Hana

This page lists questions and answers that were posted by visitors named Hana.

Questions

The following questions were asked by visitors named Hana.

predict how many sodium ions would combine with: (a) a chlorine ion. (b) a carbonate ion. (c) a phosphate ion.
17 years ago
I need help with this question and would really apprecitae it the help What are three feutures of a lyric poem? Explain how "Song Concerning Dream of the thunderbirds" uses these features
15 years ago
Impact of California Water Wars on the Owens Valley?
15 years ago
why can't you use Carbon to extract Aluminium? and How do you extract Aluminium using elecrolysis?
14 years ago
Relate the Fourth Principle of Ecosystem Sustainability to: a. endangered species:, b. agriculture:, c. biotechnology:, d. medicine:
13 years ago
Can someone please help me with this question because when I post this question earlier, some lady or tutor just gave me some links on where to find the answer and I had already did that and still couldn't find an answer? Here it is. Relate the Fourth Pri...
13 years ago
Relate the Fourth Principle of Ecosystem Sustainability to: a. endangered species
13 years ago
Relate the Fourth Principle of Ecosystem Sustainability to: c. biotechnology:
13 years ago
Relate the Fourth Principle of Ecosystem Sustainability to: d. medicine:
13 years ago
How can I relate the Fourth Principle of Ecosystem Sustainability to: c. biotechnology:
13 years ago
How can I relate the Fourth Principle of Ecosystem Sustainability to: d. medicine:
13 years ago
Ba(OH)2 is a strong electrolyte. Determine the concentration of each of the individual ions in a 0.700 M Ba(OH)2 solution. I know that Ba(OH)2 -> Ba + 2OH But how do I determine the concentrations? I feel like I am making this more complicated than need b...
12 years ago
Which of the following will be more soluble in an acidic solution than in pure water? SrSO4 CsClO4 CuCN Ni(OH)2 AgCl Please help explain why! I've tried submitting the ones that are insoluble in water and it was wrong. I know it has something to do with b...
12 years ago
To determine liability one must figure out who is legally
12 years ago
I need to check my answers for exams number 00385300 working with school-age children
12 years ago
One can encourage children to engage in sociodramatic play by
12 years ago
A2006 survey stated that youngsters ages 12-17 who were left home three or more days
12 years ago
The volume of the rectangular prism is 280 cubic cm. Its base has the area of 40 sq. cm. What is the volume of the pyramid inside the prism???
11 years ago
The volume of the rectangular prism is 280 cubic cm. Its base has the area of 40 sq. cm. What is the volume of the pyramid inside the prism?
11 years ago
Model 28% on a 5 x 5 grid. a. a 5 x 5 grid with 4 blocks filled in. b. a 5 x 5 grid with 5 blocks filled in. c. a 5 x 5 grid with 7 blocks filled in. d. a 5 x 5 grid with 20 blocks filled in. I don't know what to do, can someone give me a step-by-step pro...
9 years ago
A 10-ft,25lb seesaw is balanced by a little girl with a weight of 50lbs and her father with a weight of 200lbs at opposite ends. How far from the seesaw's center of mass must the fulcrum be placed?
9 years ago
A length of metal pipe has a circumference of 2.5 inches. the pipe is 1/16 inches thick. a gas fitter needs to know the inside diameter of the pipe to calculate the gas pressure. What is the total diameter of pipe including metal? how much of the diameter...
8 years ago
The product of two positive integers plus their sum is 95. The integers are relatively prime, and each is less than 20. What is the sum of the two integers?
8 years ago
A girl is sitting on a sled. She is pushed by a spring that was compressed 0.8m. The spring constant is 2500 N/m. After moving 2.5 m across a surface that applies 60 n of friction, the girl and the sled slid up a frictionless hill. How high do the girl an...
5 years ago
Which system of inequalities does the graph represents?
4 years ago
what is 1000,000,\4000
3 years ago
There are between 50 and 60 wggs in a basket. When Mohammed counts by 3's,there are 2 eggs left over. When he counts 5's there are 4 left over. How many eggs are there in the basket?
3 years ago
A wave represented by X=0.4cos(8t-y÷2),where x and y are in meters t in second. Calculate the speed of the wave?
2 years ago
The equation of the wave is given by y=10^-4sin(100t-x÷10)m, find the velocity of the wave?
2 years ago
When the waves Y1=asinwt and Y2=acoswt are superimposed, find the resultant amplitude?
2 years ago
A whistle giving out 450hz approaches stationary observe at a speed of 33m/s. What is the frequency heard by the observer ? ( velocity of sound in air=330m/s)
2 years ago
Which of the ff statement is incorrect? A.sound travels in a strained line B.sound travel as a wave C.sound is a form of energy D.sound travels faster in vacuum than in air
2 years ago
Equation of stationary wave is given by 10sinπ/2cos20πt. Find the distance between two consecutive nodes?
2 years ago
In two separate set-ups of Young's double slit experiment using light of the same wavelength , fringes of equal width are observed .if ratio of slit separation in two is 2:3,find the ratio of the distance between source and screen placed in the two setups...
2 years ago
Wave length of a monochromatic length light us 500Angstrom. Find the wave number?
2 years ago
The device which produced highly coherent source is A.Fresnel bi prism B.laser C.Young's double slit D. Lloyd's mirror
2 years ago
A driver of a car travelling with a speed 30m/s towards a hill souns a horn of frequency 600Hz.if the velocity of sound in air is 330m/s.calculate the frequency of reflected sound as heard by the driver?
2 years ago
A string of mass 0.2kg/m has length l = 0.6m. It is fixed at both ends and stretched such that it has a tension of segments with amplitude =0.5cm.Find frequency of the wave?
2 years ago
In Young's double slit experiment carries out with light of wavelength =5000Angstrom, the distance between the slit us 0.2mm and the screen is at 200cm from the slit. The central maximum is at x=0.the third maximum (taking the central maximum as zeroth ma...
2 years ago
The fringe width at a distance of 50cm from the slits in Young's experiment for light of wavelength 6000Angstrom is 0.048cm. Find the fringe width at the same distance for wavelength=5000aAngstrom?
2 years ago
Two slits are made 1mm apart and the screen is placed 1m away. What is the fringes separation when blue -green light of wavelength 500nm is use?
2 years ago
The fringe width at a distance of 50cm from the slits in Yong's experiment for light of wavelength 6000Angstrom is 0.048cm.find the fringe wide at the same distance for wavelength=5000Angstrom?
2 years ago
In Young's double slit experiment, the slit are separated by 0.28mm and the screen is placed 1.4m away . the distance between the central bright fringes is measured to be 1.2cm .determine the wavelength of light used in the experiment?
2 years ago
Prove that using X(t)=As in( at+¢) will produce the same results for the period for the oscillations of a mass and a spring. Why do you think the cosine function was chosen?
2 years ago
A 0.500kg mass suspended from a spring oscillates with a period if 1.50s. How much mass must be added to the object to change the period to 2.00s?
2 years ago
When an 80.0 kg man stands on a pogo stick , the spring is compressed 0.120m . A. What is the force constant of the spring B.will the spring be compressed more when he hops down the road?
2 years ago
If a car's has a suspension system with a force constant of 5.00×10^4N/m, how much energy must the car's shocks remove to dampen an oscillation starting with maximum displacement of 0.0750m?
2 years ago
The activity of radioactive substance reduced from 2000Bq to 1000Bq in10^6sec.what is the decay constant
2 years ago
The half - life of radium-224 is 3.5 days .what fraction of the sample remain undecaye after fourteen days
2 years ago
Complete the ff equation, which represented a nuclear fission reaction .what is the particle represented by 235U+0^1n=b+139Cs+2x+energy X?
2 years ago
The activity of aradioactive source falls to one sixteenth of originally value in 32 minutes. What is the hali- life
2 years ago
Describe about the emissions of radioactive isotopes
2 years ago
Dose alpha particles are positive charged and less penetrating than beta and gamm
2 years ago
A common unit of energy in atomit physics is
2 years ago
The maximum kinetic energy of photoelectrons emitted from a surface when a photons of energy 6 EV fall on it is 4 EV.the stopping potential in volts is
2 years ago
When the intensity of light shining on metal increase
2 years ago
Photons always propagate With speed c. but light appears to travel at a speed different from c in dense media .how can we account for this phenomenon
2 years ago
The activity of radioactive substance reduced from 2000Bq to 1000Bq in 10^6sec.what is the decay constant
2 years ago
The activity of radioactive source falls to one sixteenth of originally value in 32 minutes.what is the half life,in minutes, of this decay process
2 years ago
Completed the ff equation, which represented a nuclear fission reaction what is the particle represented by x? 235U+O1n=b+139Cs+2x+energy?
2 years ago
Nickel has a work function if 5.0eV A. What is the maximum kinetic energy of photoelectrons knocked out of nickel surface by a 1mW ultraviolet sources at 2000A?
2 years ago
Find the Broglie wavelength of electron with a velocity of 10^5m/s
2 years ago
Determine the energy of electron of hydrogen atom at n=2
2 years ago
Calculate the binding energy per nucleons, in MeV, for 3/2with a mass of 3.016029u.
2 years ago
If the number of radioactive nuclei present is cut in half ,how does the activity change
2 years ago
The half life of 24Na is 15.0hr . how long does it take for 80 percent of a sample nuclide to decay
2 years ago
What fraction of sample is left after A. 3half- live B. 5half-live
2 years ago
A one gram if 226 Ra has an activity of nearly 1Cl.determine the half life of 226Ra. The half life of 238U is 4.5×109year . what is the decay constant? Find the activity of 1g,of 238U
2 years ago
The half of 14C isotope is 5730 year .if a sample of 14C contains 10^22 nuclei , what is the activity of the sample
2 years ago
In a photoelectric experiment in which monochromatic light and sodium cathode are used ,we find a stopping potential of 1.8V for l =300/Angstrom and 0.82V for l =4000angstrom form these data determine A. Value of Plank's constant B.work function of sodium...
2 years ago
A piece of rope is 5.4 meters long. Art cuts off a piece that is 2.61 meters long. How much of the rope is left?
2 years ago
A spool of lanyard is 20 yards long. If it is cut into pieces that are each 1.25 yards long, how many pieces of lanyard will there be?
2 years ago
Which statement best describes a polygenic trait?(1 point) Responses A polygenic trait is controlled by multiple genes and influenced by the environment. A polygenic trait is controlled by multiple genes and influenced by the environment. A polygenic trai...
1 year ago
An animals weight is determined by:(1 point) Responses multiple genes and environmental factors multiple genes and environmental factors multiple genes only multiple genes only both a single gene and environmental factors both a single gene and environmen...
1 year ago
Which statement best describes trait distribution?(1 point) Responses Distribution describes the different traits that are found in a population. Distribution describes the different traits that are found in a population. Distribution describes how indivi...
1 year ago
Use the table to answer the following question. Grade 10-12 Height Range 55-59 60-64 65-69 70-74 Frequency 4 9 8 4 A statistician collects the following height data in inches for a school district. The statistician says that it is a normal distribution. H...
1 year ago
Analyzing Data About Traits Quick Check 5 of 55 of 5 Items Question Use the graph to answer the question. An illustration shows a bell-shaped graph.Height in humans is a polygenic trait with a distribution similar to the graph shown. Which is true concern...
1 year ago
Match the term to the description.(3 points) Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left m...
1 year ago
If two lines are always the same distance apart and never intersect, what are they called?(1 point) Responses Parallel Lines Parallel Lines Intersecting Lines Intersecting Lines Perpendicular Lines Perpendicular Lines Horizontal Lines
1 year ago
Determine whether the pair of lines appear to be parallel or perpendicular. (1 point) Responses The lines are perpendicular because they intersect at a right angle. The lines are perpendicular because they intersect at a right angle. The lines are paralle...
1 year ago
Describe the relationship between the lines. (1 point) Responses The lines intersect to form a 45° angle. The lines intersect to form a 45 degrees angle. The lines intersect to form a 90° angle. The lines intersect to form a 90 degrees angle. The lines in...
1 year ago
To construct the line perpendicular to line m at point P, what should be done first?(1 point) Responses Construct two points on m that are on the left side of P. Label the points A and B. Construct two points on m that are on the left side of P. Label the...
1 year ago
What is a poem’s meter?(1 point) Responses a line in a poem that repeats multiple times a line in a poem that repeats multiple times the way a poem is organized the way a poem is organized the number of beats or stressed syllables per line the number of b...
1 year ago
Which of the following would be included in a description of a poem’s structure? Select the two correct answers.(1 point) Responses style of refrains style of refrains type of poem type of poem description of speaker description of speaker meter meter aut...
1 year ago
A poem that consists of 14 lines and uses a rhyme scheme of ABAB CDCD EFEF GG is most likely what poetic structure?(1 point) Responses a sonnet a sonnet a rondeau poem a rondeau poem a ballad a ballad a litany poem
1 year ago
What is a poem’s structure?(1 point) Responses how a poem is organized, including rhymes, rhythm, number of lines, and more how a poem is organized, including rhymes, rhythm, number of lines, and more the number of times a refrain repeats in a poem the nu...
1 year ago
How do poets choose what structure to use for a poem?(1 point) Responses based on what will help conceal meaning from the reader based on what will help conceal meaning from the reader based on the message they want to convey based on the message they wan...
1 year ago
What is the difference between assonance and consonance?(1 point) Responses Assonance relates to vowel sounds while consonance relates consonant sounds. Assonance relates to vowel sounds while consonance relates consonant sounds. Consonance is the rhyme s...
1 year ago
What is the name for the pattern of rhyming words at the end of each line in a poem?(1 point) Responses enjambment enjambment assonance assonance rhyme scheme rhyme scheme poetic structure
1 year ago
Different poetic elements describe the repetition of sounds. is heard when two or more words in a line or short section begin with the same sound. describes when the same consonant sound appears anywhere in several words in a line or short section of a te...
1 year ago
A poem’s Response area, such as diction and enjambment, create the Response area, or overall atmosphere of the poem.
1 year ago
A poem’s , such as diction and enjambment, create the , or overall atmosphere of the poem.
1 year ago
Hope is the thing with feathers by Emily Dickinson “Hope” is the thing with feathers - That perches in the soul - And sings the tune without the words - And never stops - at all - And sweetest - in the Gale - is heard - And sore must be the storm - That c...
1 year ago
To construct the line perpendicular to line m at point P, what should be done first?(1 point) Responses Construct two points on m that are on the left side of P. Label the points A and B. Construct two points on m that are on the left side of P. Label the...
1 year ago
To construct the line perpendicular to line m at point P, first construct two points on m that are equidistant from P and label the points A and B. What is the next step that should be taken?(1 point) Responses Set the opening of the compass greater than...
1 year ago
Which of the following figures shows the construction of a line perpendicular to m at point P?
1 year ago
Given line m and point P on line m, which of the following statements is true?(1 point) Responses When constructing a line through P that is perpendicular to m, only two arcs are needed. When constructing a line through P that is perpendicular to m, only...
1 year ago
To construct the line perpendicular to line m at point P, first construct two points on m that are equidistant from P and label the points A and B. Then set the opening of the compass greater than 1/2 AB. With the compass tip on A, draw an arc above point...
1 year ago
Assume that AB¯¯¯¯¯¯¯¯ has already been constructed. What is the first step to construct the perpendicular bisector of AB¯¯¯¯¯¯¯¯ ?(1 point) Responses Open the compass to a quarter of the length of AB¯¯¯¯¯¯¯¯ and draw a long arc through point A. Open the...
1 year ago
Assume AB¯¯¯¯¯¯¯¯ haws already been constructed. To construct the perpendicular bisector of AB, first put the compass on point A and draw a long arc. Be sure the opening is greater than half of the length of AB¯¯¯¯¯¯¯¯ . With the same compass setting, put...
1 year ago

Answers

The following answers were posted by visitors named Hana.