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On the macroscopic level , it can explain the heat , work , and power associated with the human body . Physics is involved in medical diagnostics , such as x-rays , magnetic resonance imaging -LRB- MRI -RRB- , and ultrasonic blood flow measurements . Medical therapy sometimes directly involves physics ; for example , cancer radiotherapy uses ionizing radiation . Physics can also explain sensory phenomena , such as how musical instruments make sound , how the eye detects color , and how lasers can transmit information . It is not necessary to formally study all applications of physics .
Please check all the words that can be used instead of the target word in the same context. Note that the morphology of the target (third person singular, past tense etc.) is considered to be applied to the candidate automatically in the process of paraphrasing.