Determine the percent composition of air in the lungs from the following composition in partial pressures: PN2=565mmHg, PO2=108mmHg, PCO2=37mmHg, PH2O=50mmHg; all at 37∘C and 1atm pressure.

A % N2

B % O2

C %CO2

D % H2O

An object (A) of mass m A = 28.0 kg is moving in a direction that makes angle of 50° south of west with a speed v A = 4.90 m/s, while object (B) of mass m B = 18.0 kg is moving due south with a speed v B = 7.85 m/s. The two objects collide and stick together in a completely inelastic collision. Find the magnitude of the final velocity of the two-object system after the collision.

Two common ways for a chemist to increase the yield of a reactiom are described below. Explain why they increase the yield.
a. Add more of one of the reactants
b. Remove one of the products as it is being made.

Yahtzee Simulation. Must be written in Python

These are the specific instructions:

"Write a function called Yahtzee_Simulation() that receives no parameters. The function will simulate rolling 5 dice at least one million times. It will keep track of the number of times the computer rolls a Yahtzee. The function will return the number of wins divided by the number of tries. There are no print() statements in this function.

Write a function called main() that receives no parameters. This function calls the Yahtzee_Simulation() function 10 times and prints the result of each simulation. Finally, print the mathematical result, which can be calculated with the following code: print(6/(6**5))"

This was also given as a hint:

The simulation runs 1000000 times
0.000774
0.000788
0.000729
0.000761
0.000777
0.000777
0.000777
0.000758
0.00077
0.000768
The mathematical solution is:  0.0007716049382716048

I've been struggling on how to do this, I think seeing an example of what it does and how it's made will help me when making my own, Thank you!

League Competition: Suppose the demand for soccer teams in the US is given by: P(Q) = 320−10Q where Q is the total number of soccer teams and Pi s the marginal willingness to pay for the Qth team (in millions). The cost to start a new team is c= 20

Two Leagues: First, suppose are two leagues (Major League Soccer and the National Soccer League) that are choosing how many teams to have, so that Q=qm+qn.

a Find the equilibrium number of teams for the MLS.

b Find the equilibrium number of teams for the NSL.

c What are profits for the MLS?

d What are profits for the NSL?

e What is consumer surplus?

Merger: Now assume the leagues merge to form one league (Premier USA). After the merger demand increases to:P(Q) = 360−10Q

a What is total surplus (consumer surplus and profit)?

b Is consumer surplus more or less than the pre-merger surplus?

two happy astronaunts, each having a mass of 75 kg are connected by a rod length 10.0 and a mass 140 kg. The system is isolated in space, orbiting the center of the rod at an angular speed of 0.50 rad/s counterclockwise. Treat the astronaunts as point masses. The moment of inertia of a rod is I=(1/12)ML^2

what is the initial moment of intertia of the total rod-and-astronaunts system?

By pullinh on the rod, the astronaunts shorten the distance between them to 5.0 m. What is the final angular velocity of the rod-and-astronauts system in rad/s?

QUESTION 1

Compute the typical thermal energy of a water molecule at normal conditions: (k_B T) and compare it to the answer to an earlier problem, where you computed the work needed to lift a molecule by a certain distance. Based on this comparison, the thickness of the Earth's atmosphere is about

QUESTION 2

How much energy is released after an Argon atom moving with speed 3.00 km/sec hits a brick wall and get adsorbed?

QUESTION 3

In the previous problem, what is the value of the collision energy in terms of k_BT, assuming the temperature was 95 ^oF at the time?

QUESTION 4

In equilibrium, the number of molecules moving in one direction is equal, on average, to the number of molecules moving in the opposite direction.

True

False

QUESTION 5

In equilibrium, all directions in space are equivalent in that the speeds of molecules moving in any given direction have the same distribution.

True

False

i used this coding for select image from database but the image did not retrieve from database and did not display  

what is the issue ?

include "connect.php";
                               $sql= "select fileTmpPath from picture where ID='3'";
                                   $result = mysqli_query($conn,$sql);
                                   $pic= mysqli_fetch_array($result);
                                  
echo " <img src=" .$pic["fileTmpPath"]."' />";
                                   ?>

a) Determine the rate law.

b) Calculate the rate constant. Specify units.

c) Calculate the rate of reaction for experiment 5.

d) How is the rate of appearance of D related to the disappearance of B?

e) In experiment 3, what is the rate of disappearance of B?

Provide examples of best practice and poor practice from your own experience of website design and justify your thinking with evidence.

Exercise 1.40
You are given two vectors A⃗ =−3.00ι^+6.00j^and B⃗ =4.00ι^+2.00j^. Let the counterclockwise angles be positive.
Part A
What angle does A⃗  make with the +x-axis?

θ1=
∘

SubmitMy AnswersGive Up
Part B
What angle does B⃗  make with the +x-axis?

θ2=
∘

SubmitMy AnswersGive Up
Part C
Vector C⃗  is the sum of A⃗  and B⃗ , so C⃗ =A⃗ +B⃗ . What angle does C⃗ make with the +x-axis?

θ3=

Q1; 0.4 mL of serum were added to 1.6 mL diluent and mixed. 0.4 mL of this mixture were then added to 1.6 mL of diluent and mixed. This process was repeated several times. What is the df in the fourth tube?

Q2: Give three examples of qualitative tests and three examples of semiquantitative tests

Q3:There are six domains of health care quality; mention any three domains

Q4;What is false positive results and false negative results? Which of these values affect sensitivity and specificity of the method

a. Assume that all of the pendulum’s mass M is contained in the “bob” at the end of the pendulum rod. Write Newton’s 2nd Law for the force balance along the circular arc traced out by the pendulum bob as it swings back and forth. [Hint: You can relate the position of the pendulum bob along its arc to the angle ! formed by the pendulum rod and the vertical line when the pendulum bob is at the “base” of the arc. It may help to draw this.]

b. Using the “small angle approximation” sin(theta) ≈ theta(t) and assuming that the pendulum bob is released from rest at an angle theta(zero), show that theta(zero) = (theta(zero))cos (omega t) solves the force balance equation in (a) for a particular value of omega. What value is it?

c.  The period of the pendulum corresponds to the time it takes the pendulum to oscillate through one cycle, i.e., from its initial position and back. Use the result in b to find the period. You should find the period to be a numerical factor times our estimate of the period from dimensional considerations.

I need a lesson plan for preschool children age 4-5 about how to count numbers until the 20.

If the topic is numbering, I need descriptions. Farming Theorist & Concept. For example one of Piaget's theory with one source and what is the Outcomes and I need an assessment plan.

Table 1                              
                              
   DATA               CALCULATIONS          
L (mm)   Rrm (Ω)   ΔL (mm)   Rhot (Ω)   Trm (C°)   Thot (C°)   ΔT (C°)  
Copper 699   112 0.79 9.2 22.5   84.75 62.25  
Steel 699   112 0.64 9.437 22.5   84 61.5  
Aluminum 699   112 1.07 9.767 22.5   83 60.5  
                              
1. Use the Conversion Table at the end of the 'Instructions' section, or the one on the top of the expansion base, to convert your thermistor resistance measurements, Rrm and Rhot, into temperature measurements, Trm and Thot. Record your results in the table.                                
                              
                              
     2. Calculate ΔT = Thot – Trm. Record the result in the table.                              
                              
3. Using the equation ΔL = αL ΔT, calculate α for copper, steel, and aluminum.                              
                              
αCu =   1.81556E-05               αsteel =   1.48877E-05      
                              
αAl =   2.53018E-05                          

1. Look up the accepted values for the linear expansion coefficient for copper, steel, and aluminum. Compare these values with your experimental values. What is the percentage difference in each case? Is your experimental error consistently high or low?                                
                              
   2. On the basis of your answers in question 1, speculate on the possible sources of error in your experiment. How might you improve the accuracy of the experiment?                               
                              
                              

       3. From your result, can you calculate the coefficients of volume expansion for copper, aluminum, and steel? (i.e. ΔV = αvol V ΔT)