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Q. An electric field of 150000 N/C points due west at a certain spot. What is the magnitude of the force that acts on a charge of -7.6C at this spot?
Q. Human blood contains plasma, platelets, and blood cells. To separate the plasma from other components, centrifugation is used. Effective centrifugation requires subjecting blood to an acceleration of 2000g or more. In this situation, assume that blood is contained in test tubes that are 15 cm long and are full of blood.(a) What is the distance of a sample of blood from the rotation axis of a centrifuge rotating at 3500 rpm, if it has an acceleration of 2000g? (b) If the blood at the center of the tubes revolves around the rotation axis at the radius calculated in Part (a), calculate the accelerations experienced by the blood at each end of the test tube. Express all accelerations as multiples of g.
Why does the base of a shuttle cock always lead in motion when hit with a racket. what is grocery carts final speed.
The drawing shows an edge-on view of two planar surfaces that intersect and are mutually perpendicular. Surface 1 has an area of 2.2 m2, while surface 2 has an area of 3.5 m2.
Heather and Jerry are standing on a bridge 56 above a river. Heather throws a rock straight down with a speed of 15. Jerry, at accurately the same instant of time, throws a rock straight up with the equal speed. Overlook air resistance.
A gymnast of mass 55.0 hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value for the acceleration of gravity.
A 100 percent efficient electric motor is lifting a 15N weight at 25cm/s. If the motor is connected to a 7V battery, how much current does it draw.
Calculate the radius of the path, direction of the force experienced by the electron and the path of the electron through the magnetic field.
The hydraulic cylinder is subjected to 3 forces. An 8kN force is exerted on cylinder at B that is parallel to the cylinder and points from B towards C. The link AC exerts the force at C that is parallel to the line from A to C. The link CD exerts ..
The motion of peg P is constrained through the lemniscate curved slot in OB and by the slotted arm OA.
A basketball player makes a jump shot. The 0.600 kg ball is released at a height of 2.00 m above the floor with a speed of 7.20 m/s. The ball goes through the net 3.10 m above the floor at a speed of 4.20 m/s Find the work done on the ball by air ..
Calculate charges, current, potential difference.
Coherent light that contains two wavelengths, 660 nm and 470 nm, passes by two narrow slits with a separation of 0.280 mm and an interference pattern is observed on a screen which is a distance 4.40 m from the slits.
The small spherical planet called "Glob" has a mass of 6.54×10^18 kg and a radius of 6.29×10^4 m. An astronaut on surface of Glob throws a rock straight up. The rock reaches a maximum height of 2.00×103 m, above the surface of planet, before it falls..
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