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n a game of gambling a player tossesa fair coin. Ifit falls head,he wins 100 cedis and if it
falls tail he loss 100 cedis. Aplayer with 800 cedis tossesthe coin six times. What is the
probability that he will be left with 600 cedis?
How many molecules of hydrochloric acid (HCI) are required to react with 10.0
grams of zinc (Zn)?
- Merpeople can be found if you visit Black Lake on the grounds of Hogwarts. Tail colour in merpeople exhibits incomplete dominance. Red tails and white tails are both homozygous traits.
- Indicate the genotypes for white tails and red tails. (2 marks)
- What would a mermaid’s tail look like if she was heterozygous for red and white alleles? (1 mark)
- Use a Punnett square to illustrate the cross between a merman with a white tail and a mermaid that is heterozygous for tail colour. Indicate the phenotypic ratio for their offspring. (3 marks)
A 15-kg rock is dropped from rest on the earth and reaches the ground in 1.75 s. When it is
dropped from the same height on Saturn’s satellite Enceladus, it reaches the ground in 18.6 s.
(a) What is the acceleration due to gravity on Enceladus? (b) How long will it take for the
rock to reach the ground on Earth if it was released 100 m above the Earth’s surface? (c) in
Enceladus?
A plant that produces white flowers is crossed with a plant that produces purple flowers.
Briefly explain what Incomplete dominance and Codominance conditions are. (1)
Describe the phenotype of the heterozygous offspring if the inheritance patterns follow an (2)
Incomplete dominance.Codominance.
Illustration and solution required- please use the dorsal portion.
12-14. Two like charges of charge +10 nC are placed at the two corners of an equilateral triangle of sice 3cm. What is the magnitude of the total potential at the third corner?
15-17. A point charge q = 2.00μC is located at the origin. Find the electric potential due to this charge at point x = 4.0 m.
State and explain what happens to the alpha particle on entering the region of space with the uniform electric field?
7. Carbon absorbs energy at a wavelength of 150.0 nm. The total amount of energy emitted by a carbon sample is 1.98 x 105 J. Calculate the number of carbon atoms present in the sample, assuming that each atom emits one photon.
The specific heat capacity for silver is 0.24 J/goC. Calculate the energy required to raise the temperature of 150.0 g Ag from 273 K to 298 K.
From the knowledge that CV, the molar specific heat at constant volume, for a gas in a container is 5.0R, calculate the ratio of the speed of sound in that gas to the rms speed of the molecules,
for gas temperature T.
