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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.
A physics professor demonstrates the Doppler effect by tying a 610 Hz sound generator to a 0.9 m long rope, What are the highest and lowest frequencies heard by a student
Consider the system of capacitors shown in the figure below (C1= 2.00 uF, C2= 3.00 uF). Find the total energy stored by the group
A proposed ocean thermal-energy conversion (OTEC) system is a heat engine that would operate between warm water (17°C) at the ocean's surface, What is the maximum possible efficiency of the system
An ideal gas is contained in a cylinder with a movable piston. The gas is then heated through an isobaric process. how much work is done by the gas
When operated on a household 110.0-V line, typical hair dryers draw about 1550 W of power, What is the current in the dryer and What is the resistance of the dryer
A rifle has a mass of 4.5kg and it fires a bullet of mass 10.0g at a muzzle speed of 820 m/s. What is the recoil speed of the rifle
A car is travelling at a constant speed of 31.1 m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has a constant acceleration. What acceleration mu..
The average density of the planet Saturn is 688 kg/m3. The acceleration of gravity on its surface is 11.20 m/s2. Calculate the average radius of Saturn
find out the initial velocity of the ball. How fast will the electron be moving when it is very far away.
A 4.00-g bullet is moving horizontally with a velocity of +355 m/s, where + sign indicates that it is moving to the right. The bullet is approching two blocks resting on a horzizonta frictionless surface.
You land on a new planet with radius 5000km. You measure the freefall acceleration due to gravity to be 8.5m/s^2 at the surface
A 0.527-kg mass is attached to a horizontal spring with k = 108 N/m. The mass slides across a frictionless surface. Find the mechanical energy of the system.
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