Answer:
these answer choices are extremely confusing to read lol.
so the answer is 125lb x 16oz/1lb x 28g/1oz x 1kg/1000g
<em>a p e x</em>
Answer:
An x-ray detector, because x-rays are produced due to high energy collision of electrons
Explanation:
In order to check if metals are present in a given rock sample, different types of equipment are used. Example of such equipment is an x-ray detector. These x-rays are usually created when the direction of fast-moving electrons are changed as a result of their collision with a metal in a given rock sample. Thus, the best type of equipment that the metallurgical student could use to check if metals are present in a given rock sample is the x-ray detector.
The correct answer would be A. Energy is released.
Hope this helps! :)
Copper rally istnt uesful like iron we have cars and all that but copper is made for like coppercoins and wires
it represents a physical change. it is not a chemical change because its chemical formula does not change unless combustion is involved.