Devon+C.


 * week 3 wiki question.**

You can find A and B by comparing the differences in value between B+A and A-B. This is easily done by finding the simplest values that would produce both J^ and I^ for the two quantities provided. To find the magnitudes we simply us the equation (A-squared + B-squared) = C-squared. Using the values for A and B found in part one and solving for C in the equation given produces the magnitude for A and B. The angles can be found by using the Tangent. Solving for theta and inputing the appropriate values produces the angles for A and B.


 * Note to Professor... I erased your previous message about how to use the actual "squared" number in my equations and didn't remember what you had typed....**

**Professor's Note :** Good answer for part i and ii. For part iii check my page. Don't delete my comments or the previous week's work. Just scroll down this page to type the new solutions each week.

**week 4 wiki question.**

1.)for this question the mass of the rock was not needed. Using the equations Vox=Vcos(theta) and the similar equation for Voy. we find the velocities in terms of X and Y. Using these we then solve the equation (X-Xo)=Vot + (1/2)(g)(t-squared) for t. Then using the value for t and Voy we can solve the same equation for (Y-Yo) giving the height of the building. g for (X-Xo) is equal to zero and for (Y=Yo) g=9.8m/(s-squared).

**Professor's Note : Good, check my page for more hints for tomorrow's Quiz [** to get the squared = go to Widget --> insert special characters - find squared]

Week 5 wiki question.

1.a.) To begin this question we must first find the value of time. This can be done by using the equation (Y-Yo)=(a)(t-squared) We can then input the values of time into the equation (X-Xo)=Voxt+(1/2)(a)(t-squared). Now solving for Vox we find horizontal velocity.  b.) Again we begin by solving for time, using the same equation (Y-Yo)=(a)(t-squared). Then we can simply input the values in to the second equation again and solve for (X-Xo) giving the distance traveled horizontally by the fish before it struck the ground/waters surface.

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No new work -- will visit again !