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- A small ferryboat is 4.30 m wide and 5.50 m long. When a loaded truck pulls onto it, the boat sinks an additional 4.50 cm into the river. What is the weight of the truck? kNA cube of unknown material is 0.200 m on each side and has a mass of 17.6 kg. It is suspended in a vat of honey (densityh=1.42 x 103 kg/m³) so that its top surface is at a depth of 2.00 m below the surface of the honey (see figure-not to scale). What is the magnitude of the buoyant force on the cube from the honey?Water towers store water above the level of consumers for times of heavy use, eliminating the need for high-speed pumps. How high (in m) above a user must the water level be to create a gauge pressure of 3.51 × 105 N/m²? t m
- A boat displaces 5.76 m3 of water when if floats on the surface of a lake. What is the magnitude of the buoyant force acting on the boat? (The density of water is 1000kg/m3)A twin-sized air mattress used for camping has dimensions of 95 cm by 225 cm by 13.5 cm when blown up. The mass of the mattress is 2 kg. How heavy a person, in newtons, could the air mattress support if it is floating in freshwater, with density 1000 kg/m3?A water hose with cross sectional area of 4.00 cm2 is used by a gardener to fill a 30.0 liter bucket. (1 L = 1000 cm3). The gardener notices that it takes 1.00 min to fill the bucket. What is the volume flow rate of the hose?
- A small ferryboat is 4.50 m wide and 6.10 m long. When a loaded truck pulls onto it, the boat sinks an additional 4.60 cm into the river. What is the weight of the truck? kN Need Help? Read ItThe hydraulic lift (the figure below) has a small piston with the surface A₁ = 0.040 m² and a large piston with the surface A2 = 6.0 m². f₁ = 21 N. A₂ F₁ |F=? Ayı Submit A₁ 1) What force will the large piston provide if the small piston in a hydraulic lift is moved down as shown in the figure? (Express your answer to two significant figures.) Submit N Submit A₂ If the small piston is depressed a distance of Ay₁, by how much will the large piston rise? (Express your answer to two significant figures.) Ayı Ay2 3) How much work is done in slowly pushing down the small piston if Ay₁ = 0.26 m? (Express your answer to two significant figures.) J +An open barge has the dimensions shown in Fig. . If the barge is made out of 4.0-cm-thick steel plate on each of its four sides and its bottom, what mass of coal can the barge carry in freshwater without sinking? Is there enough room in the barge to hold this amount of coal? (The density of coal is about 1500 kg/m3.)