All chemical thinners work best at temperatures in the 40s, whereas overthinning will occur at temperatures in the mid to upper 60s, and no thinner is safe at high temperatures
Indicate whether the statement is true or false
F
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¿Cuál de los siguientes elemen- tos se usa en la obra para trasla- dar el concreto de los camiones de entrega de concreto elabo- rado a los lugares de colocación tanto en dirección horizontal como vertical?
a. una mezcladora para gran- des volúmenes b. una canaleta de caída c. una manga articulada d. una bomba pluma de concreto
Find the currents i? through i? and the voltage vo in the circuit in Fig. 3.52.
 FIGURE 1.png)
Hansus Enterprises is a start-up small business specializing in software systems for machine-based high-school student tutoring in science and math. Sheryl Hansus, the owner, has spoken with lenders to obtain a loan of $50,000 now (year 0), and the same amount in years 3 and 6. Two different repayment schedules are available. They are: Schedule A: Pay a uniform amount of $19,500 in years 3 through 12. Schedule B: Pay a uniform amount of $20,000 in years 1 through 6, with “balloon” payments of an additional $20,000 in year 2 and a final amount of $40,000 in year 7. To assist in the decision of which schedule to select, determine the following using a spreadsheet: (a) Total amount repaid for each schedule. Which is smaller? (b) The equivalent annual worth of the loan amounts and of the
repayments at i = 5% per year over a 12-year evaluation period. Which schedule has the smaller loss per year? Why is this the case? What will be an ideal response?
The pitch of a thread is 0.250 inch. How far, in inches, is a nut moved in 7.5 turns?
A. 1.875 B. 1.975 C. 2.075 D. 2.175