Answer:
Knowing this, researchers from the University of Southern Denmark decided to investigate the size of these hypothetical hidden particles. According to the team, dark matter could weigh more than 10 billion billion (10^9) times more than a proton.
Explanation:
If this is true, a single dark matter particle could weigh about 1 microgram, which is about one-third the mass of a human cell (a typical human cell weighs about 3.5 micrograms), and right under the threshold for a particle to become a black hole.
Answer:
Potassium selenide
Explanation:
Potassium selenide (K2Se)
Answer:
A fly hits a windshield of a truck.
Explanation:
newton's first law
14. C
15. B
16. D
17. D
18. I am not sure sorry.<span />
Answer:
a) 
b) 
Explanation:
From the question we are told that:
initial Concentration 
Final Concentration 
Final volume needs 
Generally the equation for Volume is mathematically given by
Therefore
The volume of buffer needed is
