Physics, 07.10.2019 20:10 glamorouspotato1251
Aball is whirled on the end of a string in a horizontal circle of radius r at constant speed v. which way(s) can increase the centripetal acceleration of the ball by a factor of 9? group of answer choices keeping the speed fixed and decreasing the radius by a factor of 9 keeping the radius fixed and increasing the speed by a factor of 3 decreasing both the radius and the speed by a factor of 9 keeping the radius fixed and increasing the speed by a factor of 9 increasing both the radius and the speed by a factor of 9 keeping the speed fixed and increasing the radius by a factor of 9
Answers: 1
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 14:00
Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.
Answers: 1
Physics, 22.06.2019 15:40
Apotter's wheel moves uniformly from rest to an angular speed of 0.20 rev/s in 32.0 s. (a) find its angular acceleration in radians per second per second. rad/s2 (b) would doubling the angular acceleration during the given period have doubled final angular speed?
Answers: 1
Aball is whirled on the end of a string in a horizontal circle of radius r at constant speed v. whic...
Mathematics, 12.10.2019 13:20
Physics, 12.10.2019 13:20
Health, 12.10.2019 13:20
Biology, 12.10.2019 13:20
Chemistry, 12.10.2019 13:20
History, 12.10.2019 13:20
Chemistry, 12.10.2019 13:20
Computers and Technology, 12.10.2019 13:20
Mathematics, 12.10.2019 13:20
Mathematics, 12.10.2019 13:20
Mathematics, 12.10.2019 13:20