Answers edited by Ashley H

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• A hockey puck is hit on a frozen lake and starts moving with a speed of 12.0 m/s. Exactly 5.0 s later, its speed is 6.0 m/s. What is the puck’s average acceleration, and what is the coefficient of kinetic friction between puck and ice?
  
• Which is correct ?
  
• Show It With Explanation ?
  
• Which part of brain is responsible for superstition?
  
• What will be the anser?
  
• Between the configurations 4p1 and 4p2,which one is more stable?
  
• What is the graph obtained when a body is thrown in upward direction with velocity on y-axis and position of body on x-axis? Also,can you please explain how it is obtained?
  
• What is the value of x in the equation (a/b)^(2x-3) = (b^3/a^3)^(x+4)?
  
• What sound waves can humans hear?
  
• Dimensional analysis doubt!!!??
  
• Is static friction a reaction force?
  
• Answer It With explanation ?
  
• Can someone solve question iv? (its the top one)
  
• Determine the potential difference VA–VB between points A and B of circuit shown in fig. under what condition is it equal to zero?
  
• A cell has an e.m.f of 1.08 v and an internal resistor of 0.5 ohm. when it is connected in series with resistor of R , the potential difference between the terminals fell to 0.96 v . what was the value of R?
  
• Two point charges with charges of #8.4xx10^-6# are brought close to each other. (a). Sketch this and show the direction of the electric force? (b) If the point charge on the left feels a force of #0.66N,# calculate the distance, #r,# between them?