![subject](/tpl/images/cats/fizika.png)
Physics, 28.12.2020 01:00 beepbeep123
If a bicycle that is traveling at 5 mph speeds up to 10 mph in 5 seconds, what is the bicycle’s acceleration?
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 21:00
Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?
Answers: 2
![question](/tpl/images/cats/fizika.png)
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
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 18:00
Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 22:50
The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?
Answers: 3
You know the right answer?
If a bicycle that is traveling at 5 mph speeds up to 10 mph in 5 seconds, what is the bicycle’s acce...
Questions
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.09.2020 03:01
![question](/tpl/images/cats/pravo.png)
Law, 06.09.2020 03:01
![question](/tpl/images/cats/mat.png)
Mathematics, 06.09.2020 03:01
![question](/tpl/images/cats/himiya.png)
Chemistry, 06.09.2020 03:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.09.2020 04:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 06.09.2020 04:01
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 06.09.2020 04:01
![question](/tpl/images/cats/mat.png)
Mathematics, 06.09.2020 04:01
![question](/tpl/images/cats/mat.png)
Mathematics, 06.09.2020 04:01
![question](/tpl/images/cats/health.png)
Health, 06.09.2020 04:01
![question](/tpl/images/cats/himiya.png)
Chemistry, 06.09.2020 04:01
![question](/tpl/images/cats/mat.png)
Mathematics, 06.09.2020 04:01
![question](/tpl/images/cats/mat.png)
Mathematics, 06.09.2020 04:01
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/es.png)
Spanish, 06.09.2020 04:01