ISBN: 1232317586

[EAN: 9781232317586], Neubuch, [PU: RareBooksClub.com], EDWIN HERBERT HALL,SCIENCE AND MATH,WORLD, This item is printed on demand. Paperback. 32 pages. Dimensions: 9.7in. x 7.4in. x 0.1in… mais…

[EAN: 9781232317586], Neubuch, [PU: RareBooksClub.com], EDWIN HERBERT HALL,SCIENCE AND MATH,WORLD, This item is printed on demand. Paperback. 32 pages. Dimensions: 9.7in. x 7.4in. x 0.1in.This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1894 Excerpt: . . . forces acting straight up or straight down. But very often we have to do with bodies that are acted upon by forces not parallel to each other. Thus when a ladder standing upon the ground leans against a house, we have at least three forces acting upon the ladder: 1st, the earths attraction, or, as we call it often, the weight of the body, which acts as if the whole substance were at the centre of gravity; 2d, the push of the ground against the foot of the ladder, which push is not straight upward; 3d, the push of the wall against the top of the ladder. Again, a flying kite is acted upon by the earths pull, straight downward; by the force exerted by the air, which force, because of the wind, is not straight upward; by the pull of the string, which pull is not straight downward. The way to begin the study of such cases is to study the case of three forces all acting straight from or straight toward a single point. We shall take such a case in Exercise 17. EXERCISE 17. THREE FORCES IN ONE PLANE AND ALL APPLIED TO ONE POINT. Apparatus: Three 8-oz. spring-balances, each provided with two small blocks (No. 21) to go under its sides and hold it flat on its back when it is lying upon the table. The rectangular block (No. 9). The measuring-stick (No. 3). A sheet of paper. Thread. Take two pieces of strong thread, one about 12 inches, the other about 6 inches, long, and tie one end of the short thread to the middle of the long one. Fasten the three loose ends to the hooks of the spring-balances, then lay the latter upon the table, putting the blocks under their sides, as in Fig. 41, and let one student pull at each balance, taking care that the slit of each balanceface is in a straight line with the thread, until no one of these reads less than 3 oz. It will be fou. . . This item ships from La Vergne,TN.<

2012, ISBN: 1232317586

[EAN: 9781232317586], Neubuch, [PU: Rarebooksclub.com, United States], Brand New Book ***** Print on Demand *****. This historic book may have numerous typos and missing text. Purchasers … mais…

[EAN: 9781232317586], Neubuch, [PU: Rarebooksclub.com, United States], Brand New Book ***** Print on Demand *****. This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1894 Excerpt: .forces acting straight up or straight down. But very often we have to do with bodies that are acted upon by forces not parallel to each other. Thus when a ladder standing upon the ground leans against a house, we have at least three forces acting upon the ladder: 1st, the earth s attraction, or, as we call it often, the weight of the body, which acts as if the whole substance were at the centre of gravity; 2d, the push of the ground against the foot of the ladder, which push is not straight upward; 3d, the push of the wall against the top of the ladder. Again, a flying kite is acted upon by the earth s pull, straight downward; by the force exerted by the air, which force, because of the wind, is not straight upward; by the pull of the string, which pull is not straight downward. The way to begin the study of such cases is to study the case of three forces all acting straight from or straight toward a single point. We shall take such a case in Exercise 17. EXERCISE 17. THREE FORCES IN ONE PLANE AND ALL APPLIED TO ONE POINT. Apparatus: Three 8-oz. spring-balances, each provided with two small blocks (No. 21) to go under its sides and hold it flat on its back when it is lying upon the table. The rectangular block (No. 9). The measuring-stick (No. 3). A sheet of paper. Thread. Take two pieces of strong thread, one about 12 inches, the other about 6 inches, long, and tie one end of the short thread to the middle of the long one. Fasten the three loose ends to the hooks of the spring-balances, then lay the latter upon the table, putting the blocks under their sides, as in Fig. 41, and let one student pull at each balance, taking care that the slit of each balanceface is in a straight line with the thread, until no one of these reads less than 3 oz. It will be fou.<

2012, ISBN: 1232317586

[EAN: 9781232317586], Neubuch, [PU: Rarebooksclub.com, United States], Brand New Book ***** Print on Demand *****.This historic book may have numerous typos and missing text. Purchasers c… mais…

[EAN: 9781232317586], Neubuch, [PU: Rarebooksclub.com, United States], Brand New Book ***** Print on Demand *****.This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1894 Excerpt: .forces acting straight up or straight down. But very often we have to do with bodies that are acted upon by forces not parallel to each other. Thus when a ladder standing upon the ground leans against a house, we have at least three forces acting upon the ladder: 1st, the earth s attraction, or, as we call it often, the weight of the body, which acts as if the whole substance were at the centre of gravity; 2d, the push of the ground against the foot of the ladder, which push is not straight upward; 3d, the push of the wall against the top of the ladder. Again, a flying kite is acted upon by the earth s pull, straight downward; by the force exerted by the air, which force, because of the wind, is not straight upward; by the pull of the string, which pull is not straight downward. The way to begin the study of such cases is to study the case of three forces all acting straight from or straight toward a single point. We shall take such a case in Exercise 17. EXERCISE 17. THREE FORCES IN ONE PLANE AND ALL APPLIED TO ONE POINT. Apparatus: Three 8-oz. spring-balances, each provided with two small blocks (No. 21) to go under its sides and hold it flat on its back when it is lying upon the table. The rectangular block (No. 9). The measuring-stick (No. 3). A sheet of paper. Thread. Take two pieces of strong thread, one about 12 inches, the other about 6 inches, long, and tie one end of the short thread to the middle of the long one. Fasten the three loose ends to the hooks of the spring-balances, then lay the latter upon the table, putting the blocks under their sides, as in Fig. 41, and let one student pull at each balance, taking care that the slit of each balanceface is in a straight line with the thread, until no one of these reads less than 3 oz. It will be fou.<