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A damped mass-spring system oscillates at 228 Hz. The time constant of the system is 7.4 s. At t = 0 the amplitude of oscillation is 3.8 cm and the energy of the oscillating system is 21 J. What is the amplitude of oscillation at t = 4.7 s? Answer in units of cm.
Consider an athlete who jumps a horizontal distance of 9m after reaching a maximum height of 1.5m. What was the takeoff speed v0 of the athlete
What is the fractional change in the period of the pendulum.
20 g of helium are placed in a cylinder with a movable piston. What is the maximum temperature reached during the compression
Capacitors C1 = 3450 nF and C2 = 700 nF are initially connected in parallel and hold a combined charge of Qtoti = 783 nC. Find the total charge Qtotf and total energy stored in the final state
A 10 g sample of neon gas has 1700J of thermal energy. Estimate the average speed of a neon atom
Find a unit vector normal to both vectors A = 4a x - 3a y + a z and B = 2a x + a y - a z .
A parallel-plate capacitor is constructed of two horizontal 18.0-cm-diameter circular plates. A 1.7g plastic bead, with a charge of -4.0nC is suspended among the two plates by the force of the electric field among them. What is the charge on the posi..
The longest wavelength of light that can be absorbed by a particular harmonic oscillator is lumda = 1000 nm. What is the second longest wavelength that can be absorbed
A submarine is 2.95 multiply.gif 102 m horizontally from shore and 1.00 multiply.gif 102 m beneath the surface of the water. Find the height of the target above sea level
A charged sphere of mass 2.5x10^-5 kg and net charge of 6.0x10^-9 C hangs from a silk thread, what is the magnitude of the charge dentist on each plate
Suppose that a parallel-plate capacitor has circular plates with radius R = 40.0 mm and a plate separation of 4.0 mm. Suppose also that a sinusoidal potential difference with a maximum value of 340 V and a frequency of 120 Hz is applied across the..
A sphere of radius 10.0 cm floats in equilibrium partially submerged in water with its lowest point 5.00 cm below the water's surface. What is the buoyant force acting on the sphere
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