Exo 2. Evolution du système solaire a) Numérote les évènements suivants dans l'ordre chronologique :
Fusion des roches pour former des planètes
Echauffement de la partie centrale du disque qui donnera naissance au Soleil
Système constitué du Soleil et de 8 planètes 5
Contraction du nuage de gaz qui s'aplatie
Condensation de poussières pour former des roches ​

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

Madison pushes with a 210-n horizontal force on a 24-kg crate of coffee resting on a warehouse floor. the force of friction on the crate is 74 n. what is the acceleration?

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?