Zarathustra was the first prophet of Iran and his three rules were <span>behave well, speak well, and act well.</span>
Answer:
<em>Single Participant experiment</em>
Explanation:
Single Participant experiment also known as, Single case research design is the most commonly used research model in the field of psychology, learning and human interactions,<em> where the subject acts as his or her own command instead of using another person / group.</em>
Forces are generally measured using a spring scale, they are measured in Joules.