На пружині жорсткістю 40Н на метр закріпили масу 200 г. Яка довжина пружини ?
...
Answers: 3
Physics, 22.06.2019 05:10
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
Answers: 3
Physics, 22.06.2019 23:40
To place a communications satellite into a geosynchronous orbit at an altitude of 22,240 mi above the surface of the earth, the satellite first is released from a space shuttle , which is in a circular orbit at an altitude of 185 mi, and then is propelled by an upper-stage booster to its final altitude. as the satellite passes through a, the booster's motor is fired to insert the satellite into an elliptic transfer orbit. the booster is again fired at b to insert the satellite into a geosynchronous orbit. knowing that the second firing increases the speed of the satellite by 4810ft/s, determine (a.) the speed of the satellite as it approaches b on the elliptic transfer orbit, (b.) the increase in speed resulting from the first firing at a.
Answers: 2
Chemistry, 11.03.2022 01:00
Biology, 11.03.2022 01:00
Mathematics, 11.03.2022 01:00
Computers and Technology, 11.03.2022 01:00
Biology, 11.03.2022 01:00
Social Studies, 11.03.2022 01:00
Mathematics, 11.03.2022 01:00
English, 11.03.2022 01:00
Mathematics, 11.03.2022 01:00
Mathematics, 11.03.2022 01:00