Convection. As the water molecules are being heated up at bottom, the molecules with less heat energy then move to take their place. By doing this all the water should reach an equal temperature.
Answer: repeatable
Explanation: Accurate repeatable is needed in a valid experiment. I think
Answer:
A
Explanation:
When you pull the string the weight will experience a downward force and come closer to the vertical tube. And the angle between weight and hand through string is decreased so the angular velocity decreases
Answer:
C
Explanation:
elements are classified as covalent, ionic, metallic