**Answer:There is no answer we need more information **

**Explanation:**

**Answer:**

1.33 m/s

**Explanation:**

The formula for Kinetic Energy is given as:

Where, m is the mass and v is the velocity of the object. In order to tell how fast is the object moving we need to calculate its velocity.

Re-arranging the above equation and isolating v, we get

Putting values in this equation, we get:

**Thus, the object is moving with a velocity of 1.33 m/s**

C. F1 generation is all Yy (let Y be yellow and y be green). Y is dominant to y. The F2 could be YY, Yy, Yy, or yy. 3:1

It will increase,this is called ear pressure.It even happens if the aircraft is pressurised.