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A full-page open letter with more than 700 signatures was recently released in a uni- versity campus newspaper. The letter according to www.texasenvironment.org protested the sale of the single-use, disposable plastic water bottles "shaped" like a university "symbol." The bottles are marketed to students and in local grocery stores and according to the article this does not align with the school's own sustainability program. The article reveals that with a global movement to ban plastic water bottles from college campuses, the university's decision has left students at the back of the environmental movement. What are the advantages and disadvantages of plastic bottles? What steps or procedures could be taken to minimize environmental impact of "single" use bottles? How would an engineer deal differently than a businessperson with the sale of disposable plastic water bottles?
A concave spherical mirror with a focal length of 15cm forms an upright image that is 5 times larger than the original object
The initial state of a quantity of monatomic ideal gas is P=1atm V=1liter and T=373K. Calculate the total work done on or by the gas.
The Promises and Perils of Nuclear Power
Explain how horizontal motioncan be uniform while vertical motion is accelerated.How will projectile motion be affected when dragdue to air resistance is taken into consideration?
assume you are 90 cm from a plane mirror. What area of the mirror is used to reflect the rays entering one eye from a point on the tip of your nose if your pupil diameter is 5.5 mm.
A car is hauling a 89-kg trailer, to whichit is connected by a spring. By how much does the spring stretch
A mountain climber stands at the top of a 52.8m cliff hanging over a calm pool of wat. Find the velocity of the first stone at the instant both stones hit the water
A grinding wheel, which is a disk of uniform thickness, has a diameter of 0.016 m and a mass of 2kg. How large a torque is needed to accelerate it
A 0.23 kg billiard ball that is moving at 2.6 m/s strikes the bumper of a pool table and bounces straight back at 2.3 m/s. The collision lasts 0.01 s. What percent of the original energy is left after the collision?
Water is being pumped through a horizontal pipe that is 37.8 m long and 14.5 cm in diameter. what gauge pressure must the pump provide to give the same volume flow rate as for the first pipe
You have the task of measuring an unknown temperature using a constant-volume gas thermometer. hat is that temperature on the Celsius scale to the nearest degree
Two displacement vectors each have magnitude 26 km. One is directed 45° below the +x-axis; the other is directed 45° above the +x-axis. What is the vector sum of these two displacements
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