Physics, 19.09.2019 22:30 sierravick123owr441
Three forces with magnitudes �" = 20 kn, �& = 30 kn, and �( = 15 kn act on a bracket a. express forces �" and �& in cartesian vector notion. b. determine the direction (�) of force �( such that the resultant force contains only a component in the y-direction (note: there are two possible angles. solve for both). c. which angle from part (a) provides a smaller magnitude of the resultant force? d. express the resultant force in cartesian vector notion using the angle from part (c).
Answers: 1
Physics, 21.06.2019 22:10
Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley
Answers: 3
Physics, 21.06.2019 23:20
From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a.m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?
Answers: 1
Physics, 22.06.2019 17:40
The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.
Answers: 3
Physics, 22.06.2019 19:30
A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.
Answers: 1
Three forces with magnitudes �" = 20 kn, �& = 30 kn, and �( = 15 kn act on a bracket a. express...
Business, 26.01.2021 14:00
Mathematics, 26.01.2021 14:00
Mathematics, 26.01.2021 14:00
Mathematics, 26.01.2021 14:00
English, 26.01.2021 14:00
Mathematics, 26.01.2021 14:00
Chemistry, 26.01.2021 14:00
Mathematics, 26.01.2021 14:00
Business, 26.01.2021 14:00
Physics, 26.01.2021 14:00
Mathematics, 26.01.2021 14:00
Mathematics, 26.01.2021 14:00
English, 26.01.2021 14:00
English, 26.01.2021 14:00
Mathematics, 26.01.2021 14:00