Which of the following is an example of a covalent bond?
A-H2o
B-NaCi
C-MgO...
![subject](/tpl/images/cats/fizika.png)
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 22:50
An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 05:30
Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 22:30
Suppose that three astronomical objects, 1, 2, and 3 are observed to lie on a line, and the distance from object 1 to object 3 is d. object 1 has four times the mass of object 3, and seven times the mass of object 2. find the distance between objects 1 and 2 for which the net force on object 2 is zero.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 02:50
Orque can be calculated by multiplying the force (n) applied at 90∘ to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n⋅m. if the force (at 90∘ to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?
Answers: 2
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 30.03.2020 19:33
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 30.03.2020 19:33
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/User.png)
SAT, 30.03.2020 19:33
![question](/tpl/images/cats/mat.png)
Mathematics, 30.03.2020 19:33
![question](/tpl/images/cats/biologiya.png)
Biology, 30.03.2020 19:33
![question](/tpl/images/cats/mat.png)
Mathematics, 30.03.2020 19:33
![question](/tpl/images/cats/istoriya.png)
History, 30.03.2020 19:33
![question](/tpl/images/cats/mat.png)
Mathematics, 30.03.2020 19:33
![question](/tpl/images/cats/mat.png)
Mathematics, 30.03.2020 19:33
![question](/tpl/images/cats/mat.png)
Mathematics, 30.03.2020 19:33
![question](/tpl/images/cats/mat.png)
Mathematics, 30.03.2020 19:33