The noble gases are the least ____ of any elements on the periodic table. The___ form acidic compounds with hydrogen. The haloge
2 answers:
Explanation :
Noble gases are the elements of group 18. This series contains helium, neon, radon krypton and radon.
The noble gases are the least reactive of any elements on the periodic table. This is because they have eight valance electrons in its outermost shell.
Non-metals or poly atomic ions forms acidic compounds with hydrogen. For example : etc forms acidic compounds with hydrogen.
The halogens are the most reactive among all the elements. This is because halogens suddenly combines with most of the metals. They are never seen uncombined in nature.
For example : Chlorine, fluorine and astatine are some halogens.
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Answer:
Explanation:
<u>Frictional Force </u>
When the car is moving along the curve, it receives a force that tries to take it from the road. It's called centripetal force and the formula to compute it is:
The centripetal acceleration a_c is computed as
Where v is the tangent speed of the car and r is the radius of curvature. Replacing the formula into the first one
For the car to keep on the track, the friction must have the exact same value of the centripetal force and balance the forces. The friction force is computed as
The normal force N is equal to the weight of the car, thus
Equating both forces
Simplifying
Substituting the values