Finding the speed of the block
A 260 g block on a 54cm -long string swings in a circle on a horizontal, frictionless table at 90 rpm. What is the speed of the block? What is the tension in the string?
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Which interest group in the United States is more likely to depend on demonstrations and other nontraditional strategies of influence?
A positive cell potential indicated that the chemical reaction in the cell can be used to generate electrical work. Can this reaction be used to generate work?
A paperweight, when weighed in air, has a weight of W = 7.4 N. When completely immersed in water, however, it has a weight of Win water = 4.4 N. Find the volume of the paperweight.
Some people argue that diplomacy and peacemaking efforts do not depend on good will, i.e., that hard-headed Realpolitik efforts are also essential to these activities. Do you agree or disagree? Why?
A 14.045 g aliquot of this solution is then titrated with 0.1043 M HCl. It required 29.18 mL of the HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous waste.
What actions would you recommend to Carlos Fernandez to help Grupo Modelo sustain or improve its competitive position, especially its international operations, and its long-term financial performance?
A chemical reaction takes place in a container of cross-sectional area 50.0 cm2. As a result of the reaction, a piston is pushed out through 15 cm against an external pressure of 121 kPa. Calculate the work done by the system.
Three equal point charges, each with charge 1.30 mu C, are placed at the vertices of an equilateral triangle whose sides are of length 0.600 m. What is the electric potential energy U of the system? (Take as zero the potential energy of the three
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nvironmental Impact Assessment: Understanding the full extent of ecological damage to marine and coastal ecosystems.
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The IPAT model calculates the environmental impact of human activities based on ____. a. population size, agriculture, and trade practices
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