A teacher has a round flask with holes in it. As she pushes down the water comes out of the holes. Explain why, she repeats the experiment with a flask with no holes. What will happen? Why?

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.

Bahan yang digunakan mencegah terjadinya polarisasi pada batu baterai a. larutan h2so4b. mncl2 dan serbuk karbonc. pbso4d. nh4cl