Friday
July 25, 2014

# Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

science
A 0.63kg{\rm kg} mass vibrates according to the equation x=0.30cos7.00tx = 0.30 \cos 7.00 t, where xx is in meters and tt is in seconds. Determine the amplitude.
Thursday, May 1, 2014 at 5:26pm

science
Which of the following illustrates mechanical weathering? A. Carbonic acid weathers marble limestone B.As plants grow, they produce weak acids that slowly dissolve rock C.Oxidation causes weathering in rock<--- D.Repeated freezing and thawing in rocks causes weathering
Thursday, May 1, 2014 at 3:10pm

science
Which of these statements about saltwater is correct? Saltwater freezes at a lower temperature Saltwater freezes at a higher temperature<--- Saltwater does not freeze at any temperature. Saltwater’s freezing point depends on the temperature of ocean floor
Thursday, May 1, 2014 at 3:05pm

Which one of these statements is true about a "bumper-to-bumper" warranty. A. Normal wear and tear is NOT covered by the warranty. B. All expenses except gasoline and routine oil changes are covered by the warranty. C. Every part and system is covered without ...
Thursday, May 1, 2014 at 1:39pm

Science
Hello. I need help with science questions. Could you please check these answers for me? Thank you very much! 1. Which of the following traits is acquired A. the number of petals that grow in a plant's flowers B. the wing shape of a wild bird C. the ability of some gorillas...
Thursday, May 1, 2014 at 1:32pm

science
A student is trying to identify the different forms of energy described in the following chart:
Thursday, May 1, 2014 at 11:14am

Science
How much work is done on the trolley by the force,if the force applied is 200N at an angle of 37 degrees to the horizontal and the trolley moves a distance of 10m.
Thursday, May 1, 2014 at 10:26am

Statistics
Carol has data on the causes of violent outbursts among kindergarten children. She used a "shot-gun" approach to hypothesis testing by asking the computer to produce p-values for 300 quickly chosen hypothesis tests. She shared her glee with fellow researchers, noting...
Thursday, May 1, 2014 at 8:27am

If you see that a hot-air balloon is rising above the top of a hill, what is the top of the hill called?
Thursday, May 1, 2014 at 7:59am

science
is that electric current occupies space?
Thursday, May 1, 2014 at 2:11am

science
How are restriction enzymes important tools in genetic engineering?
Thursday, May 1, 2014 at 1:13am

Science(chemistry)
how much energy is needed to change 53 grams of water from -53 degrees celsius to 160 degrees celsius ?
Wednesday, April 30, 2014 at 9:20pm

computer
You suspect that the failure of a router or of a transmission line connecting routers has left some of your important servers unavailable to clients at your site. How could you narrow down the location of the problem using what you learned in this chapter?
Wednesday, April 30, 2014 at 7:59pm

Statistics
Carol has data on the causes of violent outbursts among kindergarten children. She used a "shot-gun" approach to hypothesis testing by asking the computer to produce p-values for 300 quickly chosen hypothesis tests. She shared her glee with fellow researchers, noting...
Wednesday, April 30, 2014 at 7:25pm

Computer
A router receives an IPv4 packet. The source ip address is 10.55.72.234. the destination host is 10.4.6.7. the TTL value is 1. The protocol field value 6. What will the router do with this packet?
Wednesday, April 30, 2014 at 6:03pm

science
Glucose is a simple sugar made up of carbon, hydrogen, and oxygen. What kind of molecule is glucose? A. Glucose is protein. B. Glucose is a nucleic acid. C. Glucose is an organic molecule. D. Glucose is an inorganic molecule
Wednesday, April 30, 2014 at 5:22pm

Computer Programming I
Following is my Project 2. In Project 1, I wrote a program to draw square, rectangle and triangle and this is its second part. I could not figure it out how to do it. Any guidelines and suggestions would be highly appreciated. Project 2: Our customer was pleased with the ...
Wednesday, April 30, 2014 at 4:19pm

life science,maths lit,geography,tourism
is it possible 4 me 2bcum a social worker?
Wednesday, April 30, 2014 at 4:08pm

Chemistry
Which substance has the higher entropy? a.) a sample of pure silicon (to be used in a computer chip)or a piece of silicon containing a trace of another element such as boron or phosphorus b.) O2(g) at 0 degrees C or O2(g) at -50 degrees C c.) I2(s) or I2(g), both at room ...
Wednesday, April 30, 2014 at 2:35pm

science
In the ocean, there are areas where there are very few living things. ____________ is the term that describes when this happens to a natural area.
Wednesday, April 30, 2014 at 2:34pm

science
2.Imagine two artificial satellites orbiting Earth at the same distance. One satellite has a greater mass than the other one. Which of the following would be true about their motion?   (1 point) The satellite with the greater mass is being pulled toward Earth with ...
Wednesday, April 30, 2014 at 2:30pm

science
the energy stored in atoms is released when electricity is made with ____________ power.
Wednesday, April 30, 2014 at 1:32pm

science
A homeowner determined that he used 114 gallons of oil every month to heart his home during the winter. this information would be considered part of his ___________________.
Wednesday, April 30, 2014 at 12:55pm

Science
a 5 kg skateboard moves at 7 m/s^2 . What is the force of the skateboard? 35 N<--- 12 2 m/s^2
Wednesday, April 30, 2014 at 11:47am

language art pllz help
1. Which of the following would most likely connect with the speaker of "Growing Pains"? (1 point)a teen whose parents are going through a difficult divorce a teen who has let down one of her best friends a teen whose mother is often too busy to spend time with him ...
Wednesday, April 30, 2014 at 11:27am

Science
If a rock weighs 100 pounds on Jupiter, what will it weigh on earth?
Wednesday, April 30, 2014 at 1:06am

Science
If you spin a water-filled cup horizontally on a flat table, did you exert force on the water?
Tuesday, April 29, 2014 at 11:36pm

Physical Science
Which of these cannot increase the strength of an electromagnet? a. making the loops smaller in the coil b. placing an iron bar in the coil c. winding more loops in the coil d. increasing the current in the coil
Tuesday, April 29, 2014 at 11:31pm

Science
a 5 kg skateboard moves at 7 m/s^2 . What is the force of the skateboard? 35 N<--- 12 2 m/s^2
Tuesday, April 29, 2014 at 10:19pm

science
why do cells created by meiosis only have half the number of chromosomes from the original cell?
Tuesday, April 29, 2014 at 6:48pm

science
How does using coal to generate electricity A. using more coal reduces the amount of pollution from using oil <--------------- B. using improves the quality of nearby water C. using coal, instead of wood from trees, helps improve the environment D. using coal releases ...
Tuesday, April 29, 2014 at 5:27pm

science
solar,wind,nuclear,and hydroelectric energy sources are similar in which of the following ways? A. they are all nonrenewable energy sources B. they all require an indirect use of sunlight in order to make electricity C. they are all considered alternative energy sources D. ...
Tuesday, April 29, 2014 at 5:10pm

science
which of the following is used to make biomass fuel? A. coal B. natural gas C. plants and animals waste D. petroleum
Tuesday, April 29, 2014 at 4:41pm

science
Running the dishwasher only when it is completely full is an example of? A. recycling resources B. using nonrenewable resources C. reusing resources D. reducing resource use
Tuesday, April 29, 2014 at 4:18pm

Science
What is the force that results from a 3,000 kg car accelerating at 20.00 m/s^2
Tuesday, April 29, 2014 at 3:18pm

algebra 1
Mrs. Hernandez owns a computer training business. She charges a lab fee plus an hourly fee to train office workers on various software programs. It costs $265.00 to attend a 6-hour course and$345.00 for an 8-hour course. Which equation relates x, the number of hours in the ...
Tuesday, April 29, 2014 at 2:20pm

Science
Which of the following would have the greatest force? an object with low mass accelerating slowly an object with low mass accelerating quickly an object with high mass accelerating quickly<--- an object with high mass accelerating slowly
Tuesday, April 29, 2014 at 2:13pm

Science
in a cladogram, a branch point represents a(n)____________ and a branch that ens without leading to living species represents___________. a. common ancestor,;extinction b.mutation; punctuated equilibrium c.extinct species: common ancestor D.common ancestor; speciation
Tuesday, April 29, 2014 at 11:53am

Statistic in Social Science
The verbal part of the Graduate Record Exam (GRE) has a mean of 500 and a standard deviation of 100. Use the normal distribution to answer the following questions: a. If you wanted to select only student at or above the 90th percentile, what verbal GRE score would you use as a...
Tuesday, April 29, 2014 at 2:31am

Barber Scotia
your planning to buy a new computer monitor and printer for your office. you received the following prices: Store 1; Computer 2500 monitor 595 printer 398 Store 2 computer 2350 monitor 435 printer 349 find the total package price from each store and then calculate how much you...
Monday, April 28, 2014 at 10:09pm

Science
Monday, April 28, 2014 at 5:58pm

Science
Are the following Ionic, covalent or both? NH4Cl and NaOH Thanks
Monday, April 28, 2014 at 5:35pm

Science chemistry
How much mgs can be obtained from 20g of mg and 20 g of s by the reaction mg+s_>mgs
Monday, April 28, 2014 at 4:34pm

Decided wheather work is being done or not. If it is being down write W. If not write N 1. You throw a baseball a distance of 20 meters. My answer: W 2. You lift a suitcase to put in the overhead luggage compartment of a plane. My answer: N 3. You push against a brick wall ...
Monday, April 28, 2014 at 1:47pm

Math
Ryan left the science museum and drove south. Gabriella left three hours later driving 42 km/h faster in an effort to catch up to him. After two hours Gabriella finally caught up. Find Ryan's average speed
Monday, April 28, 2014 at 9:11am

Science
What contribution does the African elephant make to the world.
Sunday, April 27, 2014 at 11:48pm

computer literacy
1. Which of the following options would return a true statement for the sentence: The sky is bluest early in the morning. (A) Sky and blue Sky not morning Sky or dark Sky and evening 2. Famed science fiction writer H. G. Wells once envisioned something to store vast amounts of...
Sunday, April 27, 2014 at 8:27pm

science/ ms. sue
1. how does oil between machine parts reduce friction ?
Sunday, April 27, 2014 at 8:20pm

science
Given the following reaction: CaC2 + 2 H2O C2H2 + Ca(OH)2 How many moles of Ca(OH)2 will be produced if 5.800 g of CaC2 are reacted completely?
Sunday, April 27, 2014 at 5:14pm

Science help
14. The energy role of the first organism in a food chain is always a(n) ___________. (1 point) 15. Water is a(n) __________ factor in all ecosystems that all living things require. (1 point) 16. ___________bacteria carry out the conversion of gaseous nitrogen to a ...
Sunday, April 27, 2014 at 3:35pm

Science-- Plz, Plz check my answers!!
1. Which of the following can be expected to occur as climate change continues on Earth? decreased melting of sea ice decreased migration of pests and pathogens increased freshwater sources increased coastal flooding *** 2. Which piece of children’s’ playground ...
Sunday, April 27, 2014 at 2:07pm

science: biology
The hyena is a carnivore. Justin claims that hyenas need plants to survive, but Kaden says that they don't because they only eat meat. Who is correct and why?
Sunday, April 27, 2014 at 9:27am

science
a decrease in food miles will likely increase the environmental impact of any given food points. True or false
Sunday, April 27, 2014 at 9:07am

Science
1. If the net force on an object is O N, the forces are considered unbalanced true false 2. Most people in the united states use feet and miles to measure distance in their everyday lives. why do scientist in the United States use meters to measure distance? Meters allow ...
Saturday, April 26, 2014 at 3:36pm

Science
A uniform meter scale is suspended from 40 cm mark when weight of 25 gf and 10 gf are suspended at 5 cm mark and 75cm mark respectively. Calculate the weight of the meter scale.
Saturday, April 26, 2014 at 3:23pm

Science
What are 3 limitations for modeling mitosis?
Saturday, April 26, 2014 at 11:11am

science
Why are there usually more producer in an ecosystem than consumers? a). There is less energy available to the consumers. b). There is more energy available to the consumers. My answer is ( a ).
Saturday, April 26, 2014 at 10:50am

science
When 4.56 g of a nonelectrolyte solute is dissolved in water to make 275 mL of solution at 22 °C, the solution exerts an osmotic pressure of 873 torr.
Friday, April 25, 2014 at 5:24pm

science
a 2,500 kg car at 15 m/s squared, 15 m/s squared is the what of the car?
Friday, April 25, 2014 at 4:18pm

science
what is the force that results from a 3,000 kg car accelerating at 20.00 m/s squared?
Friday, April 25, 2014 at 3:53pm

environmental science
What are some of The Blue Plains Water Advanced Wastewater Treatment Plant standards of
Friday, April 25, 2014 at 10:15am

Science
which of the following body systems does not rely on the autonomic nerve system to stimulate involuntary events?
Friday, April 25, 2014 at 12:33am

science-physics
a ray of light traveling from the air into crown glass strikes the surface at an angle of 30 degrees. what will the angle of refraction be? please help me!! don't ignore this !
Thursday, April 24, 2014 at 9:33pm

science
the role of a grizzly bear is that of a ______ because it conot make its own food.
Thursday, April 24, 2014 at 8:23pm

math
Thursday, April 24, 2014 at 7:40pm

science
What is 3.7 m/s2 in a simpler way for secondary 1 to understand
Thursday, April 24, 2014 at 7:29pm

current events
I need an article of a current event that happened at the most 6 months back. It needs to be included in the ecology category for science class. I need a title author source date who what when where why how and summary PLZ HELP ME!!!
Thursday, April 24, 2014 at 6:27pm

SCIENCE HELP! SOMEONE!
A student compared some chemical and physical properties of three pure substances. Her data are recorded in the chart above. What is a logical conclusion the student can draw about pure substances? A student compared some chemical and physical properties of three pure ...
Thursday, April 24, 2014 at 6:27pm

SCIENCE HELP!
Carl crumpled a piece of paper before throwing it into the trash can. Which is true about the paper after it was crumpled? 1. Its weight changed. 2. Its mass changed. 3. Its form changed. 4. Its density changed.
Thursday, April 24, 2014 at 6:02pm

science
how strenuous should the exercise be in order to metabolize sugar and fat in the body?
Thursday, April 24, 2014 at 5:43pm

science
1. The image above shows the Andes Mountains. Which of the following processes formed this feature? (1 point) (pic of Andes Mountains) Glaciers deposited sediment. Plates converged together to form the mountains. Plates pulled apart and released magma. Sand dunes hardened and ...
Thursday, April 24, 2014 at 3:58pm

Math
Jance spend from 7pm to 9pm doing her homework. She spend 3 times as mach time on her english project as she did on math. the science homework took twice as long as her math homework. How meny minutes did she spend on her science homework?
Thursday, April 24, 2014 at 12:52pm

science
Birds share many different characteristics. List three of these.
Thursday, April 24, 2014 at 1:39am

Science
Is Dilithium real and what can it be used for. should i go find it this cuz it is close to me.I found Dilithium unused on a craiglist ad.
Wednesday, April 23, 2014 at 10:12pm

science!
Does weight + height affect force? Please explain!! I am doing this to explain for mg science essay! I will furthermore add on to the current info.
Wednesday, April 23, 2014 at 9:16pm

computer science
IHow do you refractor this: public class Employee { private boolean isPartTime; private int seniority; private int monthsDisabled; public Employee(boolean isPartTime, int seniority, int monthsDisabled) { this.isPartTime = isPartTime; this.seniority = seniority; this....
Wednesday, April 23, 2014 at 7:14pm

science 1 question
4. How are ocean trenches formed? (1 point) Ocean trenches are formed when oceanic plate cools and moves to the surface of the ocean. Ocean trenches are formed when the denser oceanic plate sinks.*** Ocean trenches are formed when molten rock cools and solidifies. Ocean ...
Wednesday, April 23, 2014 at 6:37pm

science
A 2kg box is suspended from the ceiling by a rope that weighs 1kg.find the tension at the top of the rope?
Wednesday, April 23, 2014 at 6:13pm

SCIENCE PPPLLLLLSSSSS HELP!!!!!!!!!!
Which of the following forms when igneous rocks are weathered and eroded? (1 point) igneous rock sediment sedimentary rock metamorphic rock is it sediment or sedimentary rock!!???
Wednesday, April 23, 2014 at 5:16pm

Science
We just learned about mitosis and my teacher is giving a test over it and other things tomorrow. We have to write the mitosis steps in order, label the chomatids, nuclear membrane, spindle fibers, and centrioles, and have a sentence describing them. How could I remember this?
Wednesday, April 23, 2014 at 4:56pm

science
If Two bodies of same mass is thrown from top of a tower with same speed simultaneously.one (x) is thrown vertically downward and another(y) is thrown horizontally then what will happen?
Wednesday, April 23, 2014 at 4:15pm

science
A bat moving at 5.6 m/s is chasing a flying insect. The bat emits a 60 kHz chirp and receives back an echo at 60.63 kHz. At what speed is the bat gaining on its prey? Take the speed of sound in air to be 338 m/s. Answer in units of m/s
Wednesday, April 23, 2014 at 3:56pm

science 1 question
7. What is the force that results from a 3,000 kg car accelerating at 20.00 m/s2? (1 point) 150.0 N 3,000 N 3,020 N 60,000 N
Wednesday, April 23, 2014 at 2:06pm

maths,science and gengraphy
what are the impacts and consequences of xenophobia
Wednesday, April 23, 2014 at 1:57pm

science
meiosis
Wednesday, April 23, 2014 at 8:01am

science
an aircraft travelling at 600km/hr accelerates steadily at 10 km /h every second. Assuming speed of sound is 100 km /h t the aircrafts altitude , how long will it take to reach the sound barrier
Wednesday, April 23, 2014 at 4:26am

science-chemistry
We performed a titration with NaOH solution with KHP. Now I need to calculate the average molarity of NaOH based on this data Weight of khp= 0.1083 g Volume of naoh = 6.4 ml Then if i get this how do i get the molarity of ch3cooh totrated in naoh with the data Volume of ...
Wednesday, April 23, 2014 at 2:31am

Science
Which of the following would increase the magnetic field around a wire? A. solenoid B. insulator C. conductor D. resistor
Tuesday, April 22, 2014 at 5:47pm

Science
How do gravitational and electrical forces act on a maglev train?
Tuesday, April 22, 2014 at 4:11pm

Science
Can someone explain center of mass in simple terms?
Tuesday, April 22, 2014 at 1:17pm

Science
1. How does sea-floor spreading occur? A. New materials are being added to the asthenosphere. B. Earthquakes brake apart the ocean floor. C. Sediments accumulate at the area of spreading. D. Molten material beneath Earth's crust rises to the surface.*
Tuesday, April 22, 2014 at 12:05pm

Computer Programming
Professor Merlin has asked you to help him. He has 100 total students in his four classes but he is not sure that all of them took his last exam. He wants to average the grades for his last exam in four sections of his medieval literature course and then determine how many ...
Tuesday, April 22, 2014 at 11:45am

Science
The moon reflects sunlight...yes or no
Tuesday, April 22, 2014 at 11:12am

Science
A horizontal force 10 N is necessary to just hold a block stationary against a wall . The coefficient of friction between the block and the wall is 0.2 . The weight of the block will be ?
Tuesday, April 22, 2014 at 7:52am

Computer Literacy
2. Which of the following components was a significant development featured in the Macintosh LISA computer? (C) C Prompt Disk Operating System Graphical User Interface) Memory 4. Which is NOT a function associated with a motherboard? (D) Expansion slot Memory Processor ...
Monday, April 21, 2014 at 10:05pm

Computer Literacy
1. Which vendor did IBM select to create the operating system for the IBM PC? (A) Microsoft Macintosh DEC Dell 2. Which of the following components was a significant development featured in the Macintosh LISA computer? (A) C Prompt Disk Operating System Graphical User ...
Monday, April 21, 2014 at 9:34pm

science
If and iron block had a lenght of 2 cm, a width of 3 cm, and a height of 1 cm and a mass of 33 g between what two liquids would it float?
Monday, April 21, 2014 at 8:14pm

Science
Plant Cell Analogy Cell Membrane: Security Nucleus: Boss Mitochondria: Food court Cytoplasm: Chromosomes: Vacuole: Water Ribosomes: Food Cell wall: Endoplasmic Reticulum: Chloroplasts: Golgi Appartuas: Packer What could the others be?
Monday, April 21, 2014 at 6:41pm