Question 3 10 pts A raft is made of wood with a density of 850 kg/m2....
Question 2 10 pts Araft is made of wood with a density of 850 kg/m3. The raft floats in a lake of freshwater with density 1000 kg/m2. A person of mass 75kg stands on the raft. The raft is fully submerged but the person's feet do not get wet. What is the volume of the wooden raft in m?? 0.6 0.5 o 0.8 0.3
A raft is constructed of wood having a density of 6 x102 kg/m2. Its surface area is 5.7 m2, and its volume is 0.6 m². To what depth h does the raft submerge when placed in the river? Pwater = 1000 kg/m3
A wooden raft has a mass of 100.0 kg. When empty it floats in water (density of 1000 kg/m3 ) with 40% of its volume submerged. How many students of mass 75 kg each can stand on the raft without it sinking?
A young boy at summer camp stands on a wooden raft (ρw = 700 kg/m3 ) floating in a freshwater lake (ρ = 1000 kg/m3 ) and finds that his weight just cancels the buoyancy of the raft; the water touches the soles of his feet but the raft doesn’t sink. He then jumps onto rectangular block of Styrofoam (ρs = 50 kg/m3 ). The Styrofoam has 1/3 the volume of the wooden raft, but now the top of the...
A raft is made of 10 logs lashed together. Each is 37.0 cm in diameter and has a length of 7.00 m. How many people (whole number) can the raft hold before they start getting their feet wet, assuming the average person has a mass of 70.0 kg? Do not neglect the weight of the logs. Assume the density of wood is 600 kg/m
a) A block of wood (density 600 kg / m3) has a length of 40 cm, a width of 30 cm and a height of 20 cm How much percentage of the total volume is submerged in oil of density 950 kg / m ^ 3? b) Force required to remove a circular plug of 0.02 meters radius from a bathtub whose water level is 0.5 m high with respect to the bottom of it? Consider the density of water...
Problem A 5-m container is filled with 850 kg of granite (density 2300 kg/m) and the rest of the volume is air with density 1.15 kg/m2. Find the mass of air and the average specific volume. Problem 3 A tank has two rooms separated by a membrane. Room A has 1 kg air and volume 0.45 m3. Room B has 0.8 m air with density 1.6 kg/m3. The membrane is removed, and the air comes to a uniform state. Find...
A U-tube contains liquid of unknown density. An oil of density 770 kg/m³ is poured into one arm of the tube until the oil column is 13.5 cm high. The oil-air interface is then 4.5 cm above the liquid level in the other arm of the U-tube. Find the density of the liquid. A raft is made of 11 logs lashed together. Each is 38.0 cm in diameter and has a length of 7.00 m. How many people (whole number)...
Show Instructions Question 1 1 pts A 10cmx10cmx10cm cube of density 650 kg/m3 and is submerged in a container filled with water of density 1000 kg/m3. It is initially held at rest by a string which is attached to the bottom of the container, as shown in the figure. When we cut the string, the cube starts moving upwards. Find the initial acceleration of the cube, immediately after it is released. Answer in units of m/s2 O 15.1 O 8.02...
ater (density 1000 kg/m3, viscosity 0.001 N-s/m2) flows from a large reservoir through straight pipe into the atmosphere at a flowrate of 2.5 m3/s. The reservoir is pressurized to 200 kPa (gage). The pipe has a diameter of 0.5 m and absolute roughness of 0.1 mm. The pipe also contains a turbine that has an efficiency of 0.6. si A) Is the flow in the pipe laminar or turbulent? (3 pts) B) What is the power transmitted from the turbine...