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A test tube 105 mm long is held rigidly at 29° with respect tothe vertical in a centrifuge with its top lip 6.0 cm from the central spin axis of the machine. If itrotates at 43000 revolutions per minute, what is the centripetal acceleration of a cell at the bottom of the tube?
A coating is applied to a lens to minimize reflections. The index of refraction of the coating is 1.66 and that of the lens is 1.56. what is the largest wavelength that is minimally reflected
A 10.0 kg mess kit sliding on a frictionless surface explodes into two 5 kg parts, one moving at 4.5 m/s, due north, What was the original speed of the mess kit
A 150 g aluminum cup contains 150 g of water and both are at 13 C. If you add 150 g of hot water at 90 C what is the final temperature at thermal equilibrium? How much hot water at 90 C needs to be added to achieve a final temperature of 44 C?
The masses of the javelin, discus, and shot are 0.80 kg, 2.0kg, and 7.2 kg, respectively, estimate the average force exerted on each object during the throw
When responding to sound, the human eardrum vibrates about its equilibrium position. Suppose an eardrum, is vibrating with an amplitude of 6.3X10^-7m, what is the maximum acceleration of the eardrum
You and Maria each own identical spaceships. As you fly past Maria, you measure her ship to be 96m long and your own ship to be 100 m long. How long does Maria measure your ship to be
A ball of mass .1kg is dropped from a height =11m above the surface of a triangular block of massM=1Kg. The triangular block is at rest on frictionless table and the kinetic energy is conserved during the collision. suppose the ball moves horiz..
A collimated beam of light whose wavelength is 495 nm falls on a screen containing a pair of long, Determine the spacing between the two third-order bright fringes
A magnifying glass of diameter 10.5 cm focuses sunlight into a spot of diameter 0.550 cm. What is the energy flux in the local spot
You are given a spherical mirror and wish to determine its properties. You place an object on its axis, 41.30 cm in front of it, Calculate the mirror's radius of curvature
A small ball is attached to one end of a spring that has an unstrained length of 0.152 m. By how much would the spring stretch if it were attached to the ceiling and the ball allowed to hang straight down, motionless
A weightlifter works out at the gym each day. Part of her routine is to lie on her back and lift a 41kg barbell straight up from chest height to full arm extension, a distance of 0.45m.
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