(Question)
Q: When waves of two different frequencies interfere, what phenomenon occurs? Choices: - making - opening - soaking - beating A:
(Answer)
beating

(Question)
Q: What is the force that pulls particles at the exposed surface of a liquid toward other liquid particles called? Choices: - conservative tension - shinking tension - transfer tension - surface tension A:
(Answer)
surface tension

(Question)
Q: A reference point is used in measurement to make what? Choices: - deviation - focal point - regression - estimation A:
(Answer)
estimation