Answers created by Peter A.

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• A rocket with a satellite accelerates upward from the earth's surface. At 1.15 sec. after liftoff, the rocket clears the top of its launch platform, 63 m above the ground. What is the magnitude of the average velocity of the rocket for the 4.75 s flight?
  
• Question #2871a
  
• What is the relationship between linear speed and angular speed?
  
• Question #0b63a
  
• How does accuracy differ from precision in scientific measurements?
  
• If i run down some stairs and stop, what happens to your kinetic energy and your initial gravitational potential energy?
  
• How can Le Chatelier's principle help maximize the yield of reactions?
  
• What is the mass of a gas that occupies 48.9 liters, has a pressure of 724 torr, a temperature of 25°,C and a molecular weight of 345 g?
  
• Based on the postulates of the kinetic molecular theory, what conditions of pressure and temperature would cause a real gas to best simulate an ideal gas?
  
• Why do electric lines of force never cross?
  
• How does the ideal gas law differ from the combined gas law?
  
• Question #a2018
  
• Question #c6aa7
  
• How does the law of conservation of energy apply to chemical changes?
  
• How does torque affect angular momentum?