Explanation:
When there is no change in chemical composition of a substance then it is known as physical change.
When we say that mass is conserved during a physical change then it means that total mass of the substance or object will remain the same from beginning till the end.
For example, a metal box of mass 20 grams is beaten with hammer. Its shape will change which is a physical change and after beaten with the hammer its mass still remains 20 grams.
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Answer:</h2>
He saves 13.2 minutes
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Explanation:</h2>
Hey! The question is incomplete, but it can be found on the internet. The question is:
How many minutes did he save?
Let's call:
We know that the 135 miles are on the interstate highway where the speed limit is 65 mph. From this, we can calculate the time it takes to drive on this highway. Assuming Richard maintains constant the speed:
Today he is running late and decides to take his chances by driving at 73 mph, so the new time it takes to take the trip is:
So he saves the time 
:
In minutes:
I think the answer is <span>AM radio </span><span>waves. Im not sure but if its right can you mark my brainliest?
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Answer:
The answer is most likely C.
Ready-to-eat foods are stored at the top of the fridge, away from raw foods so that harmful bacteria cannot transfer from the raw food to the cooked food. Raw meat, poultry and fish in sealed containers to stop them touching or dripping onto other foods.
