What is frequency What is wavelength Calculate the frequency of s.pdf
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What is frequency? What is wavelength? Calculate the frequency of signals with wavelengths of 40 m, 5 m, and 8 cm. A commonly used frequency range is 902 to 928 MHz. Compute the bandwidth of this frequency range? Classify the following applications of electronic communications as simplex (one-way) or duplex (two-way). [Research Question] Solution Answer : 1.What is frequency ? Answer : 1.The number of cycles per unit of time is called frequency. 2.Frequency is measured in the Hertz units(Hz) 3.Frequency related the number of waves that pass a fixed place in a given amount of time. .............. 2.What is Wavelength ? Answer : 1.Wavelength is the Distance Between the identical points of two consecutive waves. 2.It represented by Greek letter (lambda) 3.Usually it is measured in meters. 4. =v/f where v=speed & f=frequency .....................
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![What is frequency? What is wavelength? Calculate the frequency of signals with wavelengths
of 40 m, 5 m, and 8 cm. A commonly used frequency range is 902 to 928 MHz. Compute the
bandwidth of this frequency range? Classify the following applications of electronic
communications as simplex (one-way) or duplex (two-way). [Research Question]
Solution
Answer :
1.What is frequency ?
Answer :
1.The number of cycles per unit of time is called frequency.
2.Frequency is measured in the Hertz units(Hz)
3.Frequency related the number of waves that pass a fixed place in a given amount of time.
..............
2.What is Wavelength ?
Answer :
1.Wavelength is the Distance Between the identical points of two consecutive waves.
2.It represented by Greek letter (lambda)
3.Usually it is measured in meters.
4. =v/f where v=speed & f=frequency
....................](https://image.slidesharecdn.com/whatisfrequencywhatiswavelengthcalculatethefrequencyofs-230706033728-b9cfb8a8/85/What-is-frequency-What-is-wavelength-Calculate-the-frequency-of-s-pdf-1-320.jpg)
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Figure 2.3 shows the effect of varying each of the three parameters
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Time vs. Distance
When the horizontal axis is time, as in Figure 2.3, graphs display the value of a signal at a given point in space as a function of time
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Q2: What are the two principles of Protocol Layering?
Q3: A sine wave is offset 1/4 cycle with respect to time 0. What is its phase in degrees and
radians?
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Solution
: 4) Infrared (IR) waves are :
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IR is thermal radiation emitted by objects near room temperature.
3) phase in degree :
1 complete cycle = 360 °
Then 1/4th cycle =1/4*360= 90°
Phase in radians :
1° =2/360 radians
Then 90° = 90*2/360 = /2 rad = 1.57 rad
1)
Simplex:All the data flow is unidirectional from transmitter to receiver.
Duplex communication is two way in that we have two types:
Half-duplex: communication may be likened to two way Either can may be used to transmit or
receive, but not at the same time
Fullduplex:Full-duplex communication is more like a true telephone, where two people can talk
at the same time and hear one another simultaneously.
1)
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bidirectional communication, we need to make each
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Institute (STI), this created an unethical work environment from the start. There are various
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Then 1/4th cycle =1/4*360= 90°
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Simplex:All the data flow is unidirectional from transmitter to receiver.
Duplex communication is two way in that we have two types:
Half-duplex: communication may be likened to two way Either can may be used to transmit or
receive, but not at the same time
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a) The first principle dictates that if we want
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b) The second principle that we need to follow in
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18. true
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20. True
21. false
22. True
23. True
24. True
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26.True
27. false
28. True
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30.True
31.false
32. false
33. True
34. false diploblastic
35. false
36 True
37 true
38 True
39 True
40 True
41 True
42 True
43 false
44 True
45 True
46 false
47 True
48 True
49. True
50. True (hormone).
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a).
Stem and Leaf plot for
light loss
stem unit =
10
leaf unit =
1
Frequency
Stem
Leaf
8
0
1 1 2 3 4 5 5 9
3
1
1 2 3
2
2
0 0
1
3
9
1
4
6
1
5
6
2
6
1 5
0
7
0
8
0
9
1
10
0
19
b).
Stem and Leaf plot for
light loss
stem unit =
10
leaf unit =
1
Frequency
Stem
Leaf
8
0
1 1 2 3 4 5 5 9
3
1
1 2 3
2
2
0 0
1
3
9
1
4
6
1
5
6
2
6
1 5
0
7
0
8
0
9
1
10
0
19
(eclipse are marked red)
c).
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Stem and Leaf plot for
light loss
stem unit =
10
leaf unit =
1
Frequency
Stem
Leaf
8
0
1 1 2 3 4 5 5 9
3
1
1 2 3
2
2
0 0
1
3
9
1
4
6
1
5
6
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1 5
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7
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19.
please show work A hospital reports that two patients have been admi.pdf
please show work A hospital reports that two patients have been admitted who have contracted
Crohn\'s disease. Suppose our experiment consists of observing whether each patient survives or
dies as a result of the disease. The simple events and probabilities of their occurrences arc shown
in the table (where 5 in the first position means that patient 1 survives, D in the first position
means that patient 1 dies, etc.).
Solution.
Person.java is givenSolutionSince I didnt have the implement.pdf
Person.java is given
Solution
Since I didn\'t have the implementation of the Disease class, I made some assumptions and wrote
the code accordingly.
public class Person{
public final String name;
protected int health;
protected Disease[] diseases;
public Person(String name, int health){
this.name = name;
this.health = health;
}
public int getHealth(){
return this.health;
}
public void addDisease(Disease dis){
if (!diseasePresent(dis)){
Disease[] updated_diseases[diseases.length+1] = new Disease[];
for (int i<0; i.
In java languageWhich of the following is falseA) A JPasswordFi.pdf
In java language
Which of the following is false?
A) A JPasswordField shows that characters are being entered, but hides the actual character with
an echo character.
B) Class JTextField extends JTextComponent; Class JPasswordField extends JTextField.
C) Both JTextFields and JPasswordFields are single-line areas in which the user can enter text
via the keyboard.
D) JPasswordFields generate events; JTextFields do not.
When the user presses Enter in a JPasswordField, the GUI component generates an ________,
which is processed by an object that implements the interface _______.
A) ActionEvent, ActionListener
B) ActionEvent, ActionEventListener
C) TextEvent, TextListener
D) TextEvent, TextEventListener
JPasswordField contains method ___________to obtain the data entered.
A) getInput
B) getPassword
C) getText
D) getEcho
A JRadioButton is different from a JCheckBox in that _________.
A) a JRadioButton is a subclass of JToggleButton, JCheckBox is not
B) normally several JRadioButtons are grouped together and are mutually exclusive
C) a JRadioButton is a type of button, JCheckBox is not
D) a JRadioButton is a state button, JCheckBox is not
The fact that class Graphics is abstract contributes to Java’s portability because:
A) drawing is performed differently on every platform that supports Java. A subclass of Graphics
must be created that uses the drawing capabilities of the current platform.
B) objects of non-abstract classes can only be instantiated on the Windows platform.
C) drawing should not be performed on non-Linux platforms.
D) Class Graphics is not abstract.
JSliders generate what type of event?
A) ActionEvents
B) ChangeEvents
C) WindowEvents
D) MouseEvents
Menus are attached to windows by calling method ____________.
A) addMenuBar
B) setJMenuBar
C) setMenu
D) addJMenuBar
Solution
B) Class JTextField extends JTextComponent; Class JPasswordField extends JTextField.
A) ActionEvent, ActionListener
B) getPassword
B) normally several JRadioButtons are grouped together and are mutually exclusive
A) drawing is performed differently on every platform that supports Java. A subclass of Graphics
must be created that uses the drawing capabilities of the current platform.
A) ActionEvents
B) setJMenuBar.
in a completely randomized (one-way) anova, with other things being .pdf
in a completely randomized (one-way) anova, with other things being equal as the sample means
get closer to each other, the probability of rejecting the null hypothesis decreases.
true
or false
Solution
TRUE
because when other things being equal as the sample means get closer to each other
its true that the probability of rejecting the Ho decreases.
I want you to go the Next Generation Sunshine State standards (http.pdf
I want you to go the Next Generation Sunshine State standards
(http://www.cpalms.org/Public/search/Standard) homepage. Choose a grade level (not K) and
look at all the LIFE SCIENCE standards that are found under each of the Big Idea/Supporting
Idea topics. To see all the standards, click on the bolded letters.
please provide the grade level and copy the standards
Summarize what you, as a teacher, would be responsible for teaching your students.
Discuss how this framework changed your thoughts on what you, as a teacher, would be
responsible for teaching your students for the standards?
Discuss how insect topics might be used to help illustrate each of those LIFE SCIENCE
standards for that grade level. What insect information do you think could fit with that standard?
How could insects be used in related lessons?
Solution
Summary of grade 7 according to my skills are :-
Cell Biology
1. All living organisms are composed of cells, from just one to many trillions, whose details
usually are visible only through a microscope. As a basis for understanding this concept:
a. Students know cells function similarly in all living organisms.
b. Students know the characteristics that distinguish plant cells from animal cells, including
chloroplasts and cell walls.
c. Students know the nucleus is the repository for genetic information in plant and animal cells.
d. Students know that mitochondria liberate energy for the work that cells do and that
chloroplasts capture sunlight energy for photosynthesis.
e. Students know cells divide to increase their numbers through a process of mitosis, which
results in two daughter cells with identical sets of chromosomes.
f. Students know that as multicellular organisms develop, their cells differentiate.
Genetics
2. A typical cell of any organism contains genetic instructions that specify its traits. Those traits
may be modified by environmental influences. As a basis for understanding this concept:
a. Students know the differences between the life cycles and reproduction methods of sexual and
asexual organisms.
b. Students know sexual reproduction produces offspring that inherit half their genes from each
parent.
c. Students know an inherited trait can be determined by one or more genes.
d. Students know plant and animal cells contain many thousands of different genes and typically
have two copies of every gene. The two copies (or alleles) of the gene may or may not be
identical, and one may be dominant in determining the phenotype while the other is recessive.
e. Students know DNA (deoxyribonucleic acid) is the genetic material of living organisms and is
located in the chromosomes of each cell.
Evolution
3. Biological evolution accounts for the diversity of species developed through gradual processes
over many generations. As a basis for understanding this concept:
a. Students know both genetic variation and environmental factors are causes of evolution and
diversity of organisms.
b. Students know the reasoning used by C.
How are macromolecules transported across the nuclear envelope Desc.pdf
How are macromolecules transported across the nuclear envelope? Describe the structure that
regulates nuclear membrane permeability.
Solution
The transportation of molecules in and out of the nucleus is controlled by the nuclear pore
complex(NPC). Small molecules move through the nuclear membrane with ease but for
macromolecules like proteins, RNA etc, they require an association with transportation factors
like importins, karyopherins and exportins.
Proteins that need to be carried into the nucleus have nuclear localization signals (NLS) which
bind to the importins. NLS is a sequence of Amino acids which act as a tag. They are mostly
hydrophilic but hydrophobic sequences have also been documented.
Nuclear Import:
Importins bind to the macromolecule to be transported in the cytoplasm itself. The complex then
interacts with the NPC and passes through the channel. Once inside the nucleus, it interacts with
Ran-GTP and the importin dissociates from the macromolecule it was carrying. Then the
importin-Ran-GTP complex is transported to the cytoplasm where it is separated from importin
by the Ran Binding Protein (RanBP). After being separated from importin, GTPase activating
protein(GAP) binds with Ran-GTP and induces hydrolysis of GTP to GDP. The Ran-GDP
produced binds with the nuclear transport factor(NUTF2) and then returns to the nucleoplasm.
Inside the nucleus, Ran-GDP interacts with guanine nucleotide exchange factor(GEF) which
replaces GDP with GTP and Ran-GTP is born again to repeat the cycle.
Nuclear Export:
In the nucleoplasm, exportin binds the macromolecule to be transported outside the nucleus and
Ran-GTP. The complex diffuses through the pore to the cytoplasm where it dissociates. Ran-
GTP binds to GAP and hydrolysis resulting in Ran-GDP. Ran-GDP is returned to the nucleus
where it exchanges its ligand for GTP.
Nuclear Pore:
The nuclear pore complex is made of proteins called nucleoporins. Around 50% of nucleoporins
contains solenoid protein domains (alpha or beta-propeller fold) and the rest might have both as
separate structural domains. Each NPS has about 456 individual protein molecules with 30
distinct nucleoproteins. These are highly flexible proteins that lack an ordered secondary
structure..
GeneticsBackground info About 30 of the Irish population has red.pdf
Genetics
Background info: About 30% of the Irish population has red hair and an inability to tan (MC1R).
This is due to an unusual variant of the pigment molecule melanin, called red melanin. Another
fairly common inherited condition is restless legs syndrome (RLS). It is characterized by an
irresistible urge to move ones legs and can interfere with sleep, leading to chronic sleep
deprivation. Both red melanin and restless leg syndrome are recessive, and their genes are on
different chromosomes.
Molly and Sean met in San Francisco and were drawn to each other because of their striking red
hair and very pale skin (both had parents who emigrated from Ireland). Neither has a family
history of restless leg syndrome. A few years later they married and had identical twins, Jerry
and Garcia, both are red heads and their legs are fine. Danny and Betty lived in San Francisco
too. They both had brown hair, and Danny suffers from restless leg syndrome. Their daughter,
Cali, has dark brown hair and her legs are fine. Jerry and Cali have a son, Henry. He has red hair,
does not tan and has restless leg syndrome. Complete the family tree by assigning the genotypes
based on the phenotypes described above (Hint: obviously you can get some information from
the phenotype of the individual. Further clues can be obtained from the phenotypes of the
progeny). Use R or r for restless leg syndrome alleles or an underscore if the allele could be
either R or r. For example, R_ would represent either Rr or RR. Use M or m for the red melanin
alleles, M_ would represent MM or Mm.
A) (1.5 point) Which individuals must be heterozygous for restless leg syndrome?
B) (1.5 point) Which individuals might be heterozygous for restless leg syndrome?
C) (1 point) Which individuals must be heterozygous for the red melanin gene?
D) (2 point) Garcia marries a woman who has restless leg syndrome and red hair, what is the
probability that a child of theirs will inherit both traits? Show your logic using probability, or
draw a Punnett square to show the potential genotypes of their progeny. M S D B C H
Solution
A) Cali, Jerry; Since Henry has restless leg syndrome (rr), both of his parents should carry atleast
one copy of r allele. So, Jerry and Cali are heterozygous for the restless leg syndrome.
B) Molly and Sean; Since Both Molly and Sean have fine legs but their son is heterozygous for
the syndrome, either of them is also heterozygous for the restless leg syndrome.
C) Since Henry has red hair and no tan tendency (homozygous for red melanin gene), both of
his parents should have one copy of red melanin gene. Jerry has red hair (mm) but Cali has dark
brown hair, so, Cali is heterozygous for the red melanin gene.
D) Genotype of woman to whom he is married = mmrr
promability of getting mm = mm (the woman) x mm (garcia)= 1
Probabiity of getting rr= Rr x rr = 1/4
Probability of Garcia to be Rr is 1/2.
Total probability of rr = 1/4 + 1/2= 3/4
Total probability of rrmm= 3/4 x 1= 3/4.
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