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Question:
A centrifuge rotor is accelerating for 55 seconds from rest to 35,500 revolutions per minute.
(a) What is the average angular acceleration?
(b) through how many revolutions has the centrifuge rotor turned during its acceleration period, assuming constant angular acceleration?
an electron travels at a speed of 2.0 x 104 ms through a uniform magnetic field of strength 1.2 x 10-3 t. what is the
A bullet of mass 0.014 kg and initial speed 440 m/s penetrates an initially stationary wooden block with a of mass 0.44 kg and lodges in it. How much mechanical energy was lost during the collision
A steel wire of length 5 meter and radius 0.3 millimeter is knotted to another steel wire of length 5 meter and radius 0.1 millimeter. Find how long does a transverse wave pulse take to travel the distance of 10 meter from the beginning of the firs..
You are standing at rest with respect to the earth holding a lance which you measure as 10 meters long. Which lance hits the other person first
In order to determine the mass of a molecule, first an electron is removed from the molecule. The resulting ion is accelerated from rest by an electric potential difference 2.7 104 V, Find the mass of the ion
A musician plays a string on a guitar that has a fundamental frequency of 330.0 Hz. The string is 65.2 cm long and has a mass of 0.268 g. At what speed do the waves travel on the string
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A car, initially traveling with a uniform velocity, accelerates at a rate of 1.0 m/s^2 for a period of 12 seconds. If the car traveled 190 m during this 12 second period, what was the velocity of the car when it started to accelerate?
a 1.0-cm-tall object is 60 cm in front of a diverging lens that has a -30 cm focal length. calculate the image position
A series RLC circuit is driven by a voltage of amplitude 5V. If w(omega)= 1000s^-1, L = 5H, C=3muF and R =2komega. Find the amplitude of the current. Find the amplitude of the voltages across the capacitor, inductor, and resistor Find the phase diffe..
A child is moving at constant velocity carries a 2N ice cream cone 1m across a level surface. WHat is the net work done on the ice cream cone
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