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March 27, 2017

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Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

science
An automobile travelling at 80km per hours has tyres of radius 80 cm. On applying brakes the car is brought to a stop in 30 complete turns of the tyres. What is the magnitude of the angular acceleration of the wheels how far does the car move while the brakes are applied
Wednesday, March 15, 2017 by gobind

science
A truck of mass 2000 kg moving on a highway experience an average frictional force 800 N. il its speed increase from 25m / s to 35m/s over a distance of 500m. What is the force generated by truck
Wednesday, March 15, 2017 by gobind

science
A bullet of mass 20g travelling at speed of 350m per second strike a steel plate at an angle of 30degree with the plane of plate it ricochets off at the same angle at a speed of 320m per second what is the magnitude of impulse that the steel plates gives to the projectile if ...
Wednesday, March 15, 2017 by gobind

science
A bullet of mass 20g travelling at speed of 350m per second strike a steel plate at an angle of 30degree with the plane of plate it ricochets off at the same angle at a speed of 320m per second what is the magnitude of impulse that the steel plates gives to the projectile if ...
Wednesday, March 15, 2017 by gobind

Science
What abiotic and biotic factors might limit population size and mono lake?
Wednesday, March 15, 2017 by Lily

Science
How are the primary pigments related to the primary colors? The primary pigments are: A. Complementary to the primary colors B. Associated with the primary colors C. Unrelated to the primary colors Is the answer A?
Wednesday, March 15, 2017 by Anonymous

Physical Science
Find the hydroxide-ion concentration in an aqueous solution when the hydronium-ion concentration is 1×10^−10M. Recall that 10^a×10^b=10^(a+b). Express your answer to one significant figure and include the appropriate units.
Wednesday, March 15, 2017 by Hannah

Physical Science
Find a hydroxide-ion concentration in an aqueous solution having a pH of 2. Express your answer using one significant figures. I thought the answer was 1*10^-2, but I have no clue what I am doing wrong.
Wednesday, March 15, 2017 by Hannah

Science
A professional baseball player pitchers a ball giving it a velocity of 45m/s towards the butter. The batted ball has a velocity of 30m/s towards the pitcher. Let the direction from the batter to the pitcher be the positive direction. If the change in velocity takes place over ...
Wednesday, March 15, 2017 by Mileena

Science
In the record setting race, a dragster reached a velocity of 145.08 m/s in 4.48s. What was the dragsters average acceleration? Assume that the direction of the velocity is positive.
Wednesday, March 15, 2017 by Mileena

Science
The image above shows the movement of a wave over three seconds. What is the frequency of the wave? A. 2 hz B. 5 hz C. 1 hz D. 3 hz
Wednesday, March 15, 2017 by Anonymous

SCIENCE
Barry used a ramp to transport a load to a truck. The ramp made work easier by : 1) reducing the size of the input force 2) reducing the input force to zero 3)changing the distance over, which the input force was exerted 4) reducing the output force to zero I think #3
Wednesday, March 15, 2017 by Evelyn

Science
My sister plays her PS4 all day and whenever her remote vibrates while it's sitting on the couch, I can feel the vibration from a different seat. I don't understand how the vibration of a little remote can move throughout a whole, large couch.
Wednesday, March 15, 2017 by Gabe

SCIENCE
The handle of a tennis racket is enclosed in rubber. What is the function of the rubber handle? 1)to increase energy 2)to increase weight 3)to increase friction 4)to increase force I think # 3
Wednesday, March 15, 2017 by Evelyn

science
how many grams of nacl are required to neutralize 100 ml of 1M h2so4???
Wednesday, March 15, 2017 by Chemistry

Science
Draw a dot plot representative of a flow cytometry test that looks at two markers. One marker is diagnostic, while the other marker is prognostic. Identify and name your markers and their detecting antibodies. Complete the plot as you wish and correctly interpret it. 
Tuesday, March 14, 2017 by Moe

Science:Just need quick help
I am very tired and can hardly think straight. Thanks in advance to those who help. The amount of each size particle in soil is the particle size distribution. Is putting soil and/or sand in a bottle of water a good way to determine particle size distribution? Why or why not?
Tuesday, March 14, 2017 by Tori

Science (HELP ASAP)
1. Which of these is not an environmental effect of building dams A. Reduced fertility downstream<<< B. Weed growth downstream C. Increased water temperature D. Soil erosion upstream 2. Which of these is not an environmental effect of destroying wetlands A.smog B....
Tuesday, March 14, 2017 by Ashley

Science
Electromagnetic and mechanical waves have different characteristics that make them advantageous for certain applications. Select the reasons that mechanical waves, such as ultrasound, are used for soft tissue imaging and to identify fractures in metals. Question 1 options: ...
Tuesday, March 14, 2017 by Maya

Science
When plants grow toward sunlight they____ A. Live longer B. Get more light C. Get smaller D. Die faster
Tuesday, March 14, 2017 by Ashley

Science
Which of the following boxes below represent a stable system? Describe how a disturbance to this box would affect it. Use the terms center of mass and equilibrium in your response. Box A: Shaped like a diamond on a flat surface with an arrow pointing downwards. Box B: A square...
Tuesday, March 14, 2017 by Anonymous

physical science
If sam drops a 40 kg mass from a height of 20 meters on earth how much was the potential energy of the mass before he dropped it a-800 j b-784 n-m c-800 n-m d-7840 j e- 200 j
Tuesday, March 14, 2017 by erika

physical science
a 500 kg elevator is lifted 10. How much work was done a 50 j b 50 j /kg c 5000 j d 5000 j/kg degree c
Tuesday, March 14, 2017 by erika

Creating High-Quality Centers
Which of the following statements accurately reflects what we know about facilitating science learning for infants and toddlers? A. It's important to have a science circle each week where the teacher demonstrates a science concept to the infants and toddlers. B. Infant and ...
Tuesday, March 14, 2017 by Priscila

science
If sam drops a 40 kg mass from a height of 20 meters on earth how much was the potential energy of the mass before he dropped it a-800 j b-784 n-m c-800 n-m d-7840 j e- 200 j
Tuesday, March 14, 2017 by erika

Creating High-Quality Centers
Which of the following teachers is using the computer most effectively? A. "I use the computer to manipulate figures and place the actual hands-on manipulatives nearby." B. "I use the computer so that children can manipulate geometric figures." C. "I believe that my preschool ...
Tuesday, March 14, 2017 by Priscila

Physical Science
What are the products of a double replacement reaction between potassium bromide and silver nitrate? Name the resulting compounds.
Tuesday, March 14, 2017 by Leon

science
1) At body temperature of 36.5 ° C the osmotic pressure of the blood is of 7.80 atm. Calculate the mass of glucose (C6H12O6) that must be added to one liter of a solution containing 5 g / L of NaCl to be able to inject directly into a vein.
Tuesday, March 14, 2017 by michael

science
Suppose an ideal car jack has an input work 2750 J. It lifts a car 0.35 meters in 8 seconds. a. What is the output work of the jack? b. How much power is required to lift the car? c. What is the efficiency of the jack? I can't give a answer because I am very confused.
Tuesday, March 14, 2017 by Anthony

science
Suppose an ideal car jack has an input work 2750 J. It lifts a car 0.35 meters in 8 seconds. a. What is the output work of the jack? b. How much power is required to lift the car? c. What is the efficiency of the jack?
Tuesday, March 14, 2017 by Anthony

Science
Which of the following would best explain why a species of wildflower native to Switzerland is observed growing in the wild in Montana? Wind dispersed seeds of the wildflower.* Water dispersed seeds of the wildflower. A human brought and dispersed the seeds. Is this right?
Tuesday, March 14, 2017 by Dylan

maths
In a group of 50students,35 students like only one subject out of english & science.The ratio of students who like both & who dont like both is 1:2.Find the number of students who like both the subject.
Tuesday, March 14, 2017 by abhisehk

science
a car is used to move a crest of mass of 645kg on a horizontal road the horizontal force exerted is 15000n the coefficient of kinetic friction is 0.8 calculate the acceleration of the car
Tuesday, March 14, 2017 by refilwe

Science
1. What is the main difference between mechanical and electromagnetic waves? A. Mechanical waves involve transfer of energy, electromagnetic waves do not. B. Mechanical waves require a medium to travel in, electromagnetic waves do not.~~~~ C. Mechanical waves have amplitude ...
Tuesday, March 14, 2017 by Help Me Please!!!!!

Science
1. What is the main difference between mechanical and electromagnetic waves? A. Mechanical waves involve transfer of energy, electromagnetic waves do not. B. Mechanical waves require a medium to travel in, electromagnetic waves do not.~~~~ C. Mechanical waves have amplitude ...
Tuesday, March 14, 2017 by Emma

Science
1. What is the main difference between mechanical and electromagnetic waves? A. Mechanical waves involve transfer of energy, electromagnetic waves do not. B. Mechanical waves require a medium to travel in, electromagnetic waves do not.~~~~ C. Mechanical waves have amplitude ...
Tuesday, March 14, 2017 by Teddy

Science
Hybridisation of C in [ CH triplebond C sinlebond CH doublebond CH2 ]
Tuesday, March 14, 2017 by Karuna

science
Two objects slide over a frictionless horizontal surface. The object A with a mass of 5000g is moves at a speed of 4.5m/s toward the object B (mB= 2500g) which is initially at rest. After the collision, both objects are directed to 30O on either side of the original line of ...
Monday, March 13, 2017 by tony

science
Write the structural formula of 2,3,5-trimethyl-4-propylheptane.
Monday, March 13, 2017 by tony

science
1 litre of coffee at 80oC need to be cooled to 40oC. Assuming that all the ice melts and no heat is lost to the environment. Take the specific heat capacity of coffee to be 4200J/kgK, density of coffee to be 1000kg/m3 and latent heat of fusion of water to be 3.34 x 105 J/kg. ...
Monday, March 13, 2017 by tony

basic science
1 litre of coffee at 80oC need to be cooled to 40oC. Assuming that all the ice melts and no heat is lost to the environment. Take the specific heat capacity of coffee to be 4200J/kgK, density of coffee to be 1000kg/m3 and latent heat of fusion of water to be 3.34 x 105 J/kg. ...
Monday, March 13, 2017 by tony

Really quick question
(this course is called Business Computer Info System fyi) Describe how you would select a function in an spreadsheet. ??? Please help!
Monday, March 13, 2017 by Tori

Texas History
What has enabled Texas manufacturers to help the state’s economy become more productive? A. environmentally friendly techniques B. new computer technology C. new labor practices D. population increases How has the oil industry in Houston changed over time? A. It is less ...
Monday, March 13, 2017 by Marie

Science
The following sphere is responsible for forming the solid shell of Earth that holds up life? -Hydrosphere -Lithosphere -Atmosphere -Biosphere** Explain the interaction between the four main components of Earth's physical systems. Be sure to include the name of each system and ...
Monday, March 13, 2017 by PoPo

Science
where is the crater of the asteroid that killed the dinosaurs
Monday, March 13, 2017 by Side Walks

Science
What is the main difference between mechanical and electromagnetic waves? A. Mechanical weaves involved transfers energy; electromagnetic waves do not B. Mechanical waves require a medium to travel in; electromagnetic waves do not***** C. mechanical waves have amplitude and ...
Monday, March 13, 2017 by I need help

computer programming
Create the logic for a program that accepts input values for the projected cost of a vacation and the number of months until vacation. Both values must be greater than zero. Pass both values to a method named displaySavingsAmt(cost, months) that displays the amount you must ...
Monday, March 13, 2017 by alex

science
An elephant of mass 500kg stand with all four feet on the ground.Each foot has an area of 0.08m2.Calculate the pressure exerted on the ground.(g=10/s2)
Monday, March 13, 2017 by Doku

Science
What is the difference between short-circuiting and overloading? From what I can gather from my textbook, both happen as a result of external resistance being lesser than the sum of internal resistance.
Sunday, March 12, 2017 by derrickL

Science - Plate Tectonics
Where does the source of heat for Earth’s convection currents come from
Sunday, March 12, 2017 by Jasmine

Science-tectonic plates
What occurrence is caused when transform plates get stuck?
Sunday, March 12, 2017 by Nikko

science
why does the load reaches 50 meters from the ground will the correct position of the PE and KE that the problem isa crane lifted a 1000 kg load to a height of 50 meters from the ground. at which position are the PE and KE of the load equal
Sunday, March 12, 2017 by renalyn

Science
Find molecular mass of an element having- Density= 1.56 gm/l Temp.= 65 degree Celsius Press.= 745mm
Sunday, March 12, 2017 by Anushka

pre calc
The population of a Midwestern city decays exponentially. If the population decreased from 900,000 to 800,000 from 2003 to 2005, what will be the population in 2008? Please help I got 670,422 and the computer marked it wrong i then tried rounding it to 671000 but it was still ...
Saturday, March 11, 2017 by Sandy

pre calc
The population of a Midwestern city decays exponentially. If the population decreased from 900,000 to 800,000 from 2003 to 2005, what will be the population in 2008? Please help I got 670,422 and the computer marked it round i then tried rounding it to 671000 but it was still...
Saturday, March 11, 2017 by Sandy

Science
Which tunable property is the great thrust in biological and medical sciences? A) physical B) chemical C) biological D) none
Saturday, March 11, 2017 by Sanjay

Science
What is the increment in power if current increases by 1% and resistance remain constant
Saturday, March 11, 2017 by Sanjay

Math,science,social,Hindi,english
A person weighing 50kg runs up a hill raising himself vertically 10m in 20sec. Calculate the power of the person.
Friday, March 10, 2017 by M.DAVINSI

computer programming
Create the psuedocode for an application class named Monogram. Its main() method holds three variables that hold your first, middle, and last initials, respectively. Create a method to which you pass the three initials and that displays the initials twice—once in the order ...
Friday, March 10, 2017 by tom

Science
Granite lasts a long time when it is used for building in areas where
Friday, March 10, 2017 by Jay

Materials Science
The atomic radii of Mg2+ and F-1 ions are 0.072 and 0.133 nm, respectively. (a) Calculate the force of attraction between these two ions at their equilibrium interionic separation (i.e., when the ions just touch one another). (b) What is the force of repulsion at this same ...
Friday, March 10, 2017 by Eflatun

Science
How many grams of NaOH will be needed to prepare 250ml of 0.1M solution:-
Friday, March 10, 2017 by Md Shams Rizvi

Science
When a silvery powdery substance was added to boiling beans,the beans get cooked quicker than normal. what may this be?
Friday, March 10, 2017 by Jonathan

science
were must be the pivot situated on a straight lever 2m long,if a downward effort of 200N at one end is to lift a mass of 50kg at the other end.state the distance from the effort.
Friday, March 10, 2017 by Douglas

Physical Science
If Argon is 39.948, calculate average at kc mass of argon
Thursday, March 9, 2017 by Susan

Mrs Sue Plz help (Science)
How is an mold and a cast related
Thursday, March 9, 2017 by Side Walks

science
A 13,500 kg jet is moved with a thrust of 5,224,700 Newtons west. what is the acceleration of the jet?
Thursday, March 9, 2017 by billy

science
How does a sequoia tree sustain itself and support bad weather if its roots are short?
Thursday, March 9, 2017 by Acasia

Science
How are a mold and a cast related Someone plz help
Thursday, March 9, 2017 by Side Walks

natural science/bio
flow diagram of circulatory and respiratory system combined
Thursday, March 9, 2017 by Anonymous

Science (check my answers)
14. Chemical runoff from fields, oil spills, and erosion is the major source of a. air pollution b. water pollution*** c. hydropower d. renewable energy 15. Which compound causes the depletion of earth's ozone layer? a. ultraviolet radiation*** b. chlorofluorocarbon c. carbon ...
Thursday, March 9, 2017 by EmberShy

Science (check my answers)
11. How do fossil fuels contribute to air pollution? A. By releasing carbon dioxide into the air*** B. By recycling oxygen C. By reversing the greenhouse affect D. By releasing nitrogen into the air
Thursday, March 9, 2017 by EmberShy

Science
1. Which of the following is the most effective way to preserve biodiversity? A. Captive Breeding B. habitat destruction C. habitat preservation*** D. habitat fragmentation 2.which of the following would result in the greatest reduction of waste A)composting food waste B)...
Thursday, March 9, 2017 by EmberShy

Science
Plzz Help me i need help Why is California's high speed rail such a groundbreaking effort??
Thursday, March 9, 2017 by Young Trippy Lil G

Science
Which statement correctly describes the sun and earth? a. the sun and earth both have water. b. the sun and earth both have a surface called the crust. c. the sun and earth both have an atmosphere d. the sun and earth both have breathable air
Thursday, March 9, 2017 by Aisha

science
A ray of light travelling in air strikes the water surface at an Angle of 30 degree calculate the Angle of light refraction if refractive index of glass is 1.5
Wednesday, March 8, 2017 by vikas

chemistry
name an invention or event (related to science or technology) from the past 100 years that you think has helped shape the roles of women today.
Wednesday, March 8, 2017 by ally

science
Formic acid ,HCOOH, is a monoprotic acid. circle the acidic hydrogen. Write the formula of the conjugate base after the acidic hydrogen is lost.
Wednesday, March 8, 2017 by jipah

Science
Calculate and give answer of appropriate number of significant digits A. 7.6 x21.9 B. 2,15 x 3.1 x 100 C. 38/7
Wednesday, March 8, 2017 by Mileena

Science, 10th class
Is the resistance of a resistor change when it cuts into 3pieces
Wednesday, March 8, 2017 by Is the resistance of a resistor change when it cut

Science
1- Freezing of water is ____ change. 2- A solid which dissolve in water is called ____
Wednesday, March 8, 2017 by Hira

Science
In a heat engine, if 700 J of heat enters the system, and the piston does 400 J of work, what is the final internal (thermal) energy of the system if the initial energy is 1,200?
Wednesday, March 8, 2017 by Anonymous

Physical Science
A 10 N object rests on a 10° incline. What is the normal force? What is the parallel force? A 10 kg object rests on a 10° incline. What are the normal and the parallel forces?
Wednesday, March 8, 2017 by Angela

science
A ray of light travelling in air strikes the water surface at an angle of 30 degree calculate the angle of refraction if refractive index of glass is 1.5
Wednesday, March 8, 2017 by vikas

Science
How much more concentrated is 1ml of 0.5mg/ml haemoglobin in 10% sucrose at an absorbance of 2.4, compared to a solution of 0.1ml of 0.5mg/ml haemoglobin in 10% sucrose and 0.9ml of 10% sucrose at an absorbance of 0.350
Wednesday, March 8, 2017 by Lillie

Science
Why is it better to use a micropipette that can transfer 200 microlitres or less, to transfer 200 microlitres, over using a pipette that can transfer 200 microlitres or more?
Wednesday, March 8, 2017 by Lillie

science
How many moles of carbon monoxide are needed to react completely with 108 kg of Fe2O3. Fe2O3(s)+CO(g)→Fe(s)+CO2(g)
Wednesday, March 8, 2017 by Janessa

Science
The seeds develop into BLANK and are dipersed
Tuesday, March 7, 2017 by Juniper

Science
Can Someone explain this? Should other states wait to see if the high-speed rail system works well before starting their own plans for similar systems?
Tuesday, March 7, 2017 by EmberShy

Science
Match the question with the correct conversion factor needed. Column A 1.What is the mass, in grams, of a single atom of carbon?: 2.What is the mass, in grams, of a single atom of iron?: 3.What is the mass, in grams, of a single molecule of water?: 4.What is the mass, in grams...
Tuesday, March 7, 2017 by Elena

Science
What mass of sodium has the same number of atoms as 50.0 g of calcium?
Tuesday, March 7, 2017 by Elena

Science
Discuss your opinion of the consequences of artificial selection and the advantages and disadvantages of using genetic information in society. Use facts from your research to support your opinion. Cite the sources for your facts. Also, discuss your answer to the Apply the Big ...
Tuesday, March 7, 2017 by Valerie

science
10. How does a star's life begin
Tuesday, March 7, 2017 by CJ So Cool

Science
1.Acceleration involves a change in? A.time B.direction C.speed D.both direction and speed I think it's D?
Tuesday, March 7, 2017 by Bee:)

Science Plz help
How were the Aborigine people affected when their children were forced to live with British families or in institutions?
Tuesday, March 7, 2017 by Sid.V

Science: Chemistry
What is the mass percent of oxygen in sodium bicarbonate(NaHCO3)?
Tuesday, March 7, 2017 by SaraK

Online Statistics Tutor
Are you looking for a flexible a way to earn extra cash? Become an online statistics tutor at got it! and start earning instantly! At got it!, we help thousands of students learn every day. Our online tutors are an important part of our learning community, and assist students ...
Monday, March 6, 2017 by got it!

Science
1. groups/ family of elements are ones which: A. Have the same number of electrons in the valence/ outer engery level B. Have exactly 8 electrons in the valence shell outer energy level C. Have the same number of protons in the nucleus 2. A period represents elements which? A...
Monday, March 6, 2017 by Mileena

Science
What are 4 producers, 4 consumers, and 2 decomposers you would find in a Pennsylvania ecosystem
Monday, March 6, 2017 by Tsundere_Mailbox

Science
PLEASE CHECK MY ANSWERS :) answers marked below 1. Which of Earth’s spheres contains most of its mass? (1 point) atmosphere *** hydrosphere geosphere biosphere 2. Erosion and weathering are examples of which types of forces? (1 point) constructive forces destructive forces...
Monday, March 6, 2017 by Anonymous

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Homework Help: Computers

Post a New Question