Question 2 10 pts Araft is made of wood with a density of 850 kg/m3. The...
Question 3 10 pts A raft is made of wood with a density of 850 kg/m2. 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 m3? O 0.5 O 0.6 O 0.3 O 0.8
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 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 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) 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...
A 100 kg block of lead with a density of 11,340 kg/m3 is submerged/floating in saltwater with a density of 1024 kg/m3. a) Will the block float? Provide your reasoning and a sketch of the situation. (10 Points) b) What is the force of buoyancy on the lead block? (10 Points) c) What is the force due to gravity on the lead block? d) What is the force of buoyancy on a 100 kg block of wood with a density...
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...
2. 95% of a wood block is submerged in water (density= 1000 kg/m). A layer of oil with a density of 880 kg/m' is now poured on top, to a depth that more than covers the block, as shown. Find the resulting new volume fraction submerged in water, V(in water) / V(block). Hints: (i) You get two buoyant forces - one for each liquid; Also note that (ii) volume, V(block) = V(in water) + V(in oil). d=880 kg/m² V =...
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...