When the investigator wanted to reproduce the results with a beam of protons, the thing required is A. Lower speed particles than for the electron beam.
<h3>What is proton?</h3>
It should be noted that a proton simply means a stable subatomic particle that has a positive electric charge.
In this case, when the investigator wanted to reproduce the results with a beam of protons, the thing required is a lower speed particles than for the electron beam.
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Yes......................
B
The Ardi fossil is believed to be 4.4 million years old, providing evidence that humans have been on Earth for 4 million years.
Answer:
Gram
Explanation:
Meter is a unit used to measure length and liter is used to measure liquids therefore using process of elimination the answer has to be gram
