Vectors and Unit Conversion Assignment | Essay Help Services

its an physics assignment related to vectors and unit conversion ,there are 2 ques that you need to answer in the attached file you just need to show the method how to do it there are hints given below for both ques make sure for question 1 u need to know significant figures and show proper cancellation of units and for 2 make sure to make the diagram of triangle ,both answers are given at the end to double check

Instructions
• Your solutions must be hand written.
• Scan or photograph your handwritten solutions, and upload them as a single pdf file to D2L. Choose a good
name for your file (eg YourName_PhysA1.pdf). The pdf has to be of adequate quality: write large enough,
neatly enough, and use a pen or thick enough pencil.
• Do not crowd your work. Generally, you should start each question on a new page. But this first
assignment is short, so you can put both questions on one page.
• You must use good technique. For example, a unit conversion question that does not have every single unit
is no good (worth zero points even if you have the right answer!). A bunch of numbers without a picture,
symbols, and symbolic solution, is not enough. At first, I’ll try to remind you of the necessary steps for a clear
complete solution. But soon, you will have to know without reminders what is needed.
• Questions? Please ask!
Questions
1 33mm of rain fell overnight. How much water fell on one acre of land in liters? Use only the following
conversions in your solution: 1 acre = 4840 square yards, 1 yard = 3ft, 12inches = 1 ft, 2.54cm = 1in, 1 litre =
103 cm3. (See reminders and hints below.)
2 You are out for a walk (being sure to keep 2m from everyone else). You walk 67m at 25º N of E. Then
you turn and walk 15m due west.
a Where are you from your starting point?
b How would you get back to your starting point i in the shortest way possible and ii by walking directly N/S
then E/W. (See reminders and hints below.)
Reminders about steps for adequate technique (and hints):
1 For a good enough solution remember to: Assign appropriate symbols to numerical values (with units).
Draw a very simple picture of the situation (here, a sketch of a box of height h = 33m and base of area A =
1acre), labelled clearly with your defined symbols. This is a unit conversion question, so start with an
appropriate symbol for the desired quantity, write the appropriate equation (eg V = h A) in symbols, then
substitute in the numerical values provided (with units), then multiply by the appropriate conversion factors
(with units) until you arrive at the requested units. Clearly show that the units work out using clear
cancellation strikes. Because 33mm is a measured quantity with only 2sf, you should round your final answer
to 2sf (calculate it to 5 accurate digits first though). Finally, try to think of something you can compare your
calculated numerical value to to see if it’s reasonable. Or maybe, as a check, try a “back-of-the-envelope”
calculation that you can do in your head to see if your numerical value is the right order of magnitude.
Your solution will take up much less space than these reminders!
2 Draw a big enough picture (at least 10cm horizontally). Hint: you should see two right-angled triangles in
your picture. Use both triangles. And no fancy trigonometric identities are necessary; just good old sine,
cosine, tangent definitions and Pythagorus. In fact, because you are going to be finding lengths of triangles,
it’s probably clearest to do the calculations right on your well labelled neat and big enough picture which you
have cleverly centred mid page so there is room around it on all sides for your clear calculations.
Answers 1 V=1.3×105 L , 2a 53.8m away directed 31.8º N of E = 45.7m E and 28.3m N.
Remember that it is not enough to just get the right answer!
You must use good technique; your work must be clear, easy to follow, and in roughly standard form.
Any numerical dimensional quantity must have units. Quote answers to 3 accurate