Answer:
If you double the speed of an object, the kinetic energy increases by four times. The word "kinetic" comes from the Greek word "kinesis" which means motion. Kinetic energy can be passed from one object to another in the form of a collision.
Explanation:
The kinetic energy is proportional to the square of the speed, so doubling the speed increases the kinetic energy by a factor of 4.
Protista contains only unicellular organisms can either be heterotrophs or autotrophs.
Explanation:
plant cells have cell membrane and cell wall while animal cells only have the cell membrane missing the cell wall