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A 200 g mass hangs from a spring with k A?value of 10N/m. At t=0 sec, the mass is 20 cm below the springs equilibrium position and moving upward at 100 cm/s.
a) What is the oscillation frequency?
b) What is the mass position at t= 1.0 sec?
c) What is the distance from the equilibrium position when v = 50 cm/s?
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Take element Z = 39 from the periodic table. Ionize it 38 times so that there is only one electron left orbiting around the nucleus. What is the ground state energy of the electron
during a racing event a 1400 kg car accelerates from 0 to 31 ms in 4.5 s. what is the net force exerted on the car?a
A nuclear power plant operates at 80% of its maximum theoretical (Carnot) efficiency between temperatures of 700°, how much exhaust heat is discharged per hour
An engineer is designing a pacemaker for cardiac patients. For the 20 year old woman, how many times must device have to beat for her to have a normal life expectancy.
A cylindrical region of space of radius R contains a uniform magnetic field B with direction into the page. Find the magnitude and direction of the induced electric field at r = 5.00 cm if the magnetic field changes at a constant rate from 0.500T to..
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