Other Physics Answers

Consider a semiconducting material. What will be the energy of electrons and holes that constitute

excitons? Let m = rest mass of free electron, ε = dielectric constant = 15, Δ = 1.5 eV. Determine the

temperature at which excitons will be formed?

Consider a semiconducting material. What will be the energy of electrons and holes that constitute

excitons? Let m = rest mass of free electron, ε = dielectric constant = 15, Δ = 1.5 eV. Determine the

temperature at which excitons will be formed?

TES I Given that B is for bent little finger and b is for straight little finger while N is for 

nearsightedness and n is for normal vision.

1. What is the phenotype of the mother having BbNn genotype?

2. Give the phenotype of the father having bbNN genotype.

3. Give the possible genotype of the offspring from the couple.

4. What are the possible phenotypes of the offspring of the couple?

5. Is there a possibility that a child with a straight little finger and normal vision is 

to produce from the couple?

TEST II

Direction: Choose the letter of the BEST answer.

1. What Mendelian principle states that in a heterozygous gene pair, the dominant 

trait will mask the recessive trait?

a. Dominance

c. Codominance

b. Segregation

d. Independent Assortment

Derive Newton’ s second law in three dimension using the Lagrangian method.[6]

An iceberg is a chunk of freshwater ice that has broken off from an ice cap, 

such as those that cover Greenland and Antarctica, or from a glacier at the 

edge of the sea. (More than three-quarters of the world’s fresh water is in the 

form of ice). Find the proportion of the volume of an iceberg that is 

submerged. Note: use the corresponding densities for ice and water

Sketch a graph of velocity against time of fall of the steel ball and explain it's nature

An inductor of 250 mH has a reactance of 1450 Ω. What is the frequency of the current in the inductor? 

what is the probability of sodium crystal in three dimensional at a given energy level when the temperature is 300K

A 4.4 kg block 2.7 m off the ground sits at the top of a ramp. It is held and let go at the top of the ramp until it reaches the bottom where it is traveling 5.0 m/s. What is the power of friction on the block if it took the block 2.8 s to make it to the bottom of the ramp

An arrow is shot in an arc to hit a target that is 5.2 m above the ground. If the arrow leaves the bow 0.89 m above the ground travelling 46 m/s, how fast is it travelling when it hits the target?