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Posted: **Sun Jul 10, 2022 3:41 pm**

: 1 5 Points Details Sercp11 9 2 Op 001 A Block Of Solid Lead Sits On A Flat Level Surface Lead Has A Density Of 1 1 (38.82 KiB) Viewed 49 times

: 1 5 Points Details Sercp11 9 2 Op 001 A Block Of Solid Lead Sits On A Flat Level Surface Lead Has A Density Of 1 2 (39.02 KiB) Viewed 49 times

: 1 5 Points Details Sercp11 9 2 Op 001 A Block Of Solid Lead Sits On A Flat Level Surface Lead Has A Density Of 1 3 (20.42 KiB) Viewed 49 times

1. [-/5 Points] DETAILS SERCP11 9.2.OP.001. A block of solid lead sits on a flat, level surface. Lead has a density of 1.13 x 104 kg/m³. The mass of the block is 21.4 kg. (a) What is the volume of the block (in m³)? Need Help? (b) The amount of surface area of the block in contact with the surface is 2.33 x 10-2 m². What is the average pressure (in Pa) exerted on the surface by the block? Pa MY NOTES Read It Need Help? ASK YOUR TEACHER 2. [-/5 Points] DETAILS SERCP11 9.2.OP.006. MY NOTES ASK YOUR TEACHER A particular table has three identical legs, and the surface area at the bottom of each leg in contact with the floor is 4.00 x 104 m². Assume the legs are uniformly spaced around the table, and the mass of the table is uniformly distributed with respect to the legs. The total mass of the table is 30.7 kg. What is the pressure (in Pa) on the bottom of each table leg (due to the floor alone, ignoring atmospheric pressure)? Pa Read It
3. [-/5 Points] DETAILS A 61.2 kg woman stands on a horizontal surface. HINT SERCP11 9.2.P.001. (a) What is the volume of the woman's body (in m³) if her average density is 983 kg/m³? m³ Need Help? Read It (b) What average pressure (in Pa) from her weight is exerted on the horizontal surface if her two feet have a combined area of 3.72 x 10-2 m²? Pa MY NOTES (c) Calculate the density of the British sovereign coin. kg/m³ Need Help? 4. [-/10 Points] DETAILS SERCP11 9.2.P.002. The British gold sovereign coin is an alloy of gold and copper having a total mass of 7.988 g, and is 22-karat gold. (a) Find the mass of gold in the sovereign in kilograms using the fact that the number of karats = 24 x (mass of gold)/(total mass). kg (b) Calculate the volumes of gold and copper, respectively, used to manufacture the coin. volume of gold m³ volume of copper m³ Read It ASK YOUR TEACHER MY NOTES ASK YOUR TEACHER
5. [-/5 Points] DETAILS SERCP11 9.2.P.003. MY NOTES ASK YOUR TEACHER The weight of Earth's atmosphere exerts an average pressure of 1.01 x 105 Pa on the ground at sea level. Use the definition of pressure to estimate the weight of Earth's atmosphere (in N) by approximating Earth as a sphere of radius RE = 6.38 x 106 m and surface area A = 4R₂². HINT N Need Help? Submit Answer Read It Watch It