If you take two steps of different sizes, can you end up at your starting point? More generally, can two vectors with different magnitudes ever add to zero? Can three or more?
Use graphical methods to solve these problems. You may assume data taken from graphs is accurate to three digits.
Find the following for path A in
[link] : (a) the total distance traveled, and (b) the magnitude and direction of the displacement from start to finish.
Find the following for path B in
[link] : (a) the total distance traveled, and (b) the magnitude and direction of the displacement from start to finish.
Suppose you walk 18.0 m straight west and then 25.0 m straight north. How far are you from your starting point, and what is the compass direction of a line connecting your starting point to your final position? (If you represent the two legs of the walk as vector displacements
and
, as in
[link] , then this problem asks you to find their sum
.)
Suppose you first walk 12.0 m in a direction
west of north and then 20.0 m in a direction
south of west. How far are you from your starting point, and what is the compass direction of a line connecting your starting point to your final position? (If you represent the two legs of the walk as vector displacements
and
, as in
[link] , then this problem finds their sum
.)
Repeat the problem above, but reverse the order of the two legs of the walk; show that you get the same final result. That is, you first walk leg
, which is 20.0 m in a direction exactly
south of west, and then leg
, which is 12.0 m in a direction exactly
west of north. (This problem shows that
.)
(a) Repeat the problem two problems prior, but for the second leg you walk 20.0 m in a direction
north of east (which is equivalent to subtracting
from
—that is, to finding
). (b) Repeat the problem two problems prior, but now you first walk 20.0 m in a direction
south of west and then 12.0 m in a direction
east of south (which is equivalent to subtracting
from
—that is, to finding
). Show that this is the case.
Show that the
order of addition of three vectors does not affect their sum. Show this property by choosing any three vectors
,
, and
, all having different lengths and directions. Find the sum
then find their sum when added in a different order and show the result is the same. (There are five other orders in which
,
, and
can be added; choose only one.)
The lymphatic system plays several crucial roles in the human body, functioning as a key component of the immune system and contributing to the maintenance of fluid balance. Its main functions include:
1. Immune Response: The lymphatic system produces and transports lymphocytes, which are a type of
asegid
to transport fluids fats proteins and lymphocytes to the blood stream as lymph
Anatomy is the study of the structure of the body, while physiology is the study of the function of the body. Anatomy looks at the body's organs and systems, while physiology looks at how those organs and systems work together to keep the body functioning.
Enzymes are proteins that help speed up chemical reactions in our bodies. Enzymes are essential for digestion, liver function and much more. Too much or too little of a certain enzyme can cause health problems
Kamara
yes
Prince
how does the stomach protect itself from the damaging effects of HCl
the normal temperature is 37°c or 98.6 °Fahrenheit is important for maintaining the homeostasis in the body
the body regular this temperature through the process called thermoregulation which involves brain skin muscle and other organ working together to maintain stable internal temperature