Answer:
If you double the mass of an object, you double the kinetic energy. 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:
I think 8 or 6 im not sure
<span>Cr3+ O2- ; the formula is Cr2O3 ( criss cross)</span>
D) burning magnesium ribbon, as combustion is a chemical reaction so causes chemical change. The other 3 options do not involve reactions so there isn't a chemical change.
Norway
england
iceland
sweden
Estonia
latvia
ireland
france
switzerland
portugal
poland
germany
hungry
romana
Ukraine
belarus
austria
vatican city
belgiuiv
crotia
jersey
guernsey
isle of man
denmark
faroe island
san marinc
monace
united kingdom
greece