Questions
An old car battery that has an emf of e m f1 = 11.5 V and...

An old car battery that has an emf of e m f1 = 11.5 V and an internal resistance of 55.0 mΩ is connected to an R = 2.00 Ω resistor. In an attempt to recharge the battery, you connect a second battery that has an emf of e m f2 = 12.6 V and an internal resistance of 10.0 mΩ in parallel with the first battery and the resistor with a pair of jumper cables.

(a) Draw a diagram of the circuit.

(b) Find the current in each branch of the circuit. (Enter your answers from smallest to largest.)

(c) Find the power supplied by the second battery. Assume that the emfs and internal resistances of both batteries remain constant.


Discuss where that power is delivered. Assume that the emfs and internal resistances of both batteries remain constant.

In: Physics

Inside a boiler with a volume of 0.5 m, there is wet steam with a half...

Inside a boiler with a volume of 0.5 m, there is wet steam with a half volume of water at 140 kPa pressure. As a result of giving heat at constant pressure, after half of the water is vaporized, heat is continued until the pressure in constant volume is 1 MPa. Then, after giving heat at constant pressure, according to the temperature is 400 ° C; Show the temperature, pressure, volume, internal energy, enthalpy and dryness levels in a table during state changes.

b) Show the state changes in P-v and T-v diagram.
c) Find the work and heat transition after the state changes.
d) Find the required amount of fuel (natural gas, coal, fuel oil) for the heat given after the state changes by making the necessary assumptions.

In: Mechanical Engineering

Consider a firm which produces according to the following production function by using labor and capital:...

Consider a firm which produces according to the following production function by using labor and capital:

f(l,k) = k1/4 / 1/2

(a) Solve the cost minimization problem of this firm for the given wage rate, w and the rental rate of capital,v.

(b) Derive the cost function of the firm.

(c) Solve the profit maximization of the firm for a given price p, and derive the supply function.

(d) Derive the profit function of the firm.

(e) Suppose demand for this good is given by the following relation: p = 272−2q

Now, solve for the market equilibrium price level (where demand equals supply) if w = 1 and v = 2. (f) Decide whether the production function exhibits constant, increasing or decreasing returns to scale.

In: Economics

Batch and continuous biomass production Pseudomonas methylotrophus is used to produce single cell protein from methanol...

Batch and continuous biomass production Pseudomonas methylotrophus is used to produce single cell protein from methanol in a 1000-m pressure-cycle airlift fermenter. The biomass yield from substrate is 0.41 gg-, Ks is 0.7 mg 1", and the maximum specific growth rate is 0.44 h. The medium contains 4% (w/v) methanol. A substrate conversion of 98% is desirable. The reactor may be operated in either batch or continuous mode. If operated in batch, an inoculum of 0.01% (w/v) is used and the downtime between batches is 20 h. If continuous operations are used at steady state, a downtime of 25 days is expected per year. Neglecting maintenance requirements, compare the annual biomass production achieved using batch and continuous reactor

In: Other

question 1 (explain each code) If more information if needed please let me know a)t=linspace(0,1,1000); %...

question 1 (explain each code)

If more information if needed please let me know

a)t=linspace(0,1,1000); % Time t

Meaning:

b) for i=1:1000

xt(i)=v*cos(theta*pi/180)*t(i);

yt(i)=h+(v*sin(theta*pi/180)*t(i))-0.5*g*t(i)^2;

end

Meaning:

c) k = find(yt<0,1) % find index at which distance becomes

fprintf('Ball hits the ground at distance of %d meters',xt(k))

Meaning:

d) x=0:0.1:max(xt);

y=0;

plot(x,y*ones(size(x)),'--k')

Meaning:

In: Computer Science

Identify whether the following statement is true or false. Circle your answer choice. If the answer...

Identify whether the following statement is true or false. Circle your answer choice. If the answer is false, correct the statement to make it true.

True / False The solubility of silver hydroxide will increase in a basic solution.

True / False An indicator is a weak organic acid that changes color in solution depending on the protonation state

True / False Solubility product constants are large for insoluble salts.

True / False The equation that will correspond to the solubility of the salt, MX3, in water is Ksp = 27x4

True / False A Lewis acid is the proton donor.

True / False A strong oxidizing agent has a high reduction potential

True / False Lead will oxidize first in a mixture that contains lead (Ered = −0.13 V) and zinc (Ered = −0.76 V) metals.

In: Chemistry

An aqueous solution contains 0.100 M Ce3+; 1.00 × 10-1 M Ce4+; 1.00 × 10-4 M...

An aqueous solution contains 0.100 M Ce3+; 1.00 × 10-1 M Ce4+; 1.00 × 10-4 M Mn 2+; 0.100 M MnO4 - and 1.00 M HClO4 at 298 K.

You are given:

Ce4+ + e-  Ce3+ E° = 1.70 V

MnO4 - + 8H+ + 5e-  Mn2+ + 4H2O E° = 1.507 V 5.

(a) Write a balanced net reaction that can occur between the species in this solution and calculate its E° value.

(b) Calculate ΔG° and K for the reaction at 298 K.

(c) Calculate the total E for the net reaction in part (a) at 298 K.

(d) At what pH would the concentrations of Ce3+, Ce4+, Mn2+ and MnO4 - listed above be in equilibrium at 298 K?

In: Chemistry

6A) The aerodynamic drag of a car, Fdrag, is a function of surrounding air density ρ...

6A) The aerodynamic drag of a car, Fdrag, is a function of surrounding air density ρ and viscosity μ, velocity of the car V, and length of the car L. Using ρ, V, and L as repeating variables, express this relationship in dimensionless form.

6B) The aerodynamic drag of a new sports car is to be predicted at a speed of 100 km/hr at an air temperature of 25°C. Automotive engineers build a one fifth scale model of the car to test in a wind tunnel. It is winter, and the wind tunnel is located in an unheated building; the temperature of the wind tunnel air is only about 5°C. Determine how fast the engineers should run the wind tunnel to achieve similarity between the model and the prototype.

(sorry my teacher not provide diagram)

In: Mechanical Engineering

Section 1 How far from a -7.40 μC point charge must a 2.00 μC point charge...

Section 1

How far from a -7.40 μC point charge must a 2.00 μC point charge be placed in order for the electric potential energy of the pair of charges to be -0.500 J ? (Take the energy to be zero when the charges are infinitely far apart.)

d = ____ m   (The Answer Is Not 0.52 m)

Section 2

A point charge has a charge of 2.50×10−11 C .

Part A

At what distance from the point charge is the electric potential 84.0 V ? Take the potential to be zero at an infinite distance from the charge.

d = ___ m

Part B

At what distance from the point charge is the electric potential 25.0 V ? Take the potential to be zero at an infinite distance from the charge.

d = ___ m

In: Physics

please follow this pseudocode 1) Create class (any name you want)ex: aS 2) Declaring private integer...

please follow this pseudocode

1) Create class (any name you want)ex: aS
2) Declaring private integer array empty one ex: name arr[]
3) Declare private integer variables top, size and len (my example)

4) Declare constructor for the class with the same name and inside of that
public aS declare (parameter ex: int n)
  
5) Inside of that constructor method write command where:
size is equal to n
len is equal to zero
array (name) is equal to new integer[size]
and
top is equal minus 1

6)
Declare function to check if Stack is empty
In this function called public you should declare boolean (any name you want)
Which return top is equal minus 1

7)

Declare function to check if stack is full
Again another public boolean (any name you want)
Which return top is equal to size minus 1

8)
Declare function to get the size of the stack
This is public integer (any name you want)
Which return len
  
  
9)

Declare function to check the top element of the stack.
This is public integer peek
Which calls the function to see if is empty (we created above)
You can write underneath
throw new NoSuchElementException("Underflow Exception");
then
return name of your array[top]
  
10)

Declare function to add an element to the stack
Called public void push with parameters integer i
Condition:
if top + 1 is greater equal to size then you can write again
throw new NoSuchElementException("Underflow Exception");
if top + 1 is less equal to size
name of your array [increment top] equal to i

len increment

11)

Declare function to delete an element from the stack

This is public integer pop
Which calls the function to see if is empty (we created above)
You can write underneath
throw new NoSuchElementException("Underflow Exception");
then
increment len
then
return name of array[decrement top]
  
  
12)

Declare function to display the stack

This is public void display

system print out Stack: =
Condition
if len is equal to zero
then
system print out empty
return only
close the brackets
then
create for loop where int i is equal to top and i is greater equal to zero and i decrement
inside of that loop
system print name of array[i]+" "

13)

Scanner scan = new Scanner(System.in);

System.out.println("Enter Size of Stack ");

int n = scan.nextInt();

  
aS s = new aS(n);


char ch;

do{

System.out.println("\nStack Operations");

System.out.println("1. Push");

System.out.println("2. Pop");

System.out.println("3. Peek");

System.out.println("4. Check if is empty");

System.out.println("5. Check if is full");

System.out.println("6. Get the Size of Stack”);

int choice = scan.nextInt();

switch (choice)

In: Computer Science