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The ultrasonic transducer used in medical ultrasoundimaging, is a very thin disk ( m =0.10g) driven back and forth in SHM at 1.0 MHz by an electromagnetic coil. The maximum restoring force that can be applied to the disk without breaking it is 40,000 N. What is the maximum oscillation amplitude that won't rupture the disk? What is the disk's maximum speed at this amplitude?
What should the charge (sign and magnitude) of a particle of mass 1.47 be for it to remain stationary when placed in a downward-directed electric field of magnitude 610.
How much sound power will strike the eardrum of an airport worker 15.3 m from the aircraft? (Use 1.9 10-2 m as the diameter of the ear.)
A pipe open only at one end has a fundamental frequency of 214 Hz. A second pipe, initially identical to first pipe, is shortened by cutting off the portion of the open end. Now, as both pipes vibrate at their fundamental frequencies, the beat freque..
Compute the horizontal distance the ball
how many days would be required to move one of the charges.
An infinitely long line of charge has linear charge density 4.00 10-12 C/m. A proton (mass 1.67 10-27 kg, charge +1.60 10-19 C) is 17.0 cm from the line and moving straight toward the line at 3000m/s.
A boy shoots a BB gun horizontally at a target 15 m away. The gun is aimed directly at the center of the target, but the small metal BB hits 56 cm lower. avoid any air resistance, what was the initial speed of the BB.
What is the volume of the bubble when it reaches just below the surface of the lake, where temperature is 20°C.
A spherical Balloon is inflated at the rate of 144pie cubic inches per minute (in^3/min). How fast is the radius of the balloon changing when the radius is 4 inches? Recall the formula for volume of sphere: V(4/3) pieR^3?
A cyclist is traveling at an initial speed of 10.0m/s. She accelerated at a rate of 0.500m/s^2. What is her final speed after 9.
You throw a ball vertically upward from the edge of the roof of the Bisdorf building with a speed 15.0 m/s. Find a) the position and velocity of the ball 1.00 s after leaving your hand.
What apparent free-fall acceleration is experienced by the managers remaining on the rim assume that the average mass for each inhabitant is 65kg.
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