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New plastic fuel tanks for cars can be molded to many shapes, an advantage over the current metal tanks, allowing manufacturers to increase the tank capacity from 77 liters [L] to 82 liters [L]. What is this capacity increase in units of gallons (gal)?
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- The size of your classroom is 80 ft wide, 40 ft deep, and 12 ft high. Assume that theair in the classroom is 25 oC and at 14.7 psia. Calculate(a) the mass of oxygen in the room in kilograms, and(b) the viscosity of the air, in pascal-seconds (Pa s) [kg/(m s)].arrow_forwardI need help with this question :)arrow_forward(a) A fluid has dynamic viscosity 1.3 x 10-3 Pa.s and specific volume 1.32 x 10-3 m3/kg. Calculate the specific weight [kN/m³] and the kinematic viscosity [m?/s]. (b) The weight of water in a container is 12.56 N. Calculate the volume [litres] and the mass of water [kg].arrow_forward
- A cylindrical pipe with a cross-sectional radius r = 1.40[cm] is plunged into a l = 2.30[m] tall open water drum that is initially completely filled with water (pwater = 1000 [kg/m3]). The pipe goes h1 = 0.35 [m] above the drum before dropping down h2 = 3.50 [m] below the base of the drum as shown. The cross-sectional radius of the top side of the pipe is R = 2.20 [cm].A. How fast is the water going out of this pipe?B. What's the liquid's pressure at the top of the pipe? Assume that the system is exposed to 1.00 [atm] of air pressure.C. What's the maximum height the pipe can go above the drum before the water stops flowing out of the pipe? For liquid flow to be continuous, the liquid’s pressure must not fall before its vapor pressure. Assume that vapor pressure, in this case, is 2.30 [kPa].arrow_forwardA 37.3 kW [50 HP] gasoline tractor is used to operate a pull-type sprayer. The tractor’s list price was $6,500 and it is used an average of 400 hours per year. The sprayer’s list price is $1,500 and it is used 100 hours per year. The sprayer has a 9.2 m [30 ft.] boom and operates at 8 km/hr. [5 mi/hr.] with a field efficiency of 60%. Fuel cost 15 ¢/L [56.8 ¢/gal] and the labor cost is $3.00/hr. What are the total hourly cost, the cost per hectare, and the cost per acre sprayed? The tractor is expected to be owned for 15 years and the sprayer for 10 years.arrow_forwardA given model of smartwatch worn by a diver is rated for 5 atm. If the diver swam downwards in a brackish lake with water density of 63 lbm/ft3, how deep [ft] will he reach before water starts entering the watch above the rated pressure specification? Assume that atmospheric pressure is equal to 14.5 psi.arrow_forward
- Consider the piston-cylinder assembly shown below. Heavy weights are added to the piston, compressing the gas. Assume that the gas reaches an internal pressure of 1.5 bar after the compression is done. The pressure outside the piston-cylinder is 1 bar. We also know that the piston diameter is 20 [cm.] With how much force doe the gas push upward on the piston (in Newtons?) Weights Piston System boundary Gas Ро garrow_forward2) A crane lifts a container of 32 [Ton] mass, on a platform located at a height of h, and this takes a time of t = 9.3 [s], if the engine of the crane develops a power of 125663 [Watts]. How high is this platform? For the purpose of solving this problem, use gravity as 10 m / s ^ 2.arrow_forwardA plastic bin with a volume of 1 gallon [gal] has a mass of 0.35 kilograms [kg] when empty and is sitting on a table in a warehouse. After the bin becomes partially filled, 1.3 pounds-force [lb] of force is applied to move the bin across the table, and the bin and its contents accelerate at a rate of 1.5 meters per second squared Ignore frictional losses. Determine the total weight of the bin and its contents in units of newtons [N].arrow_forward
- Please solve fastarrow_forwardPlease fallow this format to answer the questionarrow_forwardAssume you purchase a new heat pump rated at 3 Refrigeration Tons [RT] and you estimate to use the heat pump for 13 hours per day [h/d] during the month of April (30 days), at a cost of $0.11 per kilowatt-hour [$/(kW h)]. What is the total cost, in dollars [$], to operate the heat pump in the month of April?arrow_forward
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