273m3
546m3
8193
10923
Correct answer is B
\(V_2 = V_1(B\theta + 1) = 273 (\frac{1}{373} \times 273 + 1)\)
= 546m3
20\(\alpha\)
200\(\alpha\)
2000\(\alpha\)
20000\(\alpha\)
Correct answer is A
\(L_2 - L_1 = \alpha_1 (\theta_2 - \theta_1) = \alpha \times 0.5 \times 40 = 20 \alpha\)
The design of the thermostat of an electric iron is based on the
emmision of electrons from metals when heated
increase in size of metals when heated
increase in the density of metals when heated
change in the mass of metals when heated
Correct answer is B
No explanation has been provided for this answer.
Which of the following statements about sex linked traits is not correct?
male inherit sex linked traits from thier fathers
sex linked traits are more common in males
females can be carriers beacuse they can be heterozygous for the trait
males are never carriers since they only recieve one sex chromosome
Correct answer is D
No explanation has been provided for this answer.
Which of the following statements best describes a test cross?
to determine the genotype of an individual whose phenotype is to be known
to determine the phenotype of an individual whose genotype is known
between the progeny of parents to ascertain external expressions
between two homozygous recessive individuals to confirm the genotypes
Correct answer is C
No explanation has been provided for this answer.