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Manufacturers of headache remedies routinely claim that their own brands are more potent pain relievers than the competing brands. Their way of making the comparison is to compare the number of molecules in the standard dosage. Tylenol uses 325 mg of acetaminophen (C8H9NO2) as the standard dose, while Advil uses 2.00 x 102 mg of ibuprofen (C13H18O2). Find the number of molecules of pain reliever in the standard doses of
(a) Tylenol and
(b) Advil.
Derive the speed of a satellite in a circular orbit of radius R about planet of mass M, show the connection between v and T (orbital period)
A cue ball, which has a mass of 0.17 kg, collides head-on with a stationary 8-ball, what was the velocity of the cue ball before and after collision
A 1000-kg car is moving at 30 m/s around a horizontal curve whose radius is 100m. What is the magnitude of the frictional force
A ball is thrown from the roof of a 22m tall building with an initial velocity of magnitude 12 m/s and directed 53.1 (o) above the horizontal. What is the magnitude of the ball's velocity just before it hit the ground
A heat engine operates between a high-temperature reservoir at 610K and a low-temperature reservoir at 320K. What is the net change in entropy as a result of this cycle?
At high noon, the Sun delivers 1.10-kW to each square meter of a blacktop road. If the hot asphalt loses energy only by radiation, what is its equilibrium temperature?
If a force of 300N is exerted upon a 60 kg mass for 3 seconds, how much impulse does the mass experience
A Carnot engine has 40 g of Helium gas as its working substance. Calculate the work generated by this engine during one cycle
In an ultra-low-temperature experiment, a collection of atoms enter a special state called a Bose-Einstein condensate, What is the speed of light in this condensate
A Carnot engine absorbs 950J of heat each cycle and provides 340J of work. How much heat is rejected each cycle
An unknown capacitor is charged by a 100-V source through a 1 M? resistor. determine the capacitance of the capacitor
What is the capacitance of a pair of circular plates with a radius of 5.0cm separated by 2.9mm of mica? The dielectric constant of mica is 7
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