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An air cyclone is used to separate solid particles having different masses. The cyclone radius is 0.8 m and its rotational velocity is 100 rpm. Approximately, what is the centrifugal acceleration of the particles?
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Question: Rotational Kinetic Energy and Conservation of Energy Ranking Task The five objects of various masses, each denoted m, all have the same radius. They are all rolling at the same speed as they approach a curved i ...
Question: A student is working in an optics lab and has a light bulb which is 90 cm from a screen. She needs to make a real image of the bulb on the screen and she has a positive lens with a focal length of 12.5 cm. Find ...
Consider the following examples, which involve energy being transformed from one kind to another. Identify the initial input & final output forms of the energy in each case. Identifying intermediate energy conversions ma ...
Question: A parallel-plate air capacitor has a capacitance of 920 pF. The charge on each plate is 3.90 μC. A) What is the potential difference between the plates? Express your answer in kV. B) If the charge is kept cons ...
Question: A proton (with a rest mass m=1.67Ã-10âˆ'27kg) has a total energy that is 4.00 times its rest energy. a. What is the kinetic energy Ek of the proton? Express your answer in billions of electron volts to three si ...
Question: A parallel-plate capacitor is formed from two 1.5 cm -diameter electrodes spaced 2.1 mm apart. The electric field strength inside the capacitor is 1.0 Ã-10 6 N/C. What is the charge (in nC) on each electrode? ...
Speedy Mike, driving at 32.0 m/s enters a one-lane tunnel. He then observes a slow-moving van 160m ahead traveling at 5.50 m/s. Mike applies his brakes but can accelerate only at -1.50 m/s^2 because the road is wet. Will ...
Problem: The orbital speed of the Sun relative to the center of the Milky Way is about 250 km/s. By what fraction do the relativistic and Newtonian values differ for (a) the Sun's momentum and (b) the Sun's kinetic energ ...
Reactions with little or no activation energy are the least affected by temperature. Why? If the reaction had NO activation energy would it be affected at all by temperature?
The total length of the blood vessels in the body is roughly 500,000 km. Most of this length is due to the capillaries, which have an average diameter of 12 um. Estimate the total volume of blood in the human body by ass ...
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