directions along a string fixed at both ends create a standing wave described by y(x, t) = 0.01 sin(44x)cos(1090t). The string has a linear mass density of 0.01 kg/m, and the tension in the string is supplied by a mass hanging from one end. If the string vibrates in its third harmonic, calculate the following.(a) the length of the string(b) the velocity of the waves(c) the mass of the hanging mass
A brass plate with a thickness of 1.00 cm is placed over a copper plate with a thickness of 2.00 cm, What is the effective coefficient of thermal conductivity for the brass - copper layer
A series RLC circuit consists of a 96.0 ? resistor, a 7.00 mHinductor, and a 1.40 nF capacitor. What is the power supplied to the circuit if ? =1/2?0
A racquet ball with mass m = 0.237 kg is moving toward the wall at v = 12 m/s and at an angle of ? = 30° with respect to the horizontal. What is the change in kinetic energy of the racquet ball
Two long parallel wires are 6cm apart and carry currents of 3 and 9amps resepctively in opposite directions
Suppose the skate boarder shown in problem 38 (cutnell & johnson, 9th ed) reaches a highest point of h=1.8 m above the right side of the semicircular ramp. What is the average frictional force exerted on the skateboarder by the ramp
What is the Acceleration of an object moving on a circular track
A spherical hot air baloon is initially filled with air at 118 kPa and 18°C and has an initial diameter of 4 m. What is the rate of change of the balloon's diameter when it reaches the inflated diameter
Two canoes are tied together and traveling down a river with the current. Spotting a waterfall, the two canoeists cut the rope, What is the combined mass of this canoe and rider
A top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the body of the top. What is the final angular velocity of the top
Objects that are at rest relative to Earth's surface are in circular motion due to Earth's rotation. What is the radial acceleration of a tree
You are consulting for an amusement park that wants to build a new "Rotor" ride. What must be the angular speed in revolutions per minute
A positively charged particle of mass 6.80 10-8 kg is traveling due east with a speed of 25 m/s and enters a 0.32-T uniform magnetic field. What is the magnitude of the magnetic force acting on the particle
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