Assessment started: undefined. Item 1
When two objects collide, the momentum of the system remains constant.

What is this is a statement of?

Newton's third law

a change in momentum

the conservation of momentum

impulse

Lin yao looks at the back of a spoon. how should she describe her reflection? upside down and smaller upside down and larger right-side up and smaller right-side up and larger

Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.

Why did thomson's results from experimenting with cathode rays cause a big change in specific thought about atoms ?