Question

plz tell fast plz if not I will cry​

Answer 1

Q. 7) HOW CAN YOU SAY THE CUTTING OF PAPER IS A PHYSICAL CHANGE?

➡Cutting paper is a physical change since only the physical properties such as appearance (size and shape) is changed but the chemical composition remains the same. Cutting paper is a physical change because, it involves changing something without changing its chemical structure.

Answer 2

Haha ..

Explanation:

cutting of paper is Physical change because no new things is formed and we can turn pieces of paper back into paper.

36km/hr = 10 m/sec

72 km/hr = 20 m/sec