Questions asked by rihanna d.

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• What is the change in velocity of the international space station?
  
• What is the initial acceleration of the plane? What is the acceleration of the plane at the point of take-off?
  
• What is the comparison of the formula for the period of a pendulum to the equation of a line, y=mx + c?
  
• What is the recoil velocity of the gun?
  
• What is the comparison of the formula for the period of a pendulum to the equation of a line?
  
• How would you explain the collision theory?
  
• What is the electrolysis of concentrated potassium chloride in aqueous solutions?
  
• What is the depth to which the block is submerged?
  
• What is the relationship of the structure of a typical long bone to its functions?
  
• What is the name of the substance that influences trophic growth movement of roots and shoots?
  
• How and why does the volume and composition of urine changes?
  
• Briefly, explain the four main processes of the nitrogen cycle?
  
• How and why the volume and composition of urine changes, after strenuous exercise?
  
• Briefly, explain the effect of pregnancy on the menstrual cycle?
  
• Compare the structure of an insect pollinated flower and a wind pollinated flower?
  
• Briefly explain cross pollination and self-pollination, using appropriate illustrations?
  
• Explain the process of sexual reproduction in plants beginning at pollination (double fertilization)?
  
• List three agents of pollination and give examples of plant pollinated by the agent?
  
• Compare the structure of an insect pollinated flower and a wind pollinated flower?
  
• Using appropriate illustrations, explain the process of germination of a seed?
  
• What is the number of moles of iron atoms in 19.2 grams of iron (II) oxide?
  
• Prove that the first expression below is equal to the one after it?
  
• What are the angles that would satisfy the following trigonometric equation below, ranging from 0 degree to 360 degrees?
  
• Show how to prove that the first expression is identical to the second expression.?
  
• What are the coordinates of the point of intersection of the tangents when the equation of the tangent to the curve #y= x^2 -6x + 5# at the points, #x = 1# and #x = 5# is/are found?