The first elements to form after the big bang were hydrogen and [Select]
The remaining elements were formed later. Elements
up to iron on the periodic table are formed by [Select]
while
elements heavier than iron are formed by
[Select]

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Hydrogen and helium are both members of?