Physics, 26.11.2019 00:31 addisynshepherd
Ascene in a movie has a stuntman falling through a floor onto a bed in the room below. the plan is to have the actor fall on his back, but you have been hired to investigate the safety of this stunt. when you examine the mattress, you see that it effectively has a spring constant of 65144 n/m for the area likely to be impacted by the stuntman, but cannot depress more than 12.89 cm without injuring him. to approach this problem, consider a simplified version of the situation. a mass falls through a height of 3.32 m before landing on a spring of force constant 65144 n/m. calculate the maximum mass that can fall on the mattress without exceeding the maximum compression distance.
= kg
Answers: 3
Physics, 22.06.2019 01:30
For problems 1-3, consider a simple dc brush motor with a permanent magnet stator. with an an consider a simple dc brush motor with a permanent magnet ae supply voltage of 100 v, the no-load speed of the motor is 1000 rpm. this motor can provide a torque of 1.9 n-m at 800 rpm drawing a current of 2 a current are both zero at no load.) 1. with an armature supply voltage of 100 v, the motor is operated at 900 rpm. what is the motor torque? what is the mechanical power delivered by the motor? what is the current draw? what is the electrical power input? what is the energy efficiency of the motor? with an armature supply voltage of 100 v, the motor is operated at 1100 rpm (where it acts as a generator). what torque input is required? what mechanical power is required what current is generated? what is the electrical power generated? what is the energy efficiency of the motor acting as a generator? 2. with an armature supply voltage raised to 120 v, the motor is operated at 1000 rpm. what is the no-load speed? what is the motor torque? what is the mechanical power delivered by the motor? what is the current draw? what is the electrical power input what is the energy efficiency of the motor? 3.
Answers: 3
Physics, 22.06.2019 08:30
Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.
Answers: 3
Physics, 22.06.2019 08:30
An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?
Answers: 1
Physics, 22.06.2019 16:00
The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2
Answers: 1
Ascene in a movie has a stuntman falling through a floor onto a bed in the room below. the plan is t...
Mathematics, 15.06.2020 05:57
Chemistry, 15.06.2020 05:57
English, 15.06.2020 05:57
Mathematics, 15.06.2020 05:57
Mathematics, 15.06.2020 05:57
English, 15.06.2020 05:57
Mathematics, 15.06.2020 05:57
Mathematics, 15.06.2020 05:57
Health, 15.06.2020 05:57
Mathematics, 15.06.2020 05:57
Business, 15.06.2020 05:57