Yvette drops her cell phone as she is getting out of the truck one day she noticed that the cell phone fell 1.5m to the ground how fast was the phone moving right before hitting the ground

The speed was 5.42 m/s

Explanation:

The height of fall of the phone s = 1.5 m

The phone was at rest in her hand, so the initial velocity u = 0 m/s

The velocity right before the phone strikes the ground v = ?

Using the equation

= + 2gs

where

g is the acceleration due to gravity = 9.81 m/s^2

substituting values, we have

= + 2(9.81 x 1.5)

= 29.43

v = = 5.42 m/s

thermal energy is the answer

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge