Physics, 12.07.2019 16:00 mikecampbellashleyca
Standing side by side, you and a friend step off a bridge and fall for 1.6s to the water below. your friend goes first, and you follow after he has dropped a distance of 2.0m. (a) (i figured a out, you are 2.0 meters apart when you friend hits the water but i need with b) (b) verify this with a calculation
Answers: 1
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, 22.06.2019 13:20, monkeygaming274
Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.
Answers: 1
Standing side by side, you and a friend step off a bridge and fall for 1.6s to the water below. your...
Social Studies, 30.11.2020 20:10
Computers and Technology, 30.11.2020 20:10
English, 30.11.2020 20:10
Mathematics, 30.11.2020 20:10