Questions
masses m1 and m2 are stacked together on a level surface that has friction. The blocks...

masses m1 and m2 are stacked together on a level surface that has friction. The blocks are accelerating together to the right. There is static friction between the two blocks. Analyze the forces on each block

In: Physics

1. Sketch the area under the standard normal curve over the indicated interval and find the...

1. Sketch the area under the standard normal curve over the indicated interval and find the specified area. (Round your answer to four decimal places.)

The area to the right of z = 1.50 is _________

2. Sketch the area under the standard normal curve over the indicated interval and find the specified area. (Round your answer to four decimal places.)

The area to the left of  z = −1.33  is ________

3. Sketch the area under the standard normal curve over the indicated interval and find the specified area. (Round your answer to four decimal places.)

The area between  z = −2.25 and z = 1.41 is ________

4.Sketch the area under the standard normal curve over the indicated interval and find the specified area. (Round your answer to four decimal places.)

The area between z = −2.48 and z = −1.80 is ________

5. Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.)

μ = 5.0; σ = 2.4.

P(3 ≤ x ≤ 6) = ________

6. Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.)

μ = 109; σ = 12

P(x ≥ 90) = ________

In: Math

What is the pH of a 203 mL sample of 3.601 M acetic acid (CH3COOH) (Ka...

What is the pH of a 203 mL sample of 3.601 M acetic acid (CH3COOH) (Ka = 1.8 x 10-5)?

In: Chemistry

An educational psychologist is examining response times to an on-screen stimulus. The researcher believes there might...

An educational psychologist is examining response times to an on-screen stimulus. The researcher believes there might be a weak effect from age, but expects a more pronounced effect for different color contrasts. She decides to examine a black on white (B/W) combination compared to 2 alternatives: red on white (R/W) and yellow on blue (Y/B). Here is the data for response times (in milliseconds):

Color Scheme
B/W R/W Y/B
Age 16–17 10
26
16
22
11
36
31
22
20
19
31
7
43
16
20
23
7
20
33
43
3
22
24
19
18–19 26
18
25
13
34
15
17
21
17
35
37
39
47
36
15
19
30
30
44
22
35
35
27
22
20–21 20
29
29
18
23
25
41
26
28
19
25
18
40
30
26
28
16
38
27
25
42
42
35
39

Using MS Excel, conduct a 2-way ANOVA with α=0.05α=0.05. Fill in the summary table:  P-values should be accurate to 4 decimal places and all other values accurate to 3 decimal places.

Source SS df MS F-ratio P-value Partial η2η2
Age (AA) 2
Color (BB) 2
Interaction (A×B)(A×B) 4
Error 63


In: Math

Hassan Limited uses the FIFO method in its process costing system. The data given relates to...

Hassan Limited uses the FIFO method in its process costing system. The data given relates to the most recent month of operations for one of the processing departments:
Opening units
400
Units started into production
3,000
Closing units
300
Material
Conversion
Percentage completion of opening inventory
80%
40%
Percentage completion of closing inventory
70%
60%
The cost of beginning inventory was Rs.10,040 of which Rs.7,120 was for materials and the remainder was for conversion cost. The costs added during the month amounted to Rs.132,730 of which Rs.76,048 was for materials and the remainder was for conversion cost.   
Required:   
1. Compute the equivalent units of material and of conversion in the ending inventory. (2 Mark)
2. Compute the equivalent units of material and of conversion that were required to complete the beginning inventory. (2 Mark)
3. Determine the number of units started and completed during the month. (1 Mark)
4. Compute the cost per equivalent unit for materials and for conversion and the total cost per equivalent unit. (1 Mark)
5. Determine the cost of units transferred out.
6. Determine the cost of ending inventory

In: Accounting

The table lists the sugar content of two types of apples from three different orchards. At...

The table lists the sugar content of two types of apples from three different orchards. At , test the claim that the sugar content of the apples and the orchard where they were grown are not related. Sugar Content Orchard 1 Orchard 2 Orchard 3 Apple Type 1 4 2 6 Apple Type 2 28 10 14

In: Math

Three charges are placed in the following locations: Q1 of -90.0µC at the origin; Q2 of...

Three charges are placed in the following locations: Q1 of -90.0µC at the origin; Q2 of +94.5µC at (0, 40.0 cm); and Q3 of +69.6 µC at (68.0 cm, 0).

a) Determine the total electric field at “P” located at (68.0 cm, 40.0 cm).

b) A fourth charge, q4 of +52.0 µC is placed at P. Find the total force on q4.

c) Determine the total potential V at P.

d) Does q4 have any electrical potential energy at P?

e) How much work is involved to move q4 from P to a new location “S” at (136 cm, 0)? Did the electric field do the work or was an outside agent involved to get q4 from P to S?

Please be as clear and detailed as possible, explaining each step if possible

In: Physics

Terrain navigation is a key component in the design of unmanned aerial vehicles (UAVs). Vehichles such...

Terrain navigation is a key component in the design of unmanned aerial vehicles (UAVs). Vehichles such as a robot or a car, can travel on land; and vehiches such as a drone or a plane can fly above the land. A UAV system contains an on board computer that has stored the terrain information for the area in which it is to be operated, Because it knows where it is at all times (often using a global positioning system (GPS) receiver), the vehicle can then select the best path to get to a designed spot. If the destination changes, the vehicle can refer to its internal maps and recompute the new path. The computer software that guides these vechicles must be tested over a variety of land formations and topologies. Elevvation information for large grids of land is available in computer databases. One way of measuring the "difficulty" of a lanad grid with respect to terrain navigation is to determine the number of peaks in the grid, where a peak is a point that has lower elevations all around it. For this problem, we want to determine whether the value in grid position [m] [n] is peak. Assume that the values in the four positions shown are adjacent to grid position [m] [n]

grid [m-1] [n]
grid [m][n-1] grid [m][n]    grid [m][n+1]
grid [m+1] [n]

Write a program in C PROGRAMMING that reads elevation data from a data file named grid1. txt. (this file you have to create and name it as grid 1.txt.) data as shown below which represent elevation for a grid that has 6 points along the side and seven points along the top ( the peaks have been highlighted and underlined):

5039 5127 5238 5259 5248 5310 5299

5150 5392 5410 5401 5352 5820 5321

5290   5560    5490 5421 5530 5831    5210

5110 5429 5430 5411 5459 5630 5319

4920 5129 4921   5821 4722 4921 5129

5023 5129 4822 4872 4794 4862 4245

Then prints the number of peaks and their locations. Assume that the first line of the data file contains the number of rows and the number of columns for the grid of information. These values are then followed by the elevation values, in row order. The maximum size of the grid is 25 rows by 25 columns.

Hints:

  1. Define and print the number of peaks and their locations in an elevation grid.
  2. input is a file containing the elevation data and the output is a listing of the location of the peaks.
  3. to specify the location of the peaks, you need to assign an addressing scheme to the data because you are going to implement this solution in c. Therefore, choose its 2D array subscripting notation.
  4. assume the top left corner is position [0][0], the row numbers increase by 1 as move down the page and the column numbers increase by 1 as move to the right.
  5. These peaks then occur at position[2][1], [2][5], and [4][3].
  6. To determine the peaks, compare a potential peak with its four neighbouring points.
  7. if all four neighboring points are less that the potential peak, then the potential peak is a real peak.
  8. the points on the edges of the array or grid cannot be potential peaks because do not have elevation information on all four sides of the points.

In: Computer Science

Identify three different schools of Buddhism. How are these schools similar in their beliefs and practices?...

Identify three different schools of Buddhism. How are these schools similar in their beliefs and practices? How do they differ? Cite supporting information from the topic materials.

In: Psychology

def sequentialSearch(theList, item):     #**** to be changed:     # counts the iterations of the while...

def sequentialSearch(theList, item):
    #**** to be changed:
    # counts the iterations of the while loop and returns this value
    found = False
    index = 0
    while index < len(theList) and not found:
        if theList[index] == item:
            found = True
        index = index + 1  
    return found                  

def binarySearch(theList, item):
    #**** to be changed:
    # counts the iterations of the while loop and returns this value
    startIndex = 0
    endIndex = len(theList)- 1
    found = False
    while startIndex <= endIndex and not found:
        middleIndex = (startIndex + endIndex)//2
        if item == theList[middleIndex]:  
            found = True
        elif item > theList[middleIndex]:
            startIndex = middleIndex + 1
        else:                             
            endIndex = middleIndex - 1
    return found   

# program for testing the search algorithms
dataSet = [-200, -190, -180, -170, -160, -110, -105, -74, -30, -17, -12, -1, 4, 5, 13, 26, 37, 42, 62, 96, 100, 110, 120,130]

print("\nSuccessful sequential search - all elements of the data set")  
totalComparisons = 0
#**** to be completed:
#     list traversal on the dataSet list:
#     for each item: perform a sequential search and
#                    display the number of comparisons,
#     count the total number of comparisons
print("Average number of comparisons: "+str(totalComparisons/len(dataSet)))
  
print("\nUn-successful sequential search")
target = 196                 # target not in the dataSet
comparisons = 0 #**** to be changed: perform a sequential search for target
print ("target " + str(target), "\t comparisons used " + str(comparisons))

print("\nSuccessful binary search - all elements of the data set")
totalComparisons = 0
#**** to be completed:
#     list traversal on the dataSet list:
#     for each item: perform a binary search and
#                    display the number of comparisons,
#     count the total number of comparisons
print("Average number of comparisons: "+str(totalComparisons/len(dataSet)))

print("\nUn-successful binary search")
target = 196                 # target not in the dataSet
comparisons = 0 #**** to be changed: perform a binary search for target
print ("target " + str(target), "\t comparisons used " + str(comparisons))

make some change to the python according to the comment line and complete the following question.

Sequential Search Algorithm

Binary Search Algorithm

Successful searches

Successful searches

Average number of comparisons

Average number of comparisons

Maximum number of comparisons

found at index _____________

Maximum number of comparisons

found at index _____________

Minimum number of comparisons

found at index____________

Minimum number of comparisons

found at index____________

Un-Successful search

Un-Successful search

Number of comparisons

Number of comparisons

  1. What is the size n of the data set used?
  2. What is the worst case for sequential search?
  3. What is the best case for sequential search?
  4. Is the worst case for sequential search O(n)?
  1. What is the best case for binary search?
  1. What is the worst case for binary search?
  1. Is the worst case for binary search O(log n)?

In: Computer Science

1. Using the standard enthalpies of formation, what is the standard enthalpy of reaction? CO(g) +...

1. Using the standard enthalpies of formation, what is the standard enthalpy of reaction?

CO(g) + H2O(g) --> CO2(g) + H2(g)

2. Calculate the standard enthalpy change for the following reaction at 25 �C.

HCl(g) + NaOH(s) --> NaCl(s) + H2O(l)

3. For a particular isomer of C8H18, the following reaction produces 5113.3 kJ of heat per mole of C8H18(g) consumed, under standard conditions.

C8H18(g) + 25/2O2(g) --> 8CO2(g) + 9H2O(g) (deltarxn = -5113.3 kJ)

What is the standard enthalpy of formation of this isomer of C8H18(g)?

4. Many power plants produce energy by burning carbon-based fuels, which also produces carbon dioxide. Carbon dioxide is a greenhouse gas, so over-production can have negative effects on the environment. Use enthalpy of formation data to calculate the number of moles of CO2(g) produced per megajoule of heat released from the combustion of each fuel under standard conditions (1 atm and 25 �C).

coal, C(s, graphite):

natural gas, CH4(g):

propane, C3H8(g):

octane, C8H18(l) (?Hf� = �250.1 kJ �mol-1):

In: Chemistry

A 460 turn solenoid, 25 cm long, has a diameter of 2.2 cm. A short 2.6...

A 460 turn solenoid, 25 cm long, has a diameter of 2.2 cm. A short 2.6 cm diameter 12 turn coil is wound around the solenoid at its midpoint. What rate of change of current in the solenoid, will cause a 220

In: Physics

write more specific examples of the ways Harriet Jacobs demonstrated the resistance of enslaved people.

write more specific examples of the ways Harriet Jacobs demonstrated the resistance of enslaved people.

In: Operations Management

Do the type-D and JK flip flops respond to the same clock edge? Explain how toggle...

Do the type-D and JK flip flops respond to the same clock edge?

Explain how toggle mode is the same as division by two.

What is the difference between a synchronous input (D, J, or K) and an asynchronous input (PR or CLR)?

*please no handwritten answers

In: Computer Science

A freight company uses a compressed spring to shoot 1.90kg packages up a 1.00-m -high frictionless...

A freight company uses a compressed spring to shoot 1.90kg packages up a

1.00-m -high frictionless ramp into a truck, as the figure(Figure 1) shows. The spring constant is 330N/m and the spring is compressed 35.0cm .

What is the speed of the package when it reaches the truck?
Express your answer with the appropriate units.
v =
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Part B
A careless worker spills his soda on the ramp. This creates a 50.0-cm-long sticky spot with a coefficient of kinetic friction 0.300. Will the next package make it into the truck?
A careless worker spills his soda on the ramp. This creates a 50.0--long sticky spot with a coefficient of kinetic friction 0.300. Will the next package make it into the truck?
Yes
No

In: Physics