Which is true about X-rays?
O A. They are no known drawbacks to using X-rays.
B. They are use...
![subject](/tpl/images/cats/fizika.png)
Physics, 30.03.2021 16:30 mjr2002june
Which is true about X-rays?
O A. They are no known drawbacks to using X-rays.
B. They are used to make plants how faster.
C. They have medical benefits, but can be dangerous if overused.
D. There are no medical uses for X-rays.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 20:50
Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t − 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 23:30
In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 23:50
Any color picture tube and electric field exerts a net force of magnitude 1.68x 10^-13 n on an electron the rest mass of an electron is 9.11 x 10^-13 what is the electron acceleration?
Answers: 3
![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
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 16.12.2020 19:10
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.12.2020 19:10
![question](/tpl/images/cats/mat.png)
Mathematics, 16.12.2020 19:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 16.12.2020 19:10
![question](/tpl/images/cats/mat.png)
Mathematics, 16.12.2020 19:10
![question](/tpl/images/cats/mkx.png)
Arts, 16.12.2020 19:10
![question](/tpl/images/cats/en.png)
English, 16.12.2020 19:10
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 16.12.2020 19:10
![question](/tpl/images/cats/mat.png)
Mathematics, 16.12.2020 19:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/health.png)