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Fofino [41]
3 years ago
11

Which are examples of science rather than pseudoscience? Check all that apply. People can get rid of hiccups by holding their br

eath. The US surgeon general's 1964 report declared that smoking cigarettes was linked to cancer. Going outside with wet hair will cause a person to catch a cold. The average global temperature of the Earth has increased by almost two degrees in the last century. People should not swim right after eating because they could develop severe muscle cramps and drown.
Chemistry
1 answer:
gogolik [260]3 years ago
5 0

Answer:

The US surgeon general's 1964 report declared that smoking cigarettes was linked to cancer

The average global temperature of the Earth has increased by almost two degrees in the last century.

Explanation:

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Lead−206 is the end product of 238u decay. one 206pb atom has a mass of 205.974440 amu. (a) calculate the binding energy per nuc
Dovator [93]
The atomic number for Pb is 82
∴ Pb has 82 protons and 206-82 = 14 protons
The actual mass of Pb nuclei is
=(82 × mass of the proton) + (124 × mass of neutron)
=(82× 1.00728) + (124 × 1.008664) amu
= 207.6713 amu
The mass of lead which is given is 205.9744 amu
∴mass defect is
m = 207.6713 - 205.9744 = 1.6969 amu
=1.6969 × 1.66054 × 10⁻²⁷kg
=2.818 × 10⁻²⁷kg
The binding energy is E = mc²
C is the speed of light in vacuum = 2.9979 × 10⁸m/s
∴ E = 2.532 × 10×⁻¹⁰ J/mol
= 2.532 × 10⁻¹⁰ × 6.023 × 10²³ J/mol 
= 1.53811 × 10¹⁴ J/mol

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3 years ago
Thin, flattened, and typically curved bones, such as the ribs and sternum, form __________ bones.
pav-90 [236]
<span>Thin, flattened, and typically curved bones, such as the ribs or sternum, form falt bones.

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What process in the carbon cycle takes carbon out of air?
Veronika [31]
It is photosynthesis 
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photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct, hope it helps</span>

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According to dalton's model, the atom is a solid sphere. What would the alpha particles do when they hit the floor gold foil if
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Can someone explain these?​
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what??

Explanation?/

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