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An ultracentrifuge is a rotating device that can produce acceleration up to 106 g. If the distance from the center of the centrifuge out to the end of the rotating arm (where the sample goes) is 20 cm, what is the rotation speed inrevolutions per minute required to give your sample an accelerationof 106 g?
a fly beats its wings at a frequency of 1200 Hz. if the expansion and contraction of the wing muscles of the fly exhibits simple harmonic motion, what is the time period of a single beat of the flys wings
A student sits on a swivel seat. Initially the student is at rest, holding a spinning bicycle wheel that has an angular velocity of 12.6 rad/s, Find the student's final angular velocity
What is the weight of the staging. A highway curve with radius 800 is to be banked so that a car traveling 56.0 will not skid sideways even in the absence of friction. At what angle must the curve be banked.
A uniform 250 ladder rests against a perfectly smooth wall, making a 40.0 angle with the wall. What is the friction force on the ladder at the floor
A violinist is tuning her instrument to concert A (440 Hz). She plays the note while listening to an electronically generated tone of exactly that frequency and hears a beat of frequency 5.00 Hz, what was the frequency of her violin when she heard ..
An AC adapter for a laptop computer unit uses a transformer to reduce the line voltage of 110 V (rms) to a voltage of 18.5 V. What is the rms current delivered to the transformer
Light enters a polarizing apparatus at an intensity of 100 units, Determine the angle of rotation theta
A 3.60 {rm m}-long, 430 {rm kg} steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66 {rm kg} construction worker stands at the far end of the beam.
if the cd rotates clockwise lets take clockwise rotation as positive at 500 revolutions per minute while the last song
q1. a plane is flying horizontally with speed 198 ms at a height 6640 m above the ground when a package is dropped from
A type of transmission line for electromagnetic waves consists of two parallel conducting plates (assumed infinite in width) separated by a distance a. Each plate carries the same uniform surface current density of 16.0 A/m, but the currents run i..
A team of dogs drags a 130 kg sled 1.91 km over a horizontal surface at a constant speed. Find the work done by the dogs
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