Organisms in a Food Chain
food chain, a linear depiction of energy flow, with each organism
feeding on and deriving energy from the preceding organism.
Each feeding level in the chain is called a trophic level
Food chains typically consist of organisms
Part B: Sin le Vector Ma nitude 50 R of 40 and an Ry of 30.
15 Hit the Clear All button to erase the screen Next, create a vector with an x
Fill in the chart for this vector here: mum
#13. How do
16. . Compare the chart values of this vector to those of t
I Part C - Several Vectors
K 24. Create 5 vectors, as shown at right. The length of each of the horizontal
vectors should be 10, and the length of the vertical vectors should be 15.
' . . sin
26. O A useful way to keep track of vector sums Is to create
For each of these articles, give your best judgment as to which category (Research, Review,
Popular Press, Commercial/Advocacy) it falls into, and why. Some articles may fall into more
than one category.
Copy this homework into your own file, add your ans
Principles of Chemistry 2: Titration of Bleach
Name: Nafula Namuninia
Lab Section:1152-40
Date: January 25, 2017
Use excess significant figures at all times unless asked to round.
Molar mass NaClO = 74.441713 g/mol
Trial 1
Trial 2
mass of KIO3 (g)
0.5098g
NafulaNamuniniaChem115240February1,2017
Vial #
Mass of Vial
with cap(g)
Mass of vial
with cap
& KNO3 (g)
Mass of vial
with cap
& KNO3
& H2O (g)
Calculated
Mass of KNO3
(g)
Calculated
Mass of H2O
(g)
Solubility
/
(g)KNO3 100g H2O
Temperature.
Trial #1
(C)
Nafula Namuninia
When you exercise, your breathing rate, blood pressure, and heart rate
increase. Is this a violation of homeostasis? Explain
The increase in your bodies blood pressure, heart rate, and breathing rate is a
direct result of homeostasis work
Nafula Namuninia
When you exercise, your breathing rate, blood pressure, and heart rate
increase. Is this a violation of homeostasis? Explain
The increase in your bodies blood pressure, heart rate, and breathing rate is a
direct result of homeostasis work
I.
II.
III.
Vectors and 2D Motion
Trigonometry review
a. Three trig functions: sine, cosine, tangent
a.i.
a.ii.
a.iii.
a.iv. If one is interested in , one must use an inverse trig
function like , also known as arc-sine
b. The quadrants of the xy-plane det
Work and Energy
Energy (E
An objects energy is something that quantifies its ability to move or potential to
move. Also defined as the ability to do work.
1.i. Units=Joule (J=N*m=kg*m2/s2), erg (=g*cm2/s2), foot-pound
(ftlb=slug*ft2/s2), and calorie (cal
Rotational Motion
I. Rotational kinematicsthe variables/quantities we learned about before
position, velocity, acceleration, are all linear quantities. There are
angular analogues for all of them.
a. Angular position( )Angular position, which is often sim
Momentum, Collisions and Center of Mass
I. Momentum and Impulse
a. Momentum (p)The tendency of an object to maintain its motion.
a.i. Momentum, like energy, is a conserved quantity
a.ii. Momentum can only be changed by the application of a force,
just as
Chapter 2: Linear Motion
a. Position/Displacement/Distance(?) (x, y, s)
a.i. Displacement of an object from an identified origin
a.ii. In 1D, can be positive or negative, and is the distance from the origin
along a line.
a.iii. The difference of positions
Forces and Newtons Laws
I. Newtons First Law: An object in motion tends to stay in motion unless
acted upon by an outside force. An object at rest tends to stay at rest
unless acted upon by an outside force.
a. Objects resist changes to their motion.
a.i.
Chapter 9Elastic Properties of Matter: Stress and Strain
I. Stress and strainMost of the objects we have discussed so far have been
considered to be rigid, as in they do not change shape when responding to
forces, instead they move or rotate. Real objects
Name, Date, Period
C Virtual Lab Vectors & Vector Opera 1' n [Will WV) V
Setup
1. Make sure your calculator is set to degrees and not radians. Sign out a laptop and power cord.
2. Do a Google search for PhET and then go to the PhET website.
3. From the m