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An object with mass 4.0 is attached to a spring with spring stiffness constant 230 and is executing simple harmonic motion. When the object is 1.9×10?2 from its equilibrium position, it is moving with a speed of 0.65 . Calculate the amplitude of the motion. Calculate the maximum velocity attained by the object. [Hint: Use conservation of energy.]
Three successive resonance frequencies for a certain string are 481., 518., and 555. Hz. What is the fundamental frequency
Tarzan swings on a 28.0-m-long vine initially inclined at an angle of 37.0° with the vertical. What is his speed at the bottom of the swing if he starts from rest
One particle has a mass of 4.41 x 10-3 kg and a charge of +6.92 ?C. A second particle has a mass of 6.52 x 10-3 kg and the same charge. Find the initial separation between the particles
A cat rides a merry-go-round while turning with uniform circular motion. At time t1 = 2.00 s, What is the magnitude of the cat's centripetal acceleration
A parallel-plate capacitor has 3.95 cm2 plates that are separated by 4.29 mm with air between them. If a 11.2 V battery is connected to this capacitor, how much energy does it store? The value of the permittivity of a vacuum is 8.8542 × 10 ^?12 C^..
A battery has an emf of 15.0 V. The terminal voltage of the battery is 10.2 V when it is delivering 24.0 W of power to an external load resistor R. What is the internal resistance of the battery
Units of km
two 1.3kg masses are 1.2m apart (center to center) on a frictionless table. Each has + 9.2?Cof charge, What is the magnitude of the electric force on one of the masses
A light plane is headed due south with a velocity of 157 km/h relative to still air. After 1.00 hour, the pilot notices that they have covered only 121 km and their direction is not south but southeast (45.0^circ).
A mountain climber stands at the top of a 32.5-m cliff that overhangs a calm pool of water. What initial velocity must the second stone have had, given that they hit the water simultaneously
a drag racer starts her car from rest and accelerates at 9.2 ms2 for the entire distance of 631 m.how long did it take
The speed of sound in air is 345 m/s. A tuning fork vibrates above the open end of a sound resonance tube. what is the frequency (in Hertz) of the tuning fork
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