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A flask is filled with 1.51 L (L = liter) of a liquid at 96.8 °C. When the liquid is cooled to 17.5 °C, its volume is only 1.37 L, however. Neglect the contraction of the flask. What is the coefficient of volume expansion of the liquid?
A playground merry-go-round of radius R = 1.80 m has a moment of inertia I = 255 kg · m2 and is rotating at 9.0 rev/min about a frictionless vertical axle. What is the new angular speed of the merry-go-round
An ideal gas at 12.4 °C and a pressure of 1.41 x 105 Pa occupies a volume of 2.85 m3. How many moles of gas are present
A civil engineer wishes to plan a curved exit ramp for a highway in a way that a car will not have to rely on friction to round the curve without skidding. In the other words, a car moving at the designated speed can negotiate the curve even while th..
A 60·kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 340·N. What is the final speed of the crate
You are driving along a highway at 25.5 m/s when you hear a siren. You look in the rear-view mirror and see a police car approaching you from behind with a constant speed, How fast was the police car moving
Two identical spheres are made of conducting material. Initially, sphere 1 has a net charge of 33Q and sphere 2 has a net charge of -18 Q
A 4.47 m long pole stands vertically in a lake having a depth of 2.22 m. while the sun is 62.6 degrees above the horizon, find the length of the pole's shadow on the bottom of the lake.
A gas containing 9 moles is compressed adiabatically from an initial temperature of 288 K to a final temperature of 463 K, what is the work done by the piston
Two uniform infinite sheets of electric charge densities 41.0 C/m2 and -41.0 C/m2 intersect at a right angle
A power supply maintains a potential difference of 86.1 V across a 1070-? resistor. What is the current in the resistor
A certain superconducting magnet in the form of a solenoid of length 1.10 m can generate a magnetic field of 11.0 T in its core when its coils carry a current of 85 A. Find the number of turns in the solenoid
The cubit is an ancient unit. Its length equals six palms. (A palm varies from 2.50 to 3.50 inches depending on the individual.) We are told Noah's ark was 300 cubits long, 50 cubits wide and 30 cubits high.
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