Utilisé tance
ser) es
ou un
alors
vers
6 La lumière du Soleil
Convertir et calculer
La lumière émise par le Soleil
parcourt 150 000 000 km en
8 min 20 s pour atteindre la
Terre.
Détermine la vitesse de
propagation de la lumière
qui nous parvient du Soleil.
Exprime le résultat en km/s
puis en m/s en utilisant la
a. Pro
de la
b. LE
la di
Just
notation scientifique.

Abearing is designed to a reduce friction b. support a load c. guide moving parts such as wheels, shafts and pivots d. all of the above

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?