Physics, 17.10.2021 19:50 hannahmyung1113
determine the velocity of the running man with respect to car a. a) -55 km hr b) -45 km hr c) 45 km hr d) 55 km hr
Answers: 2
Physics, 21.06.2019 22:00, markyyy53
Aroll in a paper machine is powered by a separately excited dc machine. operating point 1 (under load): the roll typically operates at 764 rpm and must provide 301 nm of torque to oppose the load of the paper. the armature voltage is 230v for this operating point operating point 2 (no load): when the load is removed the speed of the roll increases to 900 rpm (the field characteristics are unchanged) la ea dev m (a) calculate the maximum torque (units of nm) that the motor can supply with this applied voltage (b) calculate the value of the armature resistance, ra (in ohms) (c) at operating point 1 (loaded condition), the field current, i, and the total input power (armature field), are measured to be to be 10 a and 28,600 w respectively. use this information to calculate the value of the field resistance, rf (in ohms). (d) (d) at operating point 1 (loaded condition), calculate the motor efficiency. express your answer as a percent to at least 2 significant digits. (d) if the field voltage is reduced by 1/2, calculate the new stall torque (in nm) of the motor (f). if the field voltage is reduced by 1/2, calculate the new no-load speed (in rad/sec)
Answers: 1
Physics, 21.06.2019 23:30, coryowens44
An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector between points f and g.
Answers: 1
Physics, 22.06.2019 15:40, caveman171
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
determine the velocity of the running man with respect to car a. a) -55 km hr b) -45 km hr c) 45 km...
Mathematics, 06.10.2021 14:00
Mathematics, 06.10.2021 14:00
Business, 06.10.2021 14:00
English, 06.10.2021 14:00
Chemistry, 06.10.2021 14:00
Health, 06.10.2021 14:00
Mathematics, 06.10.2021 14:00
Biology, 06.10.2021 14:00
Mathematics, 06.10.2021 14:00