Questions asked by Taylor

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• What is the formula for Magnesium Triiodine? I think it is Mg(I3)2 but wanting to confirm.
  
• How many moles are in 360 g of glucose, C6H12O6? How would I be able to find the answer to this problem? The molar mass of the compound is 180.01 g/mol.
  
• How many atoms or molecules are present in 1.0 mol of Au? How am I able to find the answer?
  
• A plane could fly at an average speed of 694 m/s. Calculate how long it would take the plane to fly around the world (which is #4.00 xx 10^7\ "m"#)?
  
• A person walks at a speed of 2.00 m/s for 10.0s and then walks at a speed of 1.50 m/s for 8.00 seconds. What is the average speed? I'm using the formula Average Speed=Total Distance/Total Time and I'm not getting the correct answer.
  
• How am I able to solve this? A boat travels at a velocity of 8.00 m/s (N) for 14.0s. What is the displacement of the boat?
  
• How can I calculate the displacement of multiple variables? For example what is the displacement of, 10m in 5.0s, then 16m south in 5.0s, then 14m north in 4.0s? In case it is needed, the average speed is 2.9 m/s for that problem.
  
• How do you calculate displacement? Example, a student walked 2.0 m (E) then 5.0 m (W), what is the total displacement of the student?
  
• What is an example of the first and second law of thermodynamics?
  
• How do solstice's and equinox's affect solar energy reaching the Earth's surface?
  
• How is thermal energy transferred through the atmosphere and hydrosphere? What effects does this transfer have on climate?
  
• A construction worker drops a 2.00 kg hammer from a roof. When the hammer is 50.0 m above the ground, it has a total mechanical energy of 1.88 X 10^3 J. What is the kinetic energy?
  
• Using the graph-slope value, calculate the radius. How would I manipulate an equation to solve for the radius when I know the slope? My slope is 0.257 1/m. My Y axis is acceleration (m/s^2) and my X axis is linearized velocity (m^2/s^2).
  
• A ball is dropped from a height of 12m. On every successive bounce, the ball bounces to a height that is 2/3 of the previous height. Find the total vertical distance, that the ball has travelled when it hits the ground for the 8th time?
  
• How to solve #2x-1/3 = x^2+(2x)/5# using the quadratic formula?
  
• How to solve 2x-1/3 = x^2+2x/5 using the quadratic formula?
  
• How do you calculate frequency from a given velocity value?
  
• A grass field is inhabited by mice and coyotes. The mice eat the grass and serve as food for the coyotes. A disease of unknown origin kills all the coyotes. What will happen to the ecosystem?
  
• If the graph of y=3x^2+2x is vertically stretched by a factor of 9 and horizontally stretched by a factor of 7/2, determine the equation that describes the transformed graph?
  
• If log5 x - log5(x - 2) = 3, then the value of x, to the nearest hundredth, is?
  
• How would a test charge placed in a non-uniform electric field behave?
  
• The probability of two carrier parents having a child with sickle cell anemia is? a)0.25 b)0.50 c)0.75 d)1.0
  
• Ascorbic acid (C6H8O6) has how many acidic protons that it will lose when reacting with NaOH?
  
• 4 shoppers are asked to state their preference for 2 brands Coke or Pepsi Let A denote the event that exactly two of the four individuals will prefer Coke. List the elements in A and find P(A)=?
  
• Prove using the formal definition of a derivative that (f-g)'(x)= f'(x)-g'(x)?
  
• Two events A and B are investigated: P(A)=0.35, P(B)=0.72, the percent chance that at least one of event A or B occur is 90%; What is the probability that only one of the events happens is =?
  
• A fair die is rolled n=113 times, each time observing the number of dots appearing on the topside of the die. The number of dots showing on the topside of toss i is a random variable represented by Xi. What is the mean and standard deviation of Xi?
  
• A one-year insurance policy pays $10822 if the policyholder dies within one year. The premium paid by the policyholder is $351, and the probability of death within that year is 0.006. What is the expected gain of the policy for the insurance company?