Question

. A 13-g goldfinch has a speed of 8.5 m/s. What is its kinetic energy?

Answer 1

PLEASE PRESS THE “Thanks!” BUTTON! :)
13 g —> 0.013 kg
KE = 1/2(m)(v)^2
KE = 1/2(0.013)(8.5)^2
KE = 0.47 J

Answer 2

The kinetic energy is 0.469 Joule.

The Kinetic energy is given as,

                  $K.E=\frac{1}{2} m*v^{2}$

Where m is mass and v is speed of object.

Given that,  $m=13g=\frac{13}{1000}=0.013Kg$  and $v=8.5m/s$

Substitute values in above expression.

     $K.E=\frac{1}{2}*0.013*(8.5)^{2}=0.469Joule$

Hence, The kinetic energy is 0.469 Joule.

Learn more:

https://brainly.com/question/12337396