Questions
Rigid bar ABC shown in Figure P1.30 is supported by a pin at bracket A and by tie rod (1).

Rigid bar ABC shown in Figure P1.30 is supported by a pin at bracket A and by tie rod (1). Tie rod (1) has a diameter of 5 mm, and it is supported by double-shear pin connections at B and D. The pin at bracket A is a single-shear connection. All pins are 7 mm in diameter. Assume a = 600 mm, b = 300 mm, h = 450 mm, P = 900 N, and θ = 55°. Determine the following:

(a) the normal stress in rod (1)


 

(b) the shear stress in pin B


 

(c) the shear stress in pin A

FIGURE P1.30

In: Mechanical Engineering

Below are the transactions and adjustments that occurred during the first year of operations at Kissick Co

Below are the transactions and adjustments that occurred during the first year of operations at Kissick Co

 

  1. Issued 197,000 shares of $5-par-value common stock for $985,000 in cash.

  2. Borrowed $520,000 from Oglesby National Bank and signed a 11% note due in three years.

  3. Incurred and paid $390,000 in salaries for the year.

  4. Purchased $690,000 of merchandise inventory on account during the year.

  5. Sold inventory costing $590,000 for a total of $920,000, all on credit.

  6. Paid rent of $220,000 on the sales facilities during the first 11 months of the year.

  7. Purchased $180,000 of store equipment, paying $54,000 in cash and agreeing to pay the difference within 90 days.

  8. Paid the entire $126,000 owed for store equipment and $630,000 of the amount due to suppliers for credit purchases previously recorded.

  9. Incurred and paid utilities expense of $37,000 during the year.

  10. Collected $825,000 in cash from customers during the year for credit sales previously recorded.

  11. At year-end, accrued $57,200 of interest on the note due to Oglesby National Bank.

  12. At year-end, accrued $20,000 of past-due December rent on the sales facilities.

 

Required:

 

 

 

a. Prepare an income statement (ignoring income taxes) for Kissick Co.'s first year of operations and a balance sheet as of the end of the year. (Hint: You may find it helpful to prepare T-accounts for each account affected by the transactions.)

In: Accounting

Determine the point estimate of the population proportion, the margin of error for the following confidence interval

Determine the point estimate of the population proportion, the margin of error for the following confidence interval, and the number of individuals in the sample with the specified characteristic, x, for the sample size provided.

Lower bound=0.226,upper bound=0.604,n=1200

The point estimate of the population is? round to the nearest thousandth as needed.

the margin error is? round to the nearest thousandth as needed.

the number of individuals in the sample with the specified characteristic is? round to the nearest integer as needed.

In: Statistics and Probability

To test the Ho: u = 40 versus Hi: u < 40, a random sample of size n = 26 is obtained from a population that is known to be normally distributed.

To test the Ho: u = 40 versus Hi: u < 40, a random sample of size n = 26 is obtained from a population that is known to be normally distributed.  Complete (a) through (d).

if x = 36.8 and s = 13.9, compute the test statistic.

to = ??? (round to three decimals as needed)

a) ta = ???  (round to three decimal places.  Use a comma to separate answers)

b)  If the researcher decides to test this hypothesis at the a = 0.1 level of significance, determine the critical value(s).  Although technology or a t-distribution table can be sued to find critical value, in this problem use the t-distribution table given.

c) Draw a t-distribution that depicts the critical region.  

d) Will the researcher reject the null hypothesis?

Yes because the test statistic falls in the critical region

Yes because the test statistic does not fall in the critical region

No because the test statistic does not fall in the critical region

 

In: Statistics and Probability

Construct the indicated confidence interval for the difference between the two population means.

Construct the indicated confidence interval for the difference between the two population means. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Independent samples from two different populations yield the following data. The sample size is 478 for both samples. Find the \(85 \%\) confidence interval for \(\mu_{1}-\mu_{2}\).

\(\bar{x}_{1}=958, \bar{x}_{2}=157, s_{1}=77, s_{2}=88\)

A. \(800<\mu_{1}-\mu_{2}<802\)

B. \(791<\mu_{1}-\mu_{2}<811\)

C. \(793<\mu_{1}-\mu_{2}<809\)

D. \(781<\mu_{1}-\mu_{2}<821\)

In: Statistics and Probability

A nurse measured the blood pressure of each person who visited her clinic.

A nurse measured the blood pressure of each person who visited her clinic. Following is a relative-frequency histogram for the systolic blood pressure readings for those people aged between 25 and 40. The blood pressure readings were given to the nearest whole number. Approximately what percentage of the people aged 25-40 had a systolic blood pressure reading between 110 and 119 inclusive?

In: Statistics and Probability

Match the following properties of liquids to what they indicate about the relative strength of the intermolecular forces in that liquid.

Match the following properties of liquids to what they indicate about the relative strength of the intermolecular forces in that liquid.

Strong intermolecular forces: Weak intermolecular forces:
-high boiling point
-high vapor pressure
-high surface tension
-high viscosity

In: Chemistry

Rank each satellite based on the net force acting on it. Rank from largest to smallest.

Rank each satellite based on the net force acting on it. Rank from largest to smallest.

  • 1. m= 100kg, L = 2500m, v= 160 m/s
  • 2. m= 300kg L = 10000m, v= 80 m/s
  • 3. m = 400kg L = 2500m, v= 80 m/s
  • 4. m = 200kg L = 5000m, v= 160 m/s
  • 5. m = 800kg L = 10000m, v= 40 m/s
  • 6. m = 200kg L = 5000m, v= 120 m/s

In: Physics

Complete the following program skeleton. When finished, the program will ask the user for a length (in inches), convert that value to centimeters, and display the result. You are to write the function convert.

Complete the following program skeleton. When finished, the program will ask the user for a length (in inches), convert that value to centimeters, and display the result. You are to write the function convert. (Note: 1 inch = 2.54 cm. Do not modify function main.)

#include #include using namespace std;// Write your function prototype here.int main(){ double measurement; cout ≪ "Enter a length in inches, and I will convert\n"; cout ≪ "it to centimeters: "; cin ≫ measurement; convert(&measurement); cout ≪ fixed ≪ setprecision(4); cout ≪ "Value in centimeters: " ≪ measurement ≪ endl; return 0;}

//

// Write the function convert here.

//

In: Computer Science

Write a function that accepts an int array and the array's size as arguments.

Write a function that accepts an int array and the array's size as arguments. The function should create a copy of the array, except that the element values should be reversed int the copy. The function should return a pointer to the new array. Demonstrate the function in a complete program.

 

In: Computer Science

The figure below shows a cross section across a diameter of a long cylindrical conductor

The figure below shows a cross section across a diameter of a long cylindrical conductor of radius a = 2.00 cm carrying uniform current 159 A. What is the magnitude of the current's magnetic field at the following radial distances?

(a) 0
_____ T

(b) 1.20 cm
_____ T

(c) 2.00 cm (wire's surface)
______ T

(d) 3.90 cm
______ T

 

In: Physics

The two 10-cm-long parallel wires in the figure are separated by 5.0 mm.

The two 10-cm-long parallel wires in the figure are separated by 5.0 mm. For what value of the resistor R will the force between the two wires be 1.1×10−4 N ?

In: Physics

What visible wavelengths of light are strongly reflected from a 390-nm-thick soap bubble?

A soap bubble is essentially a thin film of water surrounded by air. The colors you see in soap bubbles are produced by interference. What visible wavelengths of light are strongly reflected from a 390-nm-thick soap bubble? What color would such a soap bubble appear to be?

In: Physics

The jet transport B is flying north with a velocity

The jet transport \(B\) is flying north with a velocity \(v_{\mathrm{B}}=600 \mathrm{~km} / \mathrm{h}\) when a smaller aircraft \(A\) passes underneath the transport headed in the \(60^{\circ}\) direction shown. To passengers in \(B\), however, \(A\) appears to be flying sideways and moving east. Determine the actual velocity of \(A\) and the velocity which \(A\) appears to have relative to \(B\).

In: Mechanical Engineering

A cylindrical beaker of height 0.100 m and negligible weight is filled to the brim with a fluid of density ρ = 890 kg/m3 . When the beaker is placed on a scale, its weight is measured to be 1.00 N

A cylindrical beaker of height 0.100 m and negligible weight is filled to the brim with a fluid of density ρ = 890 kg/m3 . When the beaker is placed on a scale, its weight is measured to be 1.00 N .(Figure 1)

A ball of density ρb = 5000 kg/m3 and volume V = 60.0 cm3 is then submerged in the fluid so that some of the fluid spills over the side of the beaker. The ball is held in place by a stiff rod of negligible volume and weight. Throughout the problem, assume the acceleration due to gravity is g = 9.81 m/s2 .

Part A

What is the weight Wb of the ball?
Express your answer numerically in newtons.

Part B

What is the reading W2 of the scale when the ball is held in this submerged position? Assume that none of the water that spills over stays on the scale.
Calculate your answer from the quantities given in the problem and express it numerically in newtons.

Part C

What is the force Fr applied to the ball by the rod? Take upward forces to be positive (e.g., if the force on the ball is downward, your answer should be negative).
Express your answer numerically in newtons.

Part D

What weight W3 does the scale now show?
Express your answer numerically in newtons.

 

In: Physics