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When responding to sound, the human eardrum vibrates about its equilibrium position. Assume an eardrum is vibrating with amplitude of 4.2 x 10-7 meter and a maximum speed of 2.8 x 10-3 m/s.
(a) Determine the frequency of the eardrum vibrations?
(b) Obtain what is the maximum acceleration of the eardrum?
Bob takes off for a planet that is 100 LY away moving in a rocket ship at .9999c relative to Earth when he is 10 years old. How old is Bob (in years) when he arrives
A 3700-lb automobile (m = 1600 kg) starts from rest on a level road and gains a speed of 45 mi/h (= 72 km/h) in 33 s. What is the average net power delivered to the car during the 33-s interval
find the magnetic field at the center of a set of helmholtz coils each with radius r0.1m and each carrying a total
A 3.00-kg crate slides down a ramp. The ramp is 1.00 m in length and inclined at an angle of 30.0o. The crate starts from rest at the top, What is the speed of the crate at the bottom of this new ramp
A drinking straw 20 cm long and 3 mm in diameter stands vertically in a cup of juice 8.0cm in diameter. A section of straw 6.5cm long extends above the juice. A child sucks on the straw, and the level of juice in the glass begins dropping at 0.23c..
A charging bull elephant with a mass of 5240-kg comes directly toward you with a speed of 4.55m/s. You toss a 0.150-kg rubber ball at the elephant with a speed of 7.81m/s (a) When the ball bounces back toward you, what is its speed ?
An old Chrysler with mass 2000 kilogram is moving along a straight stretch of road at 88 km/h. Find how fast is the center of mass of the two cars moving
A proton is projected perpendicularly into a magnetic field that has a magnitude of 0.25 T. The field is then adjusted so that an electron will follow a circular path of the same radius when it is projected perpendicularly into the field with the sam..
An object with a mass of m = 5.3 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.255 m and mass of M = 3.00 kg, Determine the speed with which the object hits the floor
A worker pushes a sled with a force of 50 N over a level distance of 7.0 m. what net work is done on the sled
A 100 W lightbulb produces 4.0 W of visible light. What is the light intensity on a wall 3.0 m away from the lightbulb
A 0.5 kilogram rubber ball is dropped from a height of 3.0 meter above a hard concrete ground. Find the change in momentum of the ball during the interaction
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