The answer is the Milky Way .
Answer:
When an object vibrates, it causes the molecules in the air around it to move. These molecules collide with nearby molecules, forcing them to vibrate as well. As a result, they collide with more surrounding air molecules.
Explanation:
Answer:
25 m
9.9 m/s
22 m/s
Explanation:
m = Mass of ball
v = Velocity
g = Acceleration due to gravity = 9.81 m/s²
Applying conservation of energy
The height above the ground is 5.09683+20 = 25.09683 m = 25 m
The ball's speed as it passes the window on its way down is 9.9 m/s
The speed of impact on the ground is 22 m/s
Electrical energy is a particle that moves through a wire and transferred into homes, work, etc to make electricity work in objects.
This is an example of free fall;
For free fall the gravitational acceleration is -9.8 m/s²
From the equation;
S = ut -1/2gt², where S is the height above the ground, U is the initial vertical velocity, t is the time taken.
Therefore;
1.2 = 20t - 1/2(9.8)t²
1.2 = 20t -4.9t²
Thus; the equation is -4.9t² + 20t = 1.2, this is the appropriate answer.
