The biological effects of a given dose of electromagnetic energy generally become more serious as the energy of the radiation increases: Infrared radiation has a pleasant warming effect; ultraviolet radiation causes tanning and burning; and X rays can cause considerable tissue damage. What energies in kilojoules per mole are associated with the following wavelengths:

a) infared radiation with y= 1.44*10^-6m

b) ultraviolet with y= 233 nm

c) xrays with y=5.34 nm

energy of infrared radiation=13.75×10^-20J

Energy of ultraviolet radiation=8.5×10^-19J

Energy of xrays=3.7×10^-17J

Explanation:

Energy of radiation= h×c/wavelength

h=6.6×10^-34 Js

c=3×10^8 ms-1

For infrared= 6.6×10-34×3×10^8/1.44×10^-6=13.75×10^-20J

For ultraviolet= 6.6×10^-34 × 3×10^8/233×10^-9=8.5×10^-19J

For xrays= 6.6×10^-34×3×10^-8/5.34×10-9=3.7×10^-17J

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.