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Which of the following is a measure of the amount of light a star directly emits? a. luminosity b. intensity c. wavelength d. brightness
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Patients with brain tumors may elect to have a procedure known as gamma knife. in a typical gamma knife procedure gamma rays are directed toward a tumor with contact to surrounding tissues. limiting contact between gamma rays and healthy tissue is important because
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Isaac walks 4 blocks north. then he turns he turns around and walks 1 block south. which of the following correctly describes isaac's motion
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What form of electromagnetic radiation can most effectively penetrate human tissue? a. visible ligh...
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