![Physics](/tpl/images/cats/fizika.png)
Which of the following include exact numbers? a) the speed of light in a vacuum is a physical constant; to the nearest m/s, it is2.99792 ×108 m/s. b) the density of mercury at 25°c is 13.53 g/ml. c) there are 3600 s in 1h. d) in 2003, the united states had 50 states.
![answer](/tpl/images/cats/otvet.png)
Answers: 1
Other questions on the subject: Physics
![image](/tpl/images/cats/fizika.png)
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 05:10, linnialmira
A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm
Answers: 2
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:10, natalieagustinlop54
Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.
Answers: 2
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 14:50, lilyrockstarmag
Abar magnet cut in half will form a total ofpoles. a)fourb)eightc)two
Answers: 1
Do you know the correct answer?
Which of the following include exact numbers? a) the speed of light in a vacuum is a physical const...
Questions in other subjects:
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 12.12.2019 23:31
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.12.2019 23:31
![Konu](/tpl/images/cats/health.png)
Health, 12.12.2019 23:31
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.12.2019 23:31
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.12.2019 23:31