![subject](/tpl/images/cats/fizika.png)
Physics, 03.09.2020 21:01 skeletonorchestra
Setting concrete at 50°C is preferable to setting it at 5°C. Why?
At 50°C, the concrete sets more quickly.
At 50°C, the concrete sets more slowly.
At 50°C, the concrete sets to have a greater final compressive strength.
At 50°C, the concrete sets to have a lesser final compressive strength.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 05:10
What is the electric force acting between two charges of -0.0045 c and -0.0025 c that are 0.0060 m apart? use fe=kq1q2/r^2 and k = 9.00 x 10^9 n*m^2/c^2 a. 1.7 x 10^7 n b. -1.7 x 10^7 n c. -2.8 x 10^9 n d. 2.8 x 10^9 n
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 09:40
Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 20:00
Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 00:40
Aforce of 8,480 n is applied to a chart to accelerate it at a rate of 26.5 m/s2. what is the mass of the cart?
Answers: 1
You know the right answer?
Setting concrete at 50°C is preferable to setting it at 5°C. Why?
At 50°C, the concrete sets more q...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 09:28
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 05.05.2020 09:28
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 05.05.2020 09:28
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 09:28
![question](/tpl/images/cats/himiya.png)
Chemistry, 05.05.2020 09:28
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 09:28
![question](/tpl/images/cats/fr.png)
French, 05.05.2020 09:28
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
English, 05.05.2020 09:29
![question](/tpl/images/cats/istoriya.png)
History, 05.05.2020 09:29
![question](/tpl/images/cats/fizika.png)