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March 30, 2017

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Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

SCIENCE-CHEMISTRY
Find the mass (kg) of a metallic block in the form of a cube 30cm on the side,if its density is 5.6kg/L.
Thursday, December 1, 2016 by Ericca

Science
The engine of a motorcycle can produce a maximum acceleration 5 meters per second square. Its brakes can produce a maximum retardation 10meters per second square. What is the minimum time in which it can cover a distanceof 1.5km
Thursday, December 1, 2016 by Kunal

Visual Basic Programming in Visual Studio 2015
I have an application program to submit help tickets. The problem is the error messages are only supposed to pop up when someone doesn't format it correctly but it either don't or comes up after typing when there is no errors. The next issue is my msgbox for lblvalidate doesn'...
Thursday, December 1, 2016 by Jane

Science
Solution of question The work done by the heart if it's beats 72times per minute
Thursday, December 1, 2016 by Muskaan Sachdev a

science
1.A scientific law A)can have only one known exception B)can have any number of exceptions as long as we know about them ** C)might have many exceptions we don’t know about D)has no exceptions 2.Sunspots are A) solar storms that can interfere with communication satellites...
Thursday, December 1, 2016 by katrina

computer programming
Write a c++ code to vertically mirror an image.
Wednesday, November 30, 2016 by Anonymous

Science
If you place a grape in a large amount of sugar water, what will happen to it and why?
Wednesday, November 30, 2016 by Owen

science
1.A scientific law A)can have only one known exception B)can have any number of exceptions as long as we know about them C)might have many exceptions we don’t know about D)has no exceptions*** 2.Sunspots are A) solar storms that can interfere with communication satellites B...
Wednesday, November 30, 2016 by katrina

Science chemistry please help
Determine the number of moles of oxygen in 1 mol of dinitrogen tetraoxide
Wednesday, November 30, 2016 by Farhin

Science chemistry
Determine the number of moles of oxygen in 1 mol of dinitrogen tetraoxide N2O4= N 2×14.01g/mol= 28.02g/mol O 4×16.00g/mol= 64.00g/mol N2O4= 92.02g/mol I can't get the right formula to solve the rest. Please help and thank you
Wednesday, November 30, 2016 by Farhin

science
I'm stuck on the following questions 1)The geocentric model of the universe states that the Earth is the center of the universe. This is an example of a A)scientific conclusion B)pseudoscience C)scientific law*** D)Scientific method Through process of elimination i know its ...
Wednesday, November 30, 2016 by katrina

Science
Sperm and eggs are found in different parts of plant. Explain why it is important for these cells to unite and describe some factors in a environment that help unite them?
Wednesday, November 30, 2016 by regina

science
Take 1mL of 1M NaCl solution, and add 9mL of water. Then take 10microL of the diluted solution and add 40microL of water. What is the dilution? And what is the final concentration of NaCl? So I see how this is a 2:1 dilution, but I am having a hard time figuring out the final ...
Wednesday, November 30, 2016 by Alli

Science
which of the following statements is true as the moon goes from new moon to full moon phase? (2 points) A:We see more of the lighted side of the moon B:We see less of the lighted side of the moon C:The time it takes to go from new moon to full moon is 2 weeks D:The time it ...
Wednesday, November 30, 2016 by Kali

science
most of the life of a cell is spent in a period of growth and development called_____.
Wednesday, November 30, 2016 by audrey

Science physics
A ship is heading north at 15km/h in a tide moving at 6km/h westward. Determine the magnitude and direction of the resultant velocity of the ship.
Wednesday, November 30, 2016 by Anon

Science Physics
Derive an expression for kinetic energy of an object mass m moving with uniform velcoity v what happens to the kinetic energy of a body if its velcoity is halved
Wednesday, November 30, 2016 by Danial

Science, physics
A ship is heading north at 15km/h in a tide moving at 6km/h westward. Determine the magnitude and direction of the resultant velocity of the ship. I can't answer it because I don't get the formula. And please give me the formula. I need the answer later. I'll wait! Thankyou in...
Wednesday, November 30, 2016 by Zablanity

Science
Derive an expression for kinetic energy of an object mass m moving with uniform velcoity v what happens to the kinetic energy of a body if its velcoity is halved?
Wednesday, November 30, 2016 by Danial

science
The apparent weight of cube in liquid with relatibe density 0.9
Wednesday, November 30, 2016 by rajat

Engineering science
A steel cylinder contains an ideal gas at 27°C. The gauge pressure is 140kPa. If the temperature of the container increases to 79°C, what is the new gauge pressure?
Wednesday, November 30, 2016 by Shah

Science
It takes a force of 22 N to push a 10 kg box horizontally with a constant velocity over concrete. What is the coefficient of kinetic friction between the box and the concrete? My guess is 10 kg/22 N = 0.4545 but I'm not sure if you have to take in account vertical forces or if...
Wednesday, November 30, 2016 by Fred

science
A ray of light travelling in air strike the water surface at an angle of 40° calculate the refractive index of water if angle of refraction is 29°
Wednesday, November 30, 2016 by Shivani singh

cal
Monthly sales, in thousands, of a new laptop computer grow according to the model N(t)=4.7te^-0.3t where t is the number after introduction. Determine the point of diminishing returns and interpret your answer.
Wednesday, November 30, 2016 by lis

Science
The lung is to the respiratory system as the ____ is to the integumentary system. A) heart B) kidney C)hand D)brain B
Wednesday, November 30, 2016 by Hayden

Science
A new geosynchronous satellite needs an orbit of 35.7 km . The mass of the Earth is 5.97x 10^24 Kg and the radius of Earth 6.4 x 10^3 km. The mass of the satellite is 200 Kg. What velocity will it need to achieve that orbit
Tuesday, November 29, 2016 by Boberto

science
what does the slope of a electric force vs. 1/R^2 graph represent?
Tuesday, November 29, 2016 by jon snow

Science
A new geosynchronous satellite needs an orbit of 35.7 km . The mass of the Earth is 5.97x 10^24 Kg and the radius of Earth 6.4 x 10^3 km. The mass of the satellite is 200 Kg. What velocity will it need to achieve that orbit?
Tuesday, November 29, 2016 by Boberto

Science
The Sun exerts a gravitational force of 3.56 x 10^22 N on Earth. The mass of the Sun is 2.0 x 10^30 kg. The mass of the Earth is 6.0 x 10^24 kg. If we assume the Earth has a circular orbit of 1.5 x 10^11 m, what is the velocity needed for Earth to remain in orbit?
Tuesday, November 29, 2016 by Boberto

Science
A car completes a half of a circular track that has a radius of 10 m. What is the distance traveled by the car? What is the displacement of the car?
Tuesday, November 29, 2016 by Rose

Science , Biology
Which creatures live on the energy of the Sun? Angel fish Suquirrel fish Sea urchins Porcupine fish Octopus
Tuesday, November 29, 2016 by AM

Science , Biology
Is Atlantic spadefish Nocturnal or Diurnal? Carnivore, Herbivore, Autotroph? Is Porcupine fish Carnivore, Herbivore, Autotroph? Please give me informationsss!!
Tuesday, November 29, 2016 by A.

science
In the following equation , 417.96 g of Bi reacts completely with 200 g of F . How many grams of BIF (to the third power) are formed?
Tuesday, November 29, 2016 by chels

Science
Take 1mL of 1M NaCl solution, and add 9mL of water. Then take 10microL of the diluted solution and add 40microL of water. What is the dilution? And what is the final concentration of NaCl? So I see how this is a 2:1 dilution, but I am having a hard time figuring out the final ...
Tuesday, November 29, 2016 by Alli

science (ASAP)
what does the notation TT mean to genetics
Tuesday, November 29, 2016 by Miranda

Science
What is the result of c6h5ch2cooh +H^+/KMnO4
Tuesday, November 29, 2016 by Priya

statistics
John runs a computer software store. Yesterday he counted 133 people who walked by the store, 66 of whom came into the store. Of the 66, only 24 bought something in the store.
Tuesday, November 29, 2016 by G

science
in evolutionaly terms, RNA is though to have preceded proteins and DNA.
Tuesday, November 29, 2016 by qq

science
A car is moving at a speed of 72 km/hr. The radius of its wheels is 0.25m. If the wheels are stopped in 20 rotation by applying brakes, then angular retardation produced by the brakes is:
Tuesday, November 29, 2016 by Nancy

Science/Biology/Health and Social Care
What would happen if the body didn't have any energy? I have looked at Anabolism and Catabolism but I am overall, stuck answering this fully.
Tuesday, November 29, 2016 by Jess

Science
What is the volume of the rock if the water level rises to the 120 ML mark
Tuesday, November 29, 2016 by Fidel

Physics, Math, Science
A 56 kg student is standing atop a spring in an elevator that is accelerating upward at 3.5 m/s^2. The spring constant is 2300 N/m. By how much is the spring compressed? I'm not exactly sure how to approach this problem, much less solve it. The acceleration threw me off, as my...
Monday, November 28, 2016 by Erik

Science
Direction: Place a big mug, a plastic drinking glass and an empty glass bottle on the table with the big mug at the center, the drinking glass at the edge of the table, and the bottle anywhere on the table. With the force , shake the table and observe what happens to the mug, ...
Monday, November 28, 2016 by Liv

Science
What is a substance that absorbs and reflects diffrent wavelenghts of light?
Monday, November 28, 2016 by Emma R.

Science
What is When digital information is superimposed on a physical environment (two words)
Monday, November 28, 2016 by Emma R.

science
How many drop (1drop=0.05ml) of 0.20M potassium iodide must we add to 0.010M Pb(NO3)2 to get precipitation of lead iodide to start if Ksp of lead iodide is 7.1x10^-9.
Monday, November 28, 2016 by Stephen

Science
What is a scientist who studies humans???
Monday, November 28, 2016 by Emma R.

Science
What is When digital information is superimposed on a physical environment (two words)
Monday, November 28, 2016 by Emma

Science
What is a substance that absorbs and reflects diffrent wavelenghts of light?
Monday, November 28, 2016 by Gracie K.

science
A steel rod of length 60 cm and radius 2.5 mm hangs vertically. If a mass of 2.5 kg is attached to the end of the rod, calculate the increase in the length of the rod
Monday, November 28, 2016 by david

Pythagorean Theorem 8th Grade
Fern wants to get a computer monitor for her desk which can hold a 21 inch monitor. She's found a monitor that's 15 inches wide and 12 inches long. Will the computer monitor fit into her desk? (I've already got the answer which is 19.21 inches I need to know the steps on how ...
Monday, November 28, 2016 by Music Lover 14

Science
Why is photosynthesis an example of a chemical reaction, and why is it classified as endothermic? Help please
Monday, November 28, 2016 by Jess

science
When a ray of light travels from air to glass and it strikes the surface of separation at 90 degree,then what
Monday, November 28, 2016 by vinay mayavanshi

SCIENCE
What is the purpose of wildlife corridors build under roads? 1) habitat fragmentation 2) habitat loss 3) habitat competition 4) habitat creation 2 ?
Monday, November 28, 2016 by Evelyn

SCIENCE
Which of the following would be most likely lead to increased biodiversity? 1) clear cutting 2) oil drilling 3) national park planning 4) farming I thing 3
Monday, November 28, 2016 by Jaden

Science
a person watching through a window of an apartment sees a ball that rise vertically up then vertically down for a total time of0.5s.if the hieght of the window is 2m ,find the max hieght reached by ball above the window
Monday, November 28, 2016 by Tttt

Science
Nh4hs dissociates in a vessel at temp T K in the presence of 0.5 atm nh3. At equilibrium the pressure due to h2s is 1.5 atm.In a vessel V2 ( initially evacuated) the solid dissociates at T K.The total pressure at equilibrium in vessel V2 is P.and the weight ratio of nh3 and ...
Monday, November 28, 2016 by Preeti

PHYS-041-Keiler: Physical Science
A prehistoric bone is found at an excavation site. If the bone originally contained 22 kg of carbon−14, how much would remain after 11,400 years?
Sunday, November 27, 2016 by gorje

science
In The Darkest Part Of The Mansion, Where The Winds Are Set To High, A Man Fears His Presents, Where The Cotton Lies, Where Am I?
Sunday, November 27, 2016 by Sarah

science
solubility of borax in 300 ml of water.
Sunday, November 27, 2016 by popcorn

Environmental Science please help
(10 Environmental Science questions. Please help correct my incorrect answers) 1. A prion is an infectious, self-reproducing protein structure. (True)<---My Answer False 2. As one organism eats another, toxins can be spread throughout the food chain. (True)<---My Answer ...
Sunday, November 27, 2016 by GummyBears18

Science , Biology
Cretaceous extinction... The evidence tells you that “overwhelming evidence suggests that the extinction was caused by a 10-km-diameter asteroid that struck Earth.” Suggest at least three lines of evidence that might have led scientists to this conclusion. Could you please...
Sunday, November 27, 2016 by Woo

Computer Science (please help )
Prove that if A is any language over the alphabet {0}, then A* is regular.
Sunday, November 27, 2016 by Daniel

maths
in a class of 40 children 3/8 likes english,2/5 likes maths and 3/4 like science .find the number of children who like each subject.
Sunday, November 27, 2016 by sri

Science
One ship, sailing east with a speed of 7.5 m/s, passes a certain point at 8A.Mand a second ship sailing north at the same speed, passed the same point at 9:30 A.M. At What time are they closest together and what is the distance between them then?
Saturday, November 26, 2016 by Vector

science
What is the average speed of a race cow that travels 60 meters in 20 seconds?
Saturday, November 26, 2016 by Anonymous

science
A system contains 0.15 m3 of a gas at a pressure of 3.8 bar and 150 C. It is expanded adiabatically till the pressure falls to 1 bar. The gas is then heated at a constant pressure till its change in enthalpy is 70 kJ. Determine the total work done. 
Saturday, November 26, 2016 by seeoo

Science
The radius of solid gold sphere is 0.5 cm ,if density of gold is 1.95*10qo power 8 kg/meter cube .Calculate its mass
Saturday, November 26, 2016 by Akriri

science
Provide at least three examples of real-world applications in use or in development with reliable references.
Saturday, November 26, 2016 by Angie

science
Discuss current or future applications of nanotechnology in fields such as medicine, engineering, space exploration, fuel cell development, air and water purification, and agriculture.
Saturday, November 26, 2016 by Angie

science
Discuss how materials science has advanced to the stage where materials can be engineered to fit a specific purpose.
Saturday, November 26, 2016 by Angie

science
Provide an example of an application or object that is made of materials specifically engineered for that purpose.
Saturday, November 26, 2016 by Angie

science
Discuss scientific and technical concepts related to materials science for plastics
Saturday, November 26, 2016 by Angie

science
Molecular reactions involved when mohr'salt is provided to find the strength, molarity of KMnO4
Saturday, November 26, 2016 by sanvi

science
An electron in the hydrogen atom makes a transition,an energy state of principal quantom numbers ni to n2 state if the photon emitted has a wavelength 434nm what is the value of ni
Saturday, November 26, 2016 by peace bethel

Earth Science
PLEASE HELP! URGENT! 7. Which letter arrows point to hanging valleys? 8. Which letter arrows point to aretes? 9. Name a peak on the map that is a horn. 10. Feature E on the map is composed of glacial till. What type of glacial feature is E, and how did it form?
Friday, November 25, 2016 by Jade

Math
Science is the favorite subject of 73% of student at a school. There are 700 students at the school. How many of them like science best?
Friday, November 25, 2016 by Jenny

Science
The linear momentum of a car and truck are equal.which have more speed
Friday, November 25, 2016 by Ashish

science
A system contains 0.15 m3 of a gas at a pressure of 3.8 bar and 150 C. It is expanded adiabatically till the pressure falls to 1 bar. The gas is then heated at a constant pressure till its change in enthalpy is 70 kJ. Determine the total work done. 
Friday, November 25, 2016 by seeoo

Science
If The Force Of The Body Is 15 (N) And Travelled In A Particular Direction For 5 Second Calculate The Impulse
Friday, November 25, 2016 by Adebiyi Abiodun

basic science
3 component of environment
Friday, November 25, 2016 by goodness

Environmental Science
(10 Environmental Science questions. Please help correct my incorrect answers) 1. A prion is an infectious, self-reproducing protein structure. (True)<---My Answer False 2. As one organism eats another, toxins can be spread throughout the food chain. (True)<---My Answer ...
Friday, November 25, 2016 by GummyBears18

Science
Is it possible for scientists to do studies about things that happened millions of years ago? Explain. Please give me an example..!
Thursday, November 24, 2016 by See

Science
A body weighing 150 N, moves with simple harmonic motion. The velocity and acceleration of the body when it is 200 mm from the centre of oscillation, are 5 m/s and 20 m/s2 respectively.Determine (a) amplitude of motion ,no. of vibrations per minute, Periodic time and angular ...
Thursday, November 24, 2016 by Seeoo

Science
Calculate the gram molecular mass of nitrogen if 360cc at STP weigh 0.45g.
Thursday, November 24, 2016 by Chemistry

Science
How does a cockroach protect itself?
Wednesday, November 23, 2016 by SCIENCE HELP

Science
A 8.8-kg object is moving at 5.3 m/s. A 7.4-N force is applied in the direction of motion and then removed after the object has traveled 4.7 m. The work done by this force is:
Wednesday, November 23, 2016 by Ahmad

Science
A piece of wood float on water and sinks in a methylated spirits .if the density of the wood is 0.8g/cm,explain why it would float on water and sink in methylated spirits .what can you say about the methylated spirit
Wednesday, November 23, 2016 by Raymond

science
Two rods of equal length and temperature at end of the rods is T1 and T2. What is the condition for equal flow of heat through them
Wednesday, November 23, 2016 by gayathri

English
Unit 4 Lesson 4: Writing Workshop: Compare & contrast essay I have to compare Nethergrave with something that's science fiction, from a book, movie, or even a video game... Any ideas what I should compare Nethergrave with?
Wednesday, November 23, 2016 by Shia LaBeouf

Science
Mammals whose young develop in a pouch on the mother's body are called: a.placental mammals b.monotremes c.marsupials d.gymnosperms thx
Wednesday, November 23, 2016 by Nonya

science
a stone is dropped from the tower of hight 125m; calcute (1) Time taken to reach the ground. (2) Find velocity of stone.
Wednesday, November 23, 2016 by Pankaj Kumar

Science Physics
An air plane flies 20 km in a direction 60 degree west of north then 40 km straight east and then 10 km in a direction 30 degree north of east . How far and at what direction is the plane from the starting point?
Wednesday, November 23, 2016 by Kundan Subedi

science
How much work is done by the system if the internal energy decrease by 100j when 200j applied to the system
Wednesday, November 23, 2016 by Haopu

science
what makes us cry while chopping the onions?
Wednesday, November 23, 2016 by shall

science
parasitic worm infestation is hypothesized to be damaging to the host. However scientists have recently discovered that worm infestation of certain autoimmune disorders. in which of the following ways should the hypothesized to be modified , given the new findings A. worm ...
Wednesday, November 23, 2016 by mae

science
how many moles of h2 can be prepared from 3moles of Fe ?
Tuesday, November 22, 2016 by kimberly

Math
In Mrs. Wallace's science class one half of the students are boys of the boys 1/8 or left-handed what fraction of the students and Mrs. Wallace's science class are left handed
Tuesday, November 22, 2016 by Yfgjugfhuu

SCIENCE
Calculate the mass % of nacl in a solution containing 1.5g of nacl in 50.0g of water
Tuesday, November 22, 2016 by YIRA

science
which of the following would decrease the human ecological footprint? 1) using bottled water instead of tap water 2) using public transportation instead of riding in a car 3) buying books instead of borrowing from the library 4) using hot water instead of cold to wash clothing
Tuesday, November 22, 2016 by Jaden

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Homework Help: Computers

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