A piece of lead with a mass of 25g causes the water level in a graduated cylinder to rise 3ml. What is the density of the piece of lead.

Can u show with workings too i dont really get this.

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •