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Please answer both parts A and B.
A) The decibel level of the noise from a jet aircraft is 130 dB when measured 16.8 m from the aircraft. How much sound power does the jet aircraft emit? Answer in units of W.
B) How much sound power would strike the eardrum of an airport worker 16.8 m from the aircraft? Assume the diameter of the worker’s eardrum is 1.7 × 10?2 m. Answer in units of W.
An archer pulls her bowstring back 0.388 m by exerting a force that increases uniformly from zero to 229 N. What is the equivalent spring constant of the bow
A generator has a square coil consisting of 580 turns. The coil rotates at 51 rad/s in a 0.28 T magnetic field. What is the length of one side of the coil
The work performed as a function of time for a process is given by W = at3 , where a = 2.4 J/s3. What is the instantaneous power output at t = 2.6 s
A charged particle is injected at 125 m/s into a 0.0743-T uniform magnetic magnetic field perpendicularly to the field. The diameter of its orbit is measured and found to be 0.0371 m. What is the charge-to-mass ratio of this particle?
What is the speed of a beam of electrons when the simultaneous influence of an electric field of 1.56×104V/m and a magnetic field of 4.62×10?3T, What is the period of the orbit
Starting from rest, a 12 cm diameter compact disk takes 2.4 s to reach its operating angular velocity of 2030 rpm. How much torque is applied to the disk
Consider a string with length 36 cm. The two ends are attached to the ceiling, separated by distance 30.0 cm. Determine the tension in the right segment of the string
A 0.50-?F and a 1.4-?F capacitor (C1 and C2, respectively) are connected in series to a20-V battery, lculate the potential difference across each capacitor? V1 and V2
On a hot summer day (30 degrees Celsius), a pesky little mosquito produced its warning sound near your ear. What is the frequency in Hertz of the sound wave
A 47.0 g golf ball is driven from the tee with an initial speed of 60.0 m/s and rises to a height of 25.2 m, Neglect air resistance and determine the kinetic energy of the ball at its highest point
Heat engines take input energy in the form of heat, use some of that energy to do work, and exhaust the remainder. Determine the magnitude of the heat the athlete gives off
Sarge quickly approximates the rope to be a string with a very high spring constant. What is the speed of wave propagation on the rope
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