Question

In: Mechanical Engineering

In a controlled experiment, it takes 3700 J to melt the amount of metal that is...

In a controlled experiment, it takes 3700 J to melt the amount of metal that is in a weld bead with a cross-sectional area of 6.0 mm2 that is 150.0 mm long. (a) Using Table 28.2, what is the most likely metal? (b) If the heat transfer factor is 0.85 and the melting factor is 0.55 for a welding process, how much heat must be generated at the welding source to accomplish the weld?

Solutions

Expert Solution

samet mamat answered 2 years ago
Next > < Previous

Related Solutions

An experiment was run to examine the amount of time it takes to boil a given...
An experiment was run to examine the amount of time it takes to boil a given amount of water on the four different burners of her stove, and with 0, 2, 4, or 6 teaspoons of water. The numbers in parentheses are run order. The results of the design are given below. Use a=0.05 unless otherwise specified Salt (teaspoons) Burner 0 2 4 6 Right Back 7(7) 4(13) 7(24) 5(15) 8(21) 7(25) 7(34) 7(33) 7(30) 7(26) 7(41) 7(37) Right Front...
The number of bacteria after ? hours in a controlled laboratory experiment is ? = ?(?)....
The number of bacteria after ? hours in a controlled laboratory experiment is ? = ?(?). a. Describe the meaning of ?′(4) and include right units. b. If the supply of nutrients is limited, which value do you think is larger ?′(4) or ?′(15)?
Causal Hypotheses Find an example (or a summary) of a randomized experiment, controlled experiment, prospective observational...
Causal Hypotheses Find an example (or a summary) of a randomized experiment, controlled experiment, prospective observational study, or retrospective observational study. Good sources are news items about such studies. Briefly describe the study, and in your account, identify the causal hypothesis the study has claimed to have supported as likely true, as well as the comparison groups. Then think critically about the study: state what you think are possible uncontrolled confounding variables that, if true, could call into question the...
. An experiment was performed on a certain metal to determine if the strength is a...
. An experiment was performed on a certain metal to determine if the strength is a function of heating time (hours). Results based on 20 metal sheets are given below. Use the simple linear regression model. ∑X = 40 ∑X2 = 200 ∑Y =   80 ∑Y2 = 1120 ∑XY = 460 Find the estimated y intercept and slope and write the equation of the least squares regression line. Estimate Y when X is equal to 3 hours. Also determine the...
. An experiment was performed on a certain metal to determine if the strength is a...
. An experiment was performed on a certain metal to determine if the strength is a function of heating time (hours). Results based on 25 metal sheets are given below. Use the simple linear regression model. ∑X = 50 ∑X2 = 200 ∑Y = 75 ∑Y2 = 1600 ∑XY = 400 Find the estimated y intercept and slope. Write the equation of the least squares regression line and explain the coefficients. Estimate Y when X is equal to 4 hours....
a. An experiment was performed on a certain metal to determine if the strength is a...
a. An experiment was performed on a certain metal to determine if the strength is a function of heating time (hours). Results based on 25 metal sheets are given below. Use the simple linear regression model. ∑X = 50 ∑X2 = 200 ∑Y = 75 ∑Y2 = 1600 ∑XY = 400 Find the estimated y intercept and slope. Write the equation of the least squares regression line and explain the coefficients. Estimate Y when X is equal to 4 hours....
In a well-controlled petty cash fund, the amount of cash PLUS the amount of expenditure vouchers...
In a well-controlled petty cash fund, the amount of cash PLUS the amount of expenditure vouchers should be equal to the original amount in the petty cash fund. TRUE OR FALSE
metal carbonates decompose to form metal oxides with the evolution o CO2. Design an experiment to...
metal carbonates decompose to form metal oxides with the evolution o CO2. Design an experiment to determine the percentage composition by mass of an unkown mixtre using this type of reaction.
Student Exploration Gizmo: Diffusion 1. Set up experiment: In a controlled experiment, only one variable is...
Student Exploration Gizmo: Diffusion 1. Set up experiment: In a controlled experiment, only one variable is manipulated, or changed. Set up your experiment so that there is just one difference between set-up A and set-up B. List the Gizmo settings you will use for each set-up below. Variable Set Up A Set Up B Wall x in A y in B Temp Particle mass Gather data: Use the Gizmo to fill in each table. As before, the “time to reach...
On July 1, 2005, J & J, Inc. issued 9% bonds in the face amount of...
On July 1, 2005, J & J, Inc. issued 9% bonds in the face amount of $5,000,000, which mature on July 1, 2015. The bonds were issued for $4,695,000 to yield 10%, resulting in a bond discount of $305,000. J & J uses the effective-interest method of amortizing bond discount. Interest is payable annually on June 30. At June 30, 2007, J & J’s unamortized bond discount should be how much?
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT