Engineering, 06.10.2021 14:00 belle5828
The height of a helicopter above the ground is given by h = 2.75t3, where h is in meters and t is in seconds. At t = 2.50 s, the helicopter releases a small mailbag. How long after its release does the mailbag reach the ground? the answer is 11.3 but I can never find out how to get that number, how to I do this?
Answers: 2
Engineering, 04.07.2019 18:10
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
Answers: 1
Engineering, 04.07.2019 18:10
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
Answers: 3
Engineering, 04.07.2019 18:10
Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.
Answers: 3
Engineering, 04.07.2019 18:10
Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
Answers: 2
The height of a helicopter above the ground is given by h = 2.75t3, where h is in meters and t is in...
Chemistry, 05.12.2020 14:00
English, 05.12.2020 14:00
English, 05.12.2020 14:00
English, 05.12.2020 14:00
Mathematics, 05.12.2020 14:00
Arts, 05.12.2020 14:00
Mathematics, 05.12.2020 14:00
English, 05.12.2020 14:00
Mathematics, 05.12.2020 14:00
Chemistry, 05.12.2020 14:00
Mathematics, 05.12.2020 14:00
English, 05.12.2020 14:00
Mathematics, 05.12.2020 14:00