The rows of the table called periods had eight elements with atomic mass left to right it was a good model cause u can predict to know elements and properties hope this helped

7 0

3 years ago

if a hydrogen atom were to absorb a small amount of energy where would bohr say the electon would go?

Vesnalui [34]

If it isn't enough energy to make the jump from 1 energy level to the next energy level, then it will go no where

7 0

4 years ago

A 25 kg child is riding on a swing. If the child travels 8.9 m/s at the bottom of their swing, how high into the air is the chil

Setler [38]

Answer:

h = 4.04 m

Explanation:

Given that,

Mass of a child, m = 25 kg

The speed of the child at the bottom of the swing is 8.9 m/s

We need to find the height in the air is the child is able to swing. Let the height is h. Using the conservation of energy such that,

$mgh=\dfrac{1}{2}mv^2\\\\h=\dfrac{v^2}{2g}$

Put all the values,

$h=\dfrac{(8.9)^2}{2\times 9.8}\\\\h=4.04\ m$

So, the child is able to go at a height of 4.04 m.

7 0

3 years ago

This is for science

andriy [413]

Answer:

Look at this picture hopefully it helps

6 0

3 years ago