III) A relatively well-praised model for a car suspension is depicted in Figure 5: 4 4 Body Mass MW Suspension Mass b₂ ↑" Figure 5 - Model of the suspension of a car. Considering it is a system with two degrees of freedom, WRITE the equations that model the free vibrations of this system.

71.7 is being marked wrong in McGraw Hill homework. I thought I had done it right with putting 86.03 but that is wrong also. I'm not trying to just find the answer, trying to find how to do this. Could there be a different number than 71.7? Where does the μk=0.20 come into the equation?

The figure shows a wooden model to reproduce a metal piece ofaluminum through the sand casting process.a) How much mass (g or kg) of aluminum do you need to melt?b) How much energy Q (Joules) is required? Assume an initial temperature of 50 ° C and a100% thermal efficiency.c) What dimensions will the final metal piece have? all is in cm

As an engineer responsible for monitoring works in the area of ​​mechanical systems, you must evaluate the following situation: a large client in the retail area has a refrigeration system where it stores some chilled or frozen products to be sold on the sales floor.Recently, the customer's maintenance department has been questioning the system's performance and requested an evaluation of the system's behavior. You went to the location and requested some information from the maintenance manager about the system, who provided the following data: - The system operates with R-134a refrigerant;- The refrigerated environment is maintained at 0°C and the external environment at 26°C;- The refrigerant flow rate in the system is 0.08 kg/s; In addition to the data provided, you carried out some tests and measured the temperature of the refrigerant fluid at some specific points in the system, such as the compressor inlet and condenser outlet, finding values ​​of 0°C and 26°C respectively.…

Handwriting not allow please And give me complete answer

It is essential in engineering to consider measurement uncertainty when analysing data. Describe the types of uncertainties that can occur when taking measurements, how to assess them and what affect this can have on thepresentation of data. Include diagrams