Answer:
A ruby is measures a 9 on the Mohs Scale of Hardness, second only to diamond and matched with sapphire. This makes a ruby an extremely hard and durable gemstone.
A sapphire is the birthstone for September. It is also a traditional gift for those celebrating 5th or 45th anniversaries.
Swimming, because during swimming we use more muscles than when we sprint, stretch, etc..
Answer:
The angle in between changed from 8 to 12 degrees
Explanation:
Solution:-
Angle between the incoming and reflected beam is always twice that of the inclination of the mirror.
Initially, Inclination angle θ = 4 degrees
Angle between incident and reflected beam is twice of the inclination of mirror. Hence,
Φ = 2*θ = 2*4 = 8 degrees.
Change, Inclination angle θ = 6 degrees
Angle between incident and reflected beam is twice of the inclination of mirror. Hence,
Φ = 2*θ = 2*6 = 12 degrees.
- The angle formed by the incoming laser beam and the reflected laser beam will change from 8 degrees to 12 degrees.
Keplers third law is also called the Law of Orbits
