HRM 3400 Lecture Notes - Lecture 3: United Nations Scientific Committee On The Effects Of Atomic Radiation, Heat Cramps, Dry Cleaning

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The basis of operations and existence depends on the principles of physics. Types of energy defined by distance, mass and/or time. Most health effects are chronic in nature, resulting damage can take years to manifest itself. Radiation (ionizing and non-ionizing: 1 million in compensation cost between 1995 and 2004. If (cid:455)ou ha(cid:448)e a hea(cid:396)i(cid:374)g lost, that (cid:449)o(cid:374)"t stop (cid:455)ou f(cid:396)o(cid:373) (cid:449)o(cid:396)ki(cid:374)g. Travels through air in a wave pattern called a sine wave. Wavelength the distance that 1 complete sine wave cycle will travel. # of times/second that a complete sine wave is repeated. Expressed in units of hertz (hz) or cycles/second. The lower the sound (pitch) the lower the frequency. Range that the human ear can hear is 20 to 20,000 hz. F = (cid:3046)=(cid:3050)(cid:3049)(cid:3032)(cid:3032)(cid:3041)(cid:3047) (cid:3046)(cid:3032)(cid:3030)(cid:3042)(cid:3041)(cid:3031)(cid:3046) = (cid:3030)(cid:3030)(cid:3032)(cid:3046) (cid:3046)(cid:3032)(cid:3030)(cid:3042)(cid:3041)(cid:3031)(cid:3046)= . Threshold of hearing envelop or range of sound that the human ear can perceive or hear (20 20,000 hz) Measure of noise uses the decibel (db) logarithmic scale.

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