an attempt to estimate the height of a tree the Shadow of an upright metre rule was found to be 25 cm and the length of the Shadow of the tree was 7 m what is the height of the tree

The actual height of the tree is 28 m

Explanation:

The given information are;

The length of the shadow of an upright meter rule = 25 cm

The actual height of the meter rule = 100 cm

The length of the shadow of the tree = 7 m

The actual  height of the tree  = h

We have

Which gives;

Therefore;

That is the actual height of the tree = 28 m.

uranium fissions/breaks up giving out energy and neutrons

it breaks and dirupture other materials and other sencews from the bottom