Engineering, 11.06.2020 16:02 allimaycatp8qgaq
A small grinding wheel is attached to the shaft of an electric motor which has a rated speed of 4200 rpm. When the power is turned on, the unit reaches its rated speed in 5 s, and when the power is turned off, the unit coasts to rest in 70 s. Assume uniformly accelerated motion. determine the number of revolutions that the motor executes
(a) in reaching its rated speed,
(b) in coating to rest.
Answers: 1
, b) 
Another question on Engineering
Engineering, 04.07.2019 18:10
Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2
Answers: 3
Engineering, 04.07.2019 18:10
The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false
Answers: 1
Engineering, 04.07.2019 18:10
The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
Answers: 2
Engineering, 04.07.2019 18:10
Burgers vector is generally parallel to the dislocation line. a)-true b)-false
Answers: 2
You know the right answer?
A small grinding wheel is attached to the shaft of an electric motor which has a rated speed of 4200...
Questions
English, 27.05.2020 23:06
English, 27.05.2020 23:06
Mathematics, 27.05.2020 23:06
Mathematics, 27.05.2020 23:06
Mathematics, 27.05.2020 23:06
English, 27.05.2020 23:06
Mathematics, 27.05.2020 23:06
