John, a scheduler at Mangel-Wurzel Transport, gets a call from a regular customer needing to move 49.5 m of rock and soil, which John knows from previous experience has an average density of 1220 kg/m². John has available a dump truck with a capacity of 10 m² and a maximum safe load of 6400. kg. Calculate the number of trips the dump truck will have to make to haul the customer's load away. 0 x G ?
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- A student wanted to determine the moisture content of a solid sample using gravimetric methods following the AOAC 930.15 method. The following data were obtained: mass of crucible (container): 24.6743 g initial mass of crucible and sample: 34.2134 g final mass of crucible and sample: 32.0567 g Calculate the %moisture of this sample. Show your entire solving process. You may upload a photo of your solution or you may just type it in.1%PP . lin. A (2 m)-long steel wire in a musical instrument has a radius of (0.3 mm). When the wire is under a tension of (90 N), how ?much does its length change consider Young's modulus equals to (20 · 101º N/m² ) 0.318 cm 3.33 cm 1.38 cm 3.18 cm A future rectangular ship (tanker) filled with oil. If the dimensions of the ship are (250 m) long, (80 m) wide, and (80 m) high. Determine how far the bottom of the ship is ?below sea level consider the total mass of the ship with the oil (10.2 · 10° kg) and the sea density (p = 1024 kg/m³ ) . 49.8 m O 56.3 m 29.6 m 34.7 m O IITom, a scheduler at Mangel-Wurzel Transport, gets a call from a regular customer needing to move 15.8 m² of rock and soil, which Tom knows from previous experience has an average density of 740 kg/m³. Tom has available a dump truck with a capacity of 8 m³ and a maximum safe load of 4500. kg. Calculate the number of trips the dump truck will have to make to haul the customer's load away.
- John, a scheduler at Mangel-Wurzel Transport, gets a call from a regular customer needing to move 49.5 m of rock and soil, which John knows from previous experience has an average density of 1220 kg/m". John has availlable a dump truck with a capacity of 10 m and a maximum safe load of 6400. kg. Calculate the number of trips the dump truck will have to make to haul the customer's load away.1. An iron pellet 1 cm in diameter is subjected to a heat treatment in a vacuum oven at 300 C to degas dissolved hydrogen, which is initially at a concentration of 25 ppm by weight. Estimate the time it will take for the average hydrogen concentration to reach 5 ppm. | DBF = 101 cm/scg. pr 7.8 gr/cm4. Consider a tank with volume 100liters containing a salt solution, Suppose a solution with 2kg/liter of salt flows into the tank at a rate of 5liters/min. The solution in the tank is well-mixed. Solution flows out of the tank at a rate of 5liters/min. If initially there is 20 kg of salt in the tank, how much salt it will be in the tank as the function of time.
- 2) ENERGY TRANSFERS: Conduction, Convection, or Radiation Sunlight travels through space by the method. _Warm air moves around a room due to density differences. _You feel the warmth of a campfire. The spoon you are stirring your hot chocolate with gets hot on the end that you are holding. Ice melts while in your hand You burn your hand on the hot stove. The heater is located on the ground and the warm air rises. Does not require a MEDIUM to travel. a. b. C. d. e. f. 9. h. i.Amylum, commonly known as starch is a white powder with variable molecular formula due to the different number of repeating sugar units based on the plant that it is obtained from. A sample of amylum in the form of spherical beads was subjected to series of analyses to determine physicochemical properties in the quality control unit of a factory. From the results each bead is found to have a 4.5 mL volume and 1.47 g/mL density. 4 of the beads were placed in a reaction chamber combusted, as a result, 43.1 g CO2 and 14.7 g H2O were obtained. If the molecular weight of the amylum is 972.84 g/mol how many repeating units the starch molecule consist and what is the molecular formula of the starch? [Empirical Formula=CxHyOz, Repeating unit=n, Molecular Formula=( CxHyOz)*n= CnxHnyOnz]environmental chemist working for the Environmental Protection Agency (EPA) was directed to collect razor clams from a heavily-contaminated river superfund site and analyze them for cadmium (Cd²+) content using graphite furnace atomic absorption spectrometry (GFAAS). The chemist dried the clams at 95° C overnight and ground them in a scientific blender, resulting in ~ 50 g of homogenized dry weight. A representative 61.00 mg sample was taken from the ~ 50 g of dry material and dissolved in 100.00 mL of 0.1 M HCI to create a sample solution. Using the method of standard additions, the chemist prepared five standard solutions in 100.00-mL volumetric flasks, each containing 5.00-mĹ aliquots of the sample solution. Varying amounts of a 87.0 ppb (ug · L-1) cadmium standard were added to each of the flasks, which were then brought to volume with 0.1 M HCI. The solutions were then examined for their Cd²+ content using GFAAS, resulting in the following absorbance data. Sample Vol. (mL) Cd2+…
- 2 Automobile air bags inflate following a serious impact. The impact triggers the following chemical reaction. 2NaN3 (8)→ 2 Na(s) + 3N₂ (9) S W stry.com/myct/itemView?assignmentProblemID=213377858&attemptNo=2&offset=next X 7 # 3 E D 80 C $ 4 R 888 F V % 5 FS T Y G A Part A 6 B If an automobile air bag has a volume of 11.2 L, what mass of NaN3 (in g) is required to fully inflate the air bag upon impact? Assume STP conditions. IVE ΑΣΦ Provide Feedback m = Submit MacBook Air F6 Y H & 7 Request Answer N 40 U J * 8 @ C PwC FB I M ( 9 K DD ? O ) O g L command 3 F10 P . : ; Review I Constants I Periodic Table I { + [ option = 11 ? 1 I 323) Next > 1 deleteSuppose your topsoil has a cation-exchage capacity of 20. cm(+)/kg soil and a bulk density of 1.41 g/cm3. What is the potential storage capacity of 7.0 inches of this topsoil for calcium? Please calculate one measure of this capacity: If the CEC were empty of calcium, then how much CaCOg (in tons CaCO3/acre) would you have to add to the top 7.0 inches of soil to add 100% of the CEC as calcium? Your Answer: Answer unitsE MasteringChemistry: HW 01b C Get Homework Help With Che b My Questions | bartleby > MyLab and Mastering Home - Students x X A session.masteringchemistry.com/myct/itemView?offset=next&attemptNo=1&assignmentProblemlD=139293464 E Apps W California Fool's Go... CLA Purdue OWL: APA F.. O Christmas Window... C Bianca 4-piece Fabr.. O ANGELINO o How do I format m. O Choosing Resource. New Tab Dashboard >>SEE MORE QUESTIONS