Explanation:
Julian should use the ordinary wooden ramp and wooden block as the control . A control group is usually not priority of the experiment. It is used to understand an experiment better.
- The control in this experiment can be just the ordinary wooden ramp and the blocks.
- He should time the rate at which the blocks slides down the ramp.
- This will be a perfect control in the experiment and it can give information about how the blocks will fare ordinarily without any lubricant.
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The process is C. Catabolism.
Answer: when energy is taken away the molecules get closer and move slower,but when energy is added the move faster a break away
Explanation:
I think its density is 850kg/m^3