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A flask is filled with 1.58 L (L = liter) of a liquid at 100 °C. When the liquid is cooled to 13.3 °C, its volume is only 1.34 L, however. Neglect the contraction of the flask. What is the coefficient of volume expansion of the liquid?
A bucket filled with water has a mass of 48.00 kg and is attached to a rope that is wound around a 0.08 m radius cylinder. What torque does the bucket produce around the center of the cylinder.
Peter and Carter are dropping rocks into a stream from a bridge at a height of 28 m above the water below, As Meg emerges from the water below she is struck by both rocks. Calculate the speed of each rock at impact with Meg
An ideal heat-engine is to be used in an environment where the ambient temperature is 22.50 °C. What must be the minimum temperature of the hot heat reservoir in order to reach at least 46.40 percent efficiency with heat-engine? (Give the answer i..
The focal length of a relaxed human eye is approximately 1.71 cm, Calculate the focal length of the eye when we focus closely
Tension is maintained in a string. The observed wave speed is v=22.0 m/s when the suspended mass is m=3.00 kg. What is the mass per unit length of the string
In a local bar, a customer slides an empty beer mug down the counter for a refill, With what velocity did the mug leave the counter
An electron that has velocity vector v = (3.4 106 m/s) i hat + (2.9 106 m/s) j hat moves through a magnetic field vector B = (0.03 T) i hat - (0.15 T) j hat. Find the force on the electron
The two surfaces of a plastic converging lens have equal radii of curvature of 25.0cm, Calculate the index of refraction of the plastic
The inner and outer surfaces of a cell membrane carry a negative and positive charge, respectively. Because of these charges, a potential difference of about 0.077 V exists across the membrane. The thickness of the membrane is 8.1 x 10-9 m. What i..
A pump is required to lift a mass of 770 kg of water per minute from a well of depth 14.2 m and eject it with a speed of 17.5 m/s. How much kinetic energy does the pump give the ejected water
The plates of a parallel plate capacitor are separated by d = 2.8 cm. The potential of the negative plate is 0 V, and the potential halfway between the plates is +15 V. What is the electric field between plates (take the upward direction as the po..
A pair of slits, separated by 0.180 mm, is illuminated by light having a wavelength of ? = 612 nm. Express this path difference in terms of the wavelength
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