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A spring constant 400N/m is hung from a hook. A fish is hung from the spring and is pulled down 6.5 cm past its equilibrium position, then released to oscillate in simple harmonic motion. If the mass of the fish is 1760 g, what is the period of its oscillation?
Two coils have the same number of circular turns and carry the same current. Each rotates in a magnetic field acting perpendicularly to its axis of rotation, What is the radius (in cm) of coil 2
an electron with a kinetic energy of 10ev is moving from left to right along the x-axis. the potential energy is v0 for
An ocean liner leaves New York City and travels 34.0° north of east for 169 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the subsequent directions.
A 222 kg iceboat (like a boat on skates) glides with initially velocity 3.33 m/s northward across a frozen lake where m= 0.10. The wind then exerts on the boat a constant force of 444 N, 67.5° (i.e. NNE) as the boat travels 111 m, 90.0° (i.e. due no..
An elevator cable breaks when a 975 kg elevator is 24.5 m above the top of a huge spring (k = 8.00 x 10^4 N/m) at the bottom of the shaft. Calculate the amount the spring compresses
Parallel rays of monochromatic light with wavelength 585nm illuminate two identical slits and produce an interference pattern on a screen that is 75.0cm from the slits. what is the intensity at a point on the screen
During a running long jump, an athlete runs with a speed of 9 m/s horizontally and, upon take off, how far will the athlete jump
A bunch of grapes is placed in a spring scale at a supermarket. The grapes oscillate up and down with a period of 0.64s, What is the mass of the grapes
Solid sphere Is released from a distance of.39 up a incline of 20 degrees. How far up should a solid cylinder of same mass and radius be to have same speed?
Large conventional electromagnets use water cooling to prevent excessive heating of the magnetic coils. ow many liters of water must circulate by the coils each second if the temperature of the coils is not to exceed 50 degree C
What is the fundamental difference between electric field lines between positive and negative charges and magnetic field lines betwen north pole and south pole?
A 70 kg painter holding a 15 kg paint is climbing up a 30 m-long ladder, which weighs 20 kg, against a frictionless wall at an angle of 60 degree. how far could the painter go up along the ladder
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