Monday
February 27, 2017

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

Science - physics
If you had to send your laser around a wide corner, which type of mirror could help? Briefly explain how it may help I think this one is a concave mirror
Monday, December 19, 2016 by Kathy

physics (science)
A body travels from rest with acceleration 8m/s square . Find its velocity when it has covered a distance of 100m
Monday, December 19, 2016 by Emmanuella

Physical science
If you use a 29m second-class lever to lift a 1000 N load exactly in the middle of the lever, and you lift the lever 1.5m high, how high do you lift the load?
Sunday, December 18, 2016 by Ainsley

Science
5. Name two ways in which a large cell can minimize the negative effects of its size. -They can minimize their size by cell division. -???????? I cannot find this answer in my textbook. Can someone please help me?
Sunday, December 18, 2016 by Olivia N J

physical science
The gas in a cylinder has a volume of 3 liters at a pressure of 106 kPa. The pressure of the gas is increased to 208 kPa. Assuming the temperature remains constant, what would the new volume be? = ....L?
Sunday, December 18, 2016 by laure

science
Describe how the kinetic energy of the molecules affects an object's total thermal energy.
Sunday, December 18, 2016 by Jenny

Computer Science
When is software described as open source
Saturday, December 17, 2016 by Efa

physical science
If the mass of a material is 99 grams and the volume of the material is 22 cm3, what would the density of the material be? (in g/cm3) i don't know how to find the answer.
Friday, December 16, 2016 by laure

math
What number is 73% of 215? (1 point) 215 = 0.73n n = 0.73 × 215 ***** 0.73 = n × 215 215 = 73n 2. What percent of 94 is 23? (1 point) n/94 = 23/100 23/94 = n/100 94/n = 23/100 **** 23/94 = 100/n 3. 80 is 40% of what number? (1 point) 200 32 20 *** 112 4. Find the commission ...
Friday, December 16, 2016 by me help

Science
Write a short essay in which you create an analogy to describe particle motion. Compare the movements and positions of people dancing with the motions of water molecules in liquid water and in water vapor.
Friday, December 16, 2016 by Brendan

Science
1.Which of these is an example of a biomass fuel? A:Oil B:Natural Gas C:Wood D:Coal 2.The intense heat from Earth's interior that warms the magma beneath the Earth's surface is called __________ energy? A:Hydroelectric B:Geothermal C:Nuclear D:Solar 3.Selective cutting is ...
Friday, December 16, 2016 by Reeces

HELP SCIENCE
Luis created a clay model of earth and the sun to show how earth rotates, Luis wants to use a toothpick to represent earths axis of rotation Where should he put the toothpick A - horizontally through earth in the direction earth is traveling B - vertically through the center ...
Thursday, December 15, 2016 by Unicorn

science
i just some science questions but there not for school. 1. five volcanic eruptions and what are the locations of these eruptions. Did they occur in the middle of a plate or near a plate boundary? What were the effects of these eruptions on the surrounding environment?
Thursday, December 15, 2016 by please help

science
i just some science questions but there not for school. 1. five volcanic eruptions and what are the locations of these eruptions. Did they occur in the middle of a plate or near a plate boundary? What were the effects of these eruptions on the surrounding environment?
Thursday, December 15, 2016 by avery

Science
What do bone marrow and epidermis have in common. A.they are both sites of new cell information B.they both contain structures that assist the body in cooling down if overheating occurs. C.they both contain or are associated with sensory neorons D.they are both involved in ...
Thursday, December 15, 2016 by Anonymous

science
If your rock sample has 10 grams, how many grams of quartz does it contain
Thursday, December 15, 2016 by hunter

9th grade physical science
I'm really confused on how to do this, Can someone help walk me through? An object is placed in front of a concave mirror as shown in the diagram below. A. Draw at least two rays that demonstrate how this mirror produces an image. (4 points) Image B. Describe the image formed ...
Thursday, December 15, 2016 by Mailbox-Kun

Maths science his french
Critical angle of a material to air is 30 degree then the refractive index of material will be
Thursday, December 15, 2016 by Manasi

Science
How much energy is needed to convert 10kg of ice at -15 degrees centigrade to 125 degrees centigrade of steam? Express your answer in joules.
Thursday, December 15, 2016 by Paeng

science
what fabric is a good heat conductor? or what material other than metals are good heat conductors?
Wednesday, December 14, 2016 by boo

Science
How much energy is needed to convert 10kg of ice at -15 degrees centigrade to 125 degrees centigrade of steam? Express your answer in joules.
Wednesday, December 14, 2016 by Paeng

Science
What net force is required to accelerate a roller coaster car that has a mass of 300 kg at Disney world at a rate of 8 m/s2 ?
Wednesday, December 14, 2016 by Stephanie

Science
How much you would weigh on the moon if you are 72 pounds on Earth
Wednesday, December 14, 2016 by Anonymous

Science
Every year Eli and his family visit Great sand dunes desert in Colorado. Elliott notices that more dunes with varied shapes and sizes appear each year. Explain what causes this phenomenon. Help! I know that the wind is always different and that causes erosion.
Wednesday, December 14, 2016 by NOYB

science
How do scientists explain the fact that some landforms that are far apart and separated by oceans appear to be related?
Wednesday, December 14, 2016 by bill

Science
Carla applied a force of 35 N to a wheelbarrow full of bricks and moved it 2.5 m. Which of the following can be determined from this information? The wheelbarrow supplied 87.5 J of work. The wheelbarrow has a mechanical advantage of 14. The wheelbarrow is 7 percent efficient. ...
Wednesday, December 14, 2016 by Science question, please don't give direct answer.

science
what is the specific heat of aluminum if temperature of a 28.4g sample of aluminum is increased by 8.1 c° when 207J og heat is added
Wednesday, December 14, 2016 by mohammed

Science
Each heating element has a resistance of 5 Ω. The current passing through each element is 0.4. Calculate the total resistance of the six heating elements.
Wednesday, December 14, 2016 by Jen

science
53.94 g of a substance of molecular mass 182 is dissolved in 1000g of water at this temperature.the vapour presser of water is 17.5 mmhg .calculate the vapour presser of this dilute solution
Wednesday, December 14, 2016 by calculate the vapour presser of dilute solution

Science 6
In an island ecosystem, Fox and Skunks both hunt mice and toads. Which of the following correctly describes some of these relationships? A:Skunks and mice have a competitive relationship. B:Skunks and toads have a predator-prey relationship. C:Fox and Skunks have a predator-...
Wednesday, December 14, 2016 by Evie

Science
1.which of the following species contains a similar oxidation state as in C of CH2O? CO32- , SO32- CO ,N2O,NO2_
Wednesday, December 14, 2016 by Hari

Science
Which of the following could be true of two different species that have a competitive relationship in the same ecosystem? A: one species preys on the other B:they share the same niche C:one species benefits while the other is neither helped or harmed
Wednesday, December 14, 2016 by Evie

science connexus
1.How is kudzu an environmental issue for Georgia A.kudzu can be easily removed B.kudzu can help other plants grow C.kudzu can be used to make medicine D.kudzu can destroy native forest habitats ***** 2.forest and fisheries are an example of A. abiotic factors B.energy factors...
Wednesday, December 14, 2016 by dude

Science
What acceleration does a 40 slug object acquired when 500 lbs force act on it
Tuesday, December 13, 2016 by Sggim

Science 8 A
5. Which of the following types of pollution cannot be attributed to car and truck emissions? A. Acid rain B. Sedimentation C. Ozone D. Photochemical smog I think it is Ozone.
Tuesday, December 13, 2016 by Joshua Gaspie

science
how high a cube of wood would float in water if it was 1/4 the density of that water.
Tuesday, December 13, 2016 by heles

5th grade Science
How does water tempurature give a clue about what ocean layer it belongs to? (Please help!)
Tuesday, December 13, 2016 by Morgan

Science
A forrestry crane is lifting vertically a 2 tons log with a force F = ( 9 + 2 h) where h is the height. Draw the free body diagram with the forces and use work and energy conservation to determine the speed of the log when it has risen h=6m. Apply kinematics to give the ...
Tuesday, December 13, 2016 by Anonymous

Science
1.In which temperature of water did the food coloring diffuse faster? 2.Using your knowledge of the motion of molecules, explain the results. I'm doing a discussion and I need help, can someone help me please and thank-you :)
Tuesday, December 13, 2016 by JP

Science-y Math-y Stuff
A machine with 80% efficiency does 4,000 J of work. Using the machine how much work did you do? NEED HELP! PLZ REPLY SOON
Tuesday, December 13, 2016 by NYB

science
Explain how a mutation in an individual's DNA occurs, and describe the effect it may have on the individual's traits.
Tuesday, December 13, 2016 by brandi

Science
What Is lever.
Tuesday, December 13, 2016 by Dhruv shrma

Science
The Speed Of A Train Is Reduced From 80km/h to 40km/h In A Distance Of 500m On Applying The Brakes Calculate (I) How Much Further Will The Train Travel Before Coming To Rest (II) Assuming The Retardation Remain Constant,how Long Will It Take To Bring The Train To Rest After ...
Tuesday, December 13, 2016 by Victoria

political science
1) Scenario: The President appoints Dan Evans to Senator Adams' seat when Adams resigns due to a personal scandal. This scenario is: a) Constitutional, because it is within the President’s powers to appoint Senators when one dies or resigns in the middle of his/her term. b) ...
Tuesday, December 13, 2016 by Alex

Math
A science class has 3 girls and 7 boys in the seventh grade and 5 girls and 5 boysin the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she selects are both girls?
Monday, December 12, 2016 by Tay

Math
A science class has 3 girls and 7 boys in the seventh grade and 5 girls and 5 boysin the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she selects are both girls?
Monday, December 12, 2016 by Gia

science
Calculate the molarity of 500 ml of a solution containing 100 grams of glucose (C6H12O6).
Monday, December 12, 2016 by Anonymous

science
Please help!! Methylamine has a vapor pressure of 344 torr at -25∘C and a boiling point of -6.4∘C . Find ΔHvap for methylamine. I know that ln(P1/P2)=(ΔHvap/R)(1/T2-1/T1) but it doesn't indicate whether the boiling point is the "normal boiling point". Am I on the right ...
Monday, December 12, 2016 by caleigh

Science
True or False 1) All living things must eat other living things for food. 2) Plants can make their own food. 3) Plants don't need oxygen, only carbon dioxide. 4) Animals eat plants or other animals that eat plants. 5) Many living things need oxygen to release energy from food...
Monday, December 12, 2016 by Sammie

art
i need help which of the following most influences the art of tessellations a. language arts b. social studies c. science d. mathematics please someone help im really confused
Monday, December 12, 2016 by depression

Science
If you have 10 grams of water and you add 5 grams to it how much salt water do you have?
Monday, December 12, 2016 by Katie

Science
How does increase of oxygen in wetlands affect the small fish and wading birds?
Monday, December 12, 2016 by Evie

Science
A scientist is studying a plant species in which the flower color genes are codiminant. The scientists crosses a plant with red flowers. The offspring will most likely have A. Red flowers B. White flowers C. Pink flowers D. Red flowers with white patches
Monday, December 12, 2016 by Jessica

Science
what types of wave are gererated by earthquakes?
Monday, December 12, 2016 by hayden

Science
A 1750 kg van is travelling down a 10 degrees inclined road at a speed of 6 m/s. If the driver brakes suddenly causing the wheels to lock, determine the distance L his tyres will skid on the road. The coefficient of kinetic friction between the wheels and the road is k=0.5...
Monday, December 12, 2016 by Anonymous

Science physics
what will be the acceleration due to gravity at up planet whose mass is 8 times the mass of the earth and whose radius is twice that of the earth? g=10
Monday, December 12, 2016 by Ankit

science
What type of rock forms when igneous rock is weathered and eroded?
Monday, December 12, 2016 by Julliana

science
A 12m tall tree to be photographs with pin hole camera it is situated 15 m away from camera how far should screen place from pin hole camera to obtain 15m tall image of tree
Sunday, December 11, 2016 by Anonymous

Physics
A 15 ft plank of mass 50 kg is laid across two ladders. The ladders are 5 ft apart, and the plank is laid such that 5 ft of it hang off at each end. You have a mass of 90 kg. (a) How far out past the ladder can you walk before it gets dangerous? I tried doing m1r1=m2r2 (33.33...
Sunday, December 11, 2016 by Joseph

Science
I need help on this fill in the blank science question for my study guide on Cellular Respiration "More active cells need more ______ to release more _______"
Sunday, December 11, 2016 by Gene

Science
You are pushing a friend on a sled. You push with a force of 20N. Your friend and the sled together have a mass of 60kg. Ignoring friction, what is the acceleration of your friend on the sled?
Sunday, December 11, 2016 by Justin

Science
What is equation between ethanethiol and methoxide ion?
Sunday, December 11, 2016 by Cheyenne

Science
Which statement best describes a spring tide? A - The periodic rise and fall of the water level in the oceans B - the tide if maximum range that takes place two times a month C - the difference in levels of ocean water at high tide and at low tide D - a rise in ocean water ...
Sunday, December 11, 2016 by Unicorn

Science
Luis created a clay model of earth and the sun to show how earth rotates, Luis wants to use a toothpick to represent earths axis of rotation Where should he put the toothpick A - horizontally through earth in the direction earth is traveling B - vertically through the center ...
Sunday, December 11, 2016 by Unicorn

Science
Cassie is writing an equation to show the effect of gravitational pull of the sun and moon on tidal range which equation would Cassie use to show the effect of the sun and the moon on Spring tides? A - sun + moon = spring tides B - sun + Earth = spring tides C - moon - sun = ...
Sunday, December 11, 2016 by Unicorn

Kumar
What is science?
Sunday, December 11, 2016 by Raj

Science
Cassie is writing an equation to show the effect of gravitational pull of the sun and moon on tidal range which equation would Cassie use to show the effect of the sun and the moon on Spring tides? A - sun + moon = spring tides B - sun + Earth = spring tides C - moon - sun = ...
Saturday, December 10, 2016 by Unicorn

Science
Luis created a clay model of earth and the sun to show how earth rotates, Luis wants to use a toothpick to represent earths axis of rotation Where should he put the toothpick A - horizontally through earth in the direction earth is traveling B - vertically through the center ...
Saturday, December 10, 2016 by Unicorn

Science
Which statement best describes a spring tide? A - The periodic rise and fall of the water level in the oceans B - the tide if maximum range that takes place two times a month C - the difference in levels of ocean water at high tide and at low tide D - a rise in ocean water ...
Saturday, December 10, 2016 by Unicorn

science
How many grams of sodium hydroxide is required to neutralize 73 grams of hydrochloric acid and to from sodium chloride and water
Saturday, December 10, 2016 by bala

Science
The Northern Hemisphere recives more solar energy during one half of the year than it does during the other half of the year. Which of the following happens during the year to explain this? A - the distance of the northern hemisphere from the sun changes B - The Angle at which...
Saturday, December 10, 2016 by Unicorn

science
Na2Co3 has a mass of 2.25 grams determine the Na ions present
Saturday, December 10, 2016 by kristoffer

General
What can you say about the situation of science?
Saturday, December 10, 2016 by Brajesh

Science
Ms.Sue can you hit me with a few questions and answers for studying
Friday, December 9, 2016 by Lesson 4: Plate Tectonics

Science
A car is moving from rest .After 10 sec its wheel rotate 360 times in 1 minute. If the radius of the wheel is 50 cm, then find (1) angular acceleration and (2) angular velocity after 30 sec
Friday, December 9, 2016 by Pabitra

science
how do altitude and latitude affect desert climate
Friday, December 9, 2016 by will

Science
the amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead. What is the independent variable
Friday, December 9, 2016 by Anonymous

Algebra
My science class is pretty small. There are just 18 students in the class. My teacher, Mr. Burnett, has an unusual system for picking lab partners. He has given each student a number from 1 to 18, and on lab days, he pulls two numbers out of a bag to match people up. During ...
Thursday, December 8, 2016 by Chioma

Science
To become more stable an atom that has two electrons in its outer energy level will gain two electrons A.) True B.) False That false correct?
Thursday, December 8, 2016 by Megan

Science HELP PLZZZ
What Environmental Pressures Exsists Now That May Be Shaping The Human Species. PLEASE HELP THANK YOUU
Thursday, December 8, 2016 by Gracelyn

Science
I have been thinking about this and really cannot think of a good answer plz help. What environmental pressures in the past do you think we're most important in shaping the human species as it is today? Thank you!
Thursday, December 8, 2016 by Izzy

science
A car slows down from a speed of 20m/s to rest in 25 seconds.Find its acceleration.
Thursday, December 8, 2016 by Dan

Science
Where can I find a pie chart that shows the percentage of resources used to generate electricity in the United States in 2015?
Thursday, December 8, 2016 by Kevin

Science
Describe the flow of blood to the human body, including through each of the four chambers of the heart. Explain how the blood changes as it moves through the various locations in the body.
Thursday, December 8, 2016 by PLEASE HELP ME!

Science
The force of gravity on an object on the surface of Mars is less than the force of gravity on an identical object on the surface of Earth. Which of the following explains why this is true?
Thursday, December 8, 2016 by JP

science
I need help planning a space trip
Thursday, December 8, 2016 by Jessica

Science
What is the result of c6h5ch2cooh +H^+/KMnO4
Thursday, December 8, 2016 by Priya

Science physics
How would the voltage output be affected if the armature is made to spin faster?
Thursday, December 8, 2016 by Anonymous

Science
A solution has been prepared by dissolving 0.63 g of HNO3 in 100 ml.What is its pH value ?
Thursday, December 8, 2016 by Anindita

Science
Which pair of states is most likeley to have a similar climate? Oregón arizona? Virginia and North dokota? Ohio and florida? Kansas and missouri?
Wednesday, December 7, 2016 by Ericka

science
i need a acrostic poem for the word eukaryotic
Wednesday, December 7, 2016 by madison

Science
Bb is an example of an organism's ______. "Bb" is from Punnett square
Wednesday, December 7, 2016 by Matt

Science, please help!!
I only have two questions, thank you! One difference between a point mutation and a chromosomal mutation is that ____ A. A point mutation affects the DNA of more genes than a chromosomal mutation B. A point mutation can involve a insertion or deletion, but cannot result in a ...
Wednesday, December 7, 2016 by PoPo

Science
Recall from previous activities in this lesson which era is sometimes referred to as the Age of Mammals. Locate and click on this section of the geologic time scale, and list the other possible names that could have been used to describe this era, and why.
Wednesday, December 7, 2016 by Anonymous

Science
Place the following words into the illustration below : gametes, sporophyte, gametomphyte, and zygote. explain how the terms are related
Wednesday, December 7, 2016 by Meme

Science
Write the ionic equation for dissolution and the Ksp expression for PbC12.
Wednesday, December 7, 2016 by Tammy

Science
I can dispense 300 liters of liquid continuously in one hour from a given temp. of 22*c down to 7*c. (delta T=15) How many liters and in what time can I dispense from a temp. of 24*c down to 3*c ? (delia T=21)
Wednesday, December 7, 2016 by Peter

science
What process forms high non-volcanic mountain ranges? A. One tectonic plate is splitting apart into two plates. B. Two tectonic plates are colliding and pushing together. C.One tectonic plate is sliding past another tectonic plate. D. Two tectonic plates are colliding and one...
Wednesday, December 7, 2016 by crywolf

Science
1) What physical features do producers and consumers have to help them survive in their environment
Tuesday, December 6, 2016 by Anonymous

Science
why are lunar rocks used to determine the age of a earth.
Tuesday, December 6, 2016 by Sincere Boxley

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Homework Help: Computers