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A vertical, 1.10-{m} length of 18-gauge (diameter of 1.024 {mm}) copper wire has a 200.0-N ball hanging from it. What is the wavelength of the third harmonic for this wire? A 1000-{\N} ball now replaces the original ball. What is the change in the wavelength of the third harmonic caused by replacing the light ball with the heavy one?
You have a wire of length L = 2.4 m for making a square coil of a dc motor. Find the maximum torque exerted on the coil
A light platform is suspended from the ceiling by a spring. A student with a mass of 74 kg climbs onto the platform. At what time does the maximum speed occur
A hunter on a frozen, essentially frictionless pond uses a rifle that shoots 4.20g bullets at 960m/s. Find the recoil velocity of the hunter if he fires the rifle horizontally
A spring with spring constant k stands vertically, and a massm is placed on top of it. The mass is gradually lowered toits equilibrium position. How many times does the mass oscillate back and forthbefore coming to rest
Given that the carbon atom has a mass of 12 amu, how many carbon atoms are there in a diamond with a mass of 8 g
The Hubble Space Telescope (HST) has excellent resolving power because there is no atmospheric distortion of the light. Its 2.4-m-diameter primary mirror can collect light from distant galaxies that formed early in the history of the universe. How fa..
A rope attached to a 20.0kg wood sled pulls the sled up a 20.0? snow-covered hill. at what value of the tension does the box slip
A -6.00 µC charge is moving with a speed of 7.80*104 m/s parallel to a very long, straightwire. The wire is 5.00 cm from the charge and carries a current of78.0 A in a direction opposite to thatof the moving charge. Find the magnitude and directio..
A boat moves through the water with two forces acting on it. One is a 1500 N forward push by the water on the propeller, What is the acceleration of the 1400 kg boat
You are pulling a suitcase through an airport at a constant speed. The handle of the suitcase makes an angle of 60 degrees with respect to the horizontal direction, what is the contact force due to the floor acting on the suitcase
A wooden plank is placed over a pit that is 5.00 m wide. A student stands in the middle of the plank and begins jumping upand down such that she jumps two times each second. What is the speed of the travsverse waves on the plank
A student makes a short electromagnet by winding 160 turns of wire around a wooden cylinder ofdiameter d = 4.0 cm. What is the magnetic moment of this device
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