You are hungry and decide to go to your favorite neighborhood fast-food restaurant. you leave your apartment and take the elevator 10 flights down (each flight is 3.0 m) and then go 15 m south to the apartment exit. you then proceed 0.2 km east, turn north, and go 0.1 km to the entrance of the restaurant.

a. determine the displacement from your apartment to the restaurant. use unit vector notation for your answer, being sure to make clear your choice of coordinates. take the beginning of the journey as the origin, with north being the y-direction, east the x-direction, and the z-axis vertical.
b. how far did you travel along the path you took from your apartment to the restaurant?
c. what is the magnitude of the displacement you calculated in part a?

e) none of the above answers are correct

  1.the balanced   chemical equation is as below

cu +   2 ag(no)₃ → cu(no₃)₂   +2 ag

2.the   much silver   produced   is   50.9 g

step 1: find the   moles of cu

moles =   mass÷   molar mass

  from periodic table the molar mass of cu = 63.5 g/mol

moles is therefore = 15.00 g÷ 63.5 g/mol = 0.236   moles

step 2: use the mole ratio to determine the   moles of ag

from equation above   cu: ag   is 1: 2

therefore the moles of ag   =0.236   moles   x 2/1 =0.472   moles

step 3: find the mass   of ag

mass = moles x molar mass

from periodic table   the molar mass of ag =107.87 g/mol

mass   = 0.472   moles x 107.87 g/mol = 50.9 g

3.   the   much   silver   collected worth is   1.797 oz

  convert   50.9 g   to oz

that is   1 gram = 0.0353 oz

          50.9 grams =?   oz

by cross multiplication

={(50.9 grams x 0.0353 oz) / 1   gram}   =1.797 oz

be subject to a force andchange its motion