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Commercial ultracentrifuges can rotate at rates of 100,000 rpm. As a consequence, they can create accelerations on the order of 800,000 g. ( A "g" represents an acceleration of 9.8 m/s^2).
Find the distance from the rotation axis of the sample chamber in such a device.
Calculate the speed of an object traveling under the given conditions.
Two point charges are separated by d= 10 cm and have charges of q1= +2(mu)C and q2= -2 (mu)C, respectively, What is the magnitude of the electric force between the two charges
Find the typical speed for a tsunami. (Note down that in the open ocean, tsunamis generally have amplitude of less than a meter, allowing them to pass ships unnoticed. As they approach shore, however, water depth decreases and the waves slow down. Th..
An isolated cylindrical capacitor consists of two concentric conducting cylinders of length L. The innder cylinder has a radius Ra and the outer cylinder has a radius Rb.
In very cold weather, a significant mechanism for heat loss by the human body is energy expended in warming the air taken into the lungs with each breath. How much heat is lost per hour if the respiration rate is 20 breaths per minute
When a rectangular metal tank is filled to the top with an unknown liquid, observer O, with eyes level with the top of the tank, can just see corner E. what is the index of refraction of the liquid
A child's water pistol shoots water through a 1.8 mm-diameter hole. If the pistol is fired horizontally 78 cm above the ground, the squirt hits the ground 1.8 m away. What is the volume flow rate through the squirt? Ignore air resistance.
A light bulb is rated at 60W, 120 V. how many electrons flow through the bulb per second and find the resistance of the bulb
A series RLC circuit has the following values: L =20mH, C=100 nF, R=20 Ohms, calculate the average power delivered to this RLC circuit
Suppose a car is traveling at +21.1 m/s, and the driver sees a traffic light turn red, What is the stopping distance of the car, as measured from the point where the driver first notices the red light
Male mosquitoes in the mood for mating find female mosquitoes of their own species by listening for the characteristic "buzzing" frequency of the female's wing beats.
Find the final velocity of the two balls if the ball with velocity v2i = ?21.4 cm/s has a mass equal to half that of the ball with initial velocity v1i = +25.8 cm/s
Each railroad car has a mass of 91000 kg. Seven coupled railroad car moving with a speed of 4.9 m/s collide, What is the speed of all ten cars after the collision
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