17. A substance that turns litmus paper blue and has a pH of 8 or greater is a base
A. True
...
![subject](/tpl/images/cats/fizika.png)
Physics, 20.04.2021 19:50 mistiehaas
17. A substance that turns litmus paper blue and has a pH of 8 or greater is a base
A. True
B. False
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 03:50
The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 13:40
Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 18:00
Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 21:00
Acentrifuge in a medical laboratory rotates at an angular speed of 3,700 rev/min. when switched off, it rotates through 54.0 revolutions before coming to rest. find the constant angular acceleration (in rad/s2) of the centrifuge. your response is within 10% of the correct value. this may be due to roundoff error, or you could have a mistake in your calculation. carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. rad/s2
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.08.2020 19:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.08.2020 19:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.08.2020 19:01
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 17.08.2020 19:01
![question](/tpl/images/cats/mat.png)
Mathematics, 17.08.2020 19:01
![question](/tpl/images/cats/himiya.png)
Chemistry, 17.08.2020 19:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.08.2020 19:01
![question](/tpl/images/cats/mat.png)
Mathematics, 17.08.2020 19:01
![question](/tpl/images/cats/mat.png)
Mathematics, 17.08.2020 19:01
![question](/tpl/images/cats/biologiya.png)
Biology, 17.08.2020 19:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.08.2020 19:01
![question](/tpl/images/cats/en.png)
English, 17.08.2020 19:01