si le palladium contient 46 électrons et 60 neutrons , quel est le nombre de protons présent dans le noyau​

Ben(55 kg) is standing on very slippery ice when junior(25kg) bumps into him. junior was moving at a speed of 8m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision .

What is the length x of the side of the triangle below? (hint: use the cosine function)

An object of dimensions 50 cm x 40 cm x 0.20 cm has a mass 60g. find its density in g/cm3 and kg/ m3