Chemistry, 29.03.2021 21:10 christinaruckepegvlp
A person with a sunburn will tell you that the sun gives off energy with its electromagnetic rays.
What does sunscreen lotion do to interfere with the transfer of energy from the sun to a person's skin?
A- Reflects most of the ultraviolet radiation from the sun
B- Causes skin exposed to the sun to tan instead of burn
C- Absorbs the radiation coming from the sun
D- Causes skin cancer from the radiation emitted from the sun
Answers: 3
Chemistry, 22.06.2019 13:00
One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.
Answers: 1
Chemistry, 22.06.2019 14:30
Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize
Answers: 3
A person with a sunburn will tell you that the sun gives off energy with its electromagnetic rays....
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