Answer:
Grow up man, this is completely based on your curriculum, we would need your book to answer, and this has to be done by you.
The fraction of energy that is lost is 25%, it depends how fast the ball was going until it lost 25% of its energy, the gravitational energy was transferred into the kinetic energy that helped the ball bounce back
Answer:
boron
aluminum
gallium
indium
thallium
Explanation:
Any of these could work. Nitrogen has 5 valence electrons so you just needed to pick an element that has 3 valence electrons that nitrogen could borrow. This periodic table shows valence electron counts:
Answer:
The purpose of report : Reports communicate information which has been compiled as a result of research and analysis of data and of issues .