Aidez moi s’il vous plaît je bloque sur cette exercice : Le trophée de la Coupe du
monde de football pèse 6,175 kg.
Il est en or 18 carats.
Donnée Pourcentage massique
d'or pur dans l'or 18
carats : 75 %
a. Calculer le nombre d'atomes d'or.
b. Calculer la quantité de matière
d'or correspondante.

In the image, the arrow is pointing to a celestial object. which attribute disqualifies the object from being a planet?

Write the correct abbreviation for each metric unit

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.