If you're lying on a raft and you notice the number of waves that go past the rest increases you also find that the distance bet
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Answer:
All 88 constellations are based on figures that originated in Greek and Middle Eastern mythology. (<em>Correct</em>)
The α star in a constellation is usually brighter than the β star. (<em>Correct</em>)
All stars are part of some constellation. (<em>Correct</em>)
The modern constellations have English names rather than Latin like the ancient ones. (<em>Correct</em>)
Explanation:
Constellations were grouped by different civilizations as mean to be oriented when they were making observations of the sky (they could see as maps of certain regions). Each constellation is an arrangement of several stars in a specific figure (animals, mythological characters and objects), things that were important for that civilization.
The letter is given to the brightest star in a constellation while the other letters of the Greek alphabet are assigned to the other stars that belong to that specific constellation according to their brightness. For example in the Orion constellation the brightest star is Betelgeuse so it is classified with an
;
to Rigel, the second in brightness and so on. That classification system was established by the astronomer Johann Bayer in 1603.
The modern constellations have English names, for example the constellations of Telescopium, Fornax, Sculptor, Chamaeleon, among others.
As constellations represent maps of different regions in the sky, any star will be related with them. For that reason is correct to say that all stars are part of some constellation.
Answer:
Explanation:
Let the allele for dark color be represented by "D" and the allele for light color be represented by "d"
Also D is dominant over d
Similarly, let the allele for obese trait in mice be represented by "O" and the allele for lean trait in mice be represented by "L"
Obese and lean exhibit incomplete dominance
Genotype of true breeding dark and obese mice be DDOO
Genotype of true-breeding lean and light mice is ddLL
Offspring from F1 cross -
DdOL
F2 cross is between DdOL * DdOL
DO DL dO dL
DO DDOO DDOL DdOO DdOL
DL DDOL DDLL DdOL DdLL
dO DdOO DdOL ddOO ddOL
dL DdOL DdLL ddOL ddLL
dark and intermediate between obese and lean offspring genotype –
2 DDOL, 4 DdOL
So total six out of sixteen offspring are dark and intermediate between obese and lean -
Mass of the block = 1.4 kg
Weight of the block = mg = 1.4 × 9.8 = 13.72 N
Normal force from the surface (N) = 13.72 N
Acceleration = 1.25 m/s^2
Let the coefficient of kinetic friction be μ
Friction force = μN
F(net) = ma
μmg = ma
μg = a
μ =
μ =
μ = 0.1275
Hence, the coefficient of kinetic friction is: μ = 0.1275