What does it mean when my right chest feels an unbearable and suffocating pain?is it something really serious?​

In summing we use which law of motion

What happens in the process of photosynthesis

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the dependent variable in galileo's experiment?