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A damped harmonic oscillator consists of a block (m = 2.00 kg), a spring (k = 10.0 N/m), and a damping force the is linearly proportional to the velocity. Initially, it oscillates with an amplitude of 25.0 cm; because of damping, the amplitude falls to three-forths of this initial value at the completion of four oscillations. (a) What is the value of time constant ?? (b) How much energy has been "lost" during these four oscillations?
Two loudspeakers are placed next to each other and driven by the same source at a frequency of 570Hz. A listener is in front of the speakers and on the line separating them.
In a car lift, the output plunger has a radius of 9cm. the weight of the plunger and the car is 21600N. What is the gauge pressure of the hydraulic oil used in the operating lift.
A string 0.5 m long with mass density 0.0003 kg/m and is vibrating 200 cycles per second. What hanging mass would produce this tension
an object weighing 310 n in air is immersed in water after being tied to a string connected to a balance. the scale now
Shaving/makeup mirrors typically have one flat and one concave (magnifying) surface. compute the focal length of the mirror
question a 68.5 kg astronaut is doing a repair on the space station. she throws a 2.25 kg tool away from her at 3.20
A proton is moving parallel to a uniform electric field. The electric field accelerates the proton and increases its linear momentum to 3.00 10-23 kg·m/s from 1.30 10-23 kg·m/s in a time of 6.80 10-6 s. What is the magnitude of the electric field?
A 253 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal.
A 1.5--tall object is 18 in front of a concave mirror that has a 60 focal length. Calculate the position of the image. Calculate the height of the image
Suppose you are driving a car around in a circle of radius 182 ft, at a velocity which has the constant magnitude of 33 ft/s. What angle (in degrees) will the string make with the vertical
How much work is done by the gravitational force on the block during this displacement?How much work is done by the normal force
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. find the speed of a satellite in geosynchronous orbit
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