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3. On a vacation trip up in Oregon my boys decided to build a 10 kg raft that they made out of driftwood. They decided to try out their raft on a pond nearby and it floats. The density of the pond water is 1000 kg/m³ and the density of the drift wood is 685 kg/m³. b. a. Calculate the volume of the raft. c. b. Calculate the magnitude of the buoyant force on the raft and state its direction Next they decide to add weights to the raft to test how much it can hold. They find some metal weights in the garage that are made out of brass (density = 8,000 kg/m3) and they add them one at a time until the raft is fully submerged. a. C. Determine the new buoyant force on the raft. b. d. What was the amount of mass added to the raft that would cause it to be fully submerged but not sink?

3. On a vacation trip up in Oregon my boys decided to build a 10 kg raft that they made out of driftwood. They decided to try out their raft on a pond nearby and it floats. The density of the pond water is 1000 kg/m³ and the density of the drift wood is 685 kg/m³. b. a. Calculate the volume of the raft. c. b. Calculate the magnitude of the buoyant force on the raft and state its direction Next they decide to add weights to the raft to test how much it can hold. They find some metal weights in the garage that are made out of brass (density = 8,000 kg/m3) and they add them one at a time until the raft is fully submerged. a. C. Determine the new buoyant force on the raft. b. d. What was the amount of mass added to the raft that would cause it to be fully submerged but not sink?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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need help with part c. I know the combined density equals the density of water but can't remember how to calculate it.  thanks

a. 3. On a vacation trip up in Oregon my boys decided to build a 10 kg raft that they made out of driftwood. They decided to try out their raft on a pond nearby and it floats. The density of the pond water is 1000 kg/m³ and the density of the drift wood is 685 kg/m³. b. a. Calculate the volume of the raft. c. b. Calculate the magnitude of the buoyant force on the raft and state its direction Next they decide to add weights to the raft to test how much it can hold. They find some metal weights in the garage that are made out of brass (density = 8,000 kg/m3) and they add them one at a time until the raft is fully submerged. a. C. Determine the new buoyant force on the raft. b. d. What was the amount of mass added to the raft that would cause it to be fully submerged but not sink?
Transcribed Image Text:a. 3. On a vacation trip up in Oregon my boys decided to build a 10 kg raft that they made out of driftwood. They decided to try out their raft on a pond nearby and it floats. The density of the pond water is 1000 kg/m³ and the density of the drift wood is 685 kg/m³. b. a. Calculate the volume of the raft. c. b. Calculate the magnitude of the buoyant force on the raft and state its direction Next they decide to add weights to the raft to test how much it can hold. They find some metal weights in the garage that are made out of brass (density = 8,000 kg/m3) and they add them one at a time until the raft is fully submerged. a. C. Determine the new buoyant force on the raft. b. d. What was the amount of mass added to the raft that would cause it to be fully submerged but not sink?
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