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Physics: Exercise 2: (7Pts) We give: the mass of a person m=80Kg. 1- Give the expression of FAB the force applied by a spherical body A with mass Am and its radius RA to a small body B with mass BM, (where h is the distance between A and B). Look at the figure below 2- Calculate the weight Po of the person on the Surface of Earth? We give go=9.81N/kg. 3- If ou kow that the gravity g changes with the height h, give the expression of gh in function of: G, MT, RT, h? 4- Deduce the expression of go the gravity on surface of Earth? 5- Give the expression of gh in function of go, RT, h. 6- Calculate Ph where the height is h=8850m? 7- What will be its PL on the moon? we know that the gravity on the moon is gL=go/6. h B (m) RA We give: Radius of the earth R = 6400Km. Radius of the Mars RT 0,53 =MR. Constant of gravity: G-6.67.10-11N.m².kg2 Mass of Mars MM= 6,58.1023 kg. A (m) Exercise 3: (6Pts) Part I: A Student skips on ice with mass is m=60kg, and applied a compressive force F=600N. The area of shoe skiing is equals 0.5m². 1- Calculate the pressure applied by skipper on ice. 2- Calculate this pressure in Bar. 3-Calculate the compressive force F' that will be applied by a body at the same area, to get a pressure P' equals the atmospheric pressure. 4- Deduce the mass m of the body that makes this pressure. Part II: A bottle from steel has a circular bottom with radius R = 25cm, inside the closed bottle we have an ideal gas with pressure P = 2atm. 1- Calculate the surface of the bottle? 2- Represent the compressive force F applied by the gas to the bottom of the bottle? 3- Calculate the compressive force F?

Physics: Exercise 2: (7Pts) We give: the mass of a person m=80Kg. 1- Give the expression of FAB the force applied by a spherical body A with mass Am and its radius RA to a small body B with mass BM, (where h is the distance between A and B). Look at the figure below 2- Calculate the weight Po of the person on the Surface of Earth? We give go=9.81N/kg. 3- If ou kow that the gravity g changes with the height h, give the expression of gh in function of: G, MT, RT, h? 4- Deduce the expression of go the gravity on surface of Earth? 5- Give the expression of gh in function of go, RT, h. 6- Calculate Ph where the height is h=8850m? 7- What will be its PL on the moon? we know that the gravity on the moon is gL=go/6. h B (m) RA We give: Radius of the earth R = 6400Km. Radius of the Mars RT 0,53 =MR. Constant of gravity: G-6.67.10-11N.m².kg2 Mass of Mars MM= 6,58.1023 kg. A (m) Exercise 3: (6Pts) Part I: A Student skips on ice with mass is m=60kg, and applied a compressive force F=600N. The area of shoe skiing is equals 0.5m². 1- Calculate the pressure applied by skipper on ice. 2- Calculate this pressure in Bar. 3-Calculate the compressive force F' that will be applied by a body at the same area, to get a pressure P' equals the atmospheric pressure. 4- Deduce the mass m of the body that makes this pressure. Part II: A bottle from steel has a circular bottom with radius R = 25cm, inside the closed bottle we have an ideal gas with pressure P = 2atm. 1- Calculate the surface of the bottle? 2- Represent the compressive force F applied by the gas to the bottom of the bottle? 3- Calculate the compressive force F?

Physics for Scientists and Engineers: Foundations and Connections
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter7: Gravity
Section: Chapter Questions
Problem 64PQ
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Physics: Exercise 2: (7Pts) We give: the mass of a person m=80Kg. 1- Give the expression of FAB the force applied by a spherical body A with mass Am and its radius RA to a small body B with mass BM, (where h is the distance between A and B). Look at the figure below 2- Calculate the weight Po of the person on the Surface of Earth? We give go=9.81N/kg. 3- If ou kow that the gravity g changes with the height h, give the expression of gh in function of: G, MT, RT, h? 4- Deduce the expression of go the gravity on surface of Earth? 5- Give the expression of gh in function of go, RT, h. 6- Calculate Ph where the height is h=8850m? 7- What will be its PL on the moon? we know that the gravity on the moon is gL=go/6. h B (m) RA We give: Radius of the earth R = 6400Km. Radius of the Mars RT 0,53 =MR. Constant of gravity: G-6.67.10-11N.m².kg2 Mass of Mars MM= 6,58.1023 kg. A (m) Exercise 3: (6Pts) Part I: A Student skips on ice with mass is m=60kg, and applied a compressive force F=600N. The area of shoe skiing is equals 0.5m². 1- Calculate the pressure applied by skipper on ice. 2- Calculate this pressure in Bar. 3-Calculate the compressive force F' that will be applied by a body at the same area, to get a pressure P' equals the atmospheric pressure. 4- Deduce the mass m of the body that makes this pressure. Part II: A bottle from steel has a circular bottom with radius R = 25cm, inside the closed bottle we have an ideal gas with pressure P = 2atm. 1- Calculate the surface of the bottle? 2- Represent the compressive force F applied by the gas to the bottom of the bottle? 3- Calculate the compressive force F?
Transcribed Image Text:Physics: Exercise 2: (7Pts) We give: the mass of a person m=80Kg. 1- Give the expression of FAB the force applied by a spherical body A with mass Am and its radius RA to a small body B with mass BM, (where h is the distance between A and B). Look at the figure below 2- Calculate the weight Po of the person on the Surface of Earth? We give go=9.81N/kg. 3- If ou kow that the gravity g changes with the height h, give the expression of gh in function of: G, MT, RT, h? 4- Deduce the expression of go the gravity on surface of Earth? 5- Give the expression of gh in function of go, RT, h. 6- Calculate Ph where the height is h=8850m? 7- What will be its PL on the moon? we know that the gravity on the moon is gL=go/6. h B (m) RA We give: Radius of the earth R = 6400Km. Radius of the Mars RT 0,53 =MR. Constant of gravity: G-6.67.10-11N.m².kg2 Mass of Mars MM= 6,58.1023 kg. A (m) Exercise 3: (6Pts) Part I: A Student skips on ice with mass is m=60kg, and applied a compressive force F=600N. The area of shoe skiing is equals 0.5m². 1- Calculate the pressure applied by skipper on ice. 2- Calculate this pressure in Bar. 3-Calculate the compressive force F' that will be applied by a body at the same area, to get a pressure P' equals the atmospheric pressure. 4- Deduce the mass m of the body that makes this pressure. Part II: A bottle from steel has a circular bottom with radius R = 25cm, inside the closed bottle we have an ideal gas with pressure P = 2atm. 1- Calculate the surface of the bottle? 2- Represent the compressive force F applied by the gas to the bottom of the bottle? 3- Calculate the compressive force F?
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