Answer:
<h3>Following are the properties and characteristics of the glass.</h3>
<h3>Hardness and Brittleness. It is a hard material as it has great impact resistance against applied load.</h3>
- Weather Resistance.
- Insulation.
- Chemical Resistance.
- Colour and Shape Varieties.
- Transparency.
- Fire Resistant Glazing.
- Property Modification.
Answer:
Explanation:
Given
Wooden board is pivoted at center and
Older child of mass
is sitting at a distance of L from center
if two child of mass
is sitting at a distance
and
(say) from pivot then net torque about pivot is zero
i.e.

as 
Therefore



Therefore another child is sitting at a distance of 
Answer:
C .96 meters
Explanation: i just had this question
That n2 = 2*n1. That is, the index of refraction is twice as big in medium 2 since v=c/n