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August 22, 2014

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

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Science -CHECK MY WORK-
a.) How can you describe the location of vanadium (V, atomic number 23) on the periodic table? Choose all that apply. 1. period 5, group 4 <<<My choices>>> 2. period 4, group 5 3. lanthanum series <<<My choices>>> 4. nonmetals 5. transition ...
Tuesday, January 28, 2014 at 7:41pm

Science
Think of 5 adaptations for a made up animal in an aquatic environment
Tuesday, January 28, 2014 at 6:57pm

computer Science
20 You are trying to boot your computer but your computer keeps displaying a message after the POST that says “'invalid specification”. What does the error mean?” a. an attempt to overclock the primary drive has failed...
Tuesday, January 28, 2014 at 4:43pm

computer Science
18 You started your new job as a PC tech and are at a customer’s house. The computer has failed to boot. The fan is running but the POST fails every time. What is the best thing to do to possibly find quickly? a. Check the electrical outlet the computer is ...
Tuesday, January 28, 2014 at 4:42pm

Science ~ Structures and Properties of Matter
1) Both carbon dioxide and water are pure substances. How are they similar to each other? A. both substances have a set ratio of atoms that cannot be separated by physical means. B. both substances have a set ratio of atoms that can be separated by physical means. C. both ...
Tuesday, January 28, 2014 at 4:12pm

science ~CHECK MY WORK PLEASE~
1) Both carbon dioxide and water are pure substances. How are they similar to each other? A. both substances have a set ratio of atoms that cannot be separated by physical means. B. both substances have a set ratio of atoms that can be separated by physical means. C. both ...
Tuesday, January 28, 2014 at 3:41pm

Science ~CHECK MY WORK PLEASE~
Felipe made a toy boat out of clay, but it kept sinking in water. He changed the boat's design by making it slightly wider than before. Why did Felipe's newly designed boat float on water? A. He decreased the density by increasing the volume. B. He decreased the ...
Tuesday, January 28, 2014 at 3:24pm

Science ~CHECK MY WORK PLEASE~
Both carbon dioxide and water are pure substances. How are they similar to each other? A.) both substances have a set ratio of atoms that cannot be separated by physical means. B.) both substances have a set ratio of atoms that can be separated by physical means. C.) both ...
Tuesday, January 28, 2014 at 3:21pm

science---1 question
help pls asap! 2) Which of the following is a pure substance? (1point) Chocolate milk Orange juice Seawater Hydrogen peroxide (H2O2) i first thought it was C (seawater) but is it D (H2O2)!??
Tuesday, January 28, 2014 at 3:05pm

Physical Science
A machine you designed has an efficiency of 60%. What happens to 60% of the work put into the machine, and what happens to the other 40%?
Tuesday, January 28, 2014 at 2:55pm

science
a framed painting weighs 220 newtons. the 2 wires support an angle of 120 degrees with each other. what are the tensions on the wire?
Tuesday, January 28, 2014 at 2:44pm

EARTH SCIENCE- SO STUCK
How far from an earthquake epicenter is a city where the difference between the P-wave and the S-wave arrival times is 5 minutes and 00 seconds?
Tuesday, January 28, 2014 at 1:41pm

Science
Which of the following is disadvantage of internal fertilization? A. Gametes are released into the surroundings. B. Gametes may get washed away. C. The developing zygote is protected. D. Larger numbers of eggs can be fertilized at one time
Tuesday, January 28, 2014 at 1:08pm

Physical science
State the mathematical relationship between the net force acting on an object and the time taken to change the objects momentum
Tuesday, January 28, 2014 at 12:55pm

Science
A male peacock displays his colorful tail in order to...... A. increase the success rate of asexual reproduction B. increase the gestation period. C. release gametes into his surroundings D. attract a mate
Tuesday, January 28, 2014 at 12:52pm

Science
A 15.3 kg object is dropped from an initial height of 33.5m above the ground. Find the speed when it hits the ground.
Tuesday, January 28, 2014 at 12:47pm

Science
Seahorses change color and swim together in predetermined ways before mating. The behaviors are called....... A.asexual reproduction. B. sexual reproduction. C. courtship rituals. D. budding.
Tuesday, January 28, 2014 at 12:28pm

Science
Which era of geologic time was the longest? HOLOCENE PLEISTOCENE PLIOCENE MIOCENE OLIGOCENE EOCENE PALEOCENE
Tuesday, January 28, 2014 at 12:19pm

Science
Some animals, but not humans, have an organ called a gizzard located near the top of their digestive tract. This organ is small and can contain small rocks. It also has thick, muscular walls. Based on this physical description, which of the following is most likely to be the ...
Tuesday, January 28, 2014 at 12:41am

Science: Discovering Magnetism
How is the strength of two magnetic poles related to the force between them?
Monday, January 27, 2014 at 11:58pm

Science
Why do you think the national weather service has standard conditions for measuring air temperature?
Monday, January 27, 2014 at 9:41pm

science
joey drives his car 7 kilometers north. he stops for lunch and then drives 5 kilometers south. what distance did he cover?
Monday, January 27, 2014 at 7:32pm

Science: Bird Project
I'm doing a project about the Northern Oriole. It's a mini project. What's the difference between the Northern Oriole and the Baltimore Oriole?
Monday, January 27, 2014 at 7:11pm

Physical Science
A 50.0-kg wolf is running at 10.0 m/sec. What is the wolf's kinetic energy? A) 5 J B) 500 J C) 5000 J D) 250 J E) 2500 J
Monday, January 27, 2014 at 4:07pm

Science
a 67 gram chunk of ice (Heat of Fusion = 6.0 kJ/mol) in a beaker immersed in a water bath. To produce just enough heat to melt the ice, how many moles of solid NaOH (Heat of Solution = -445.1 kJ/mol) must be added to this system to just melt the ice. (Moles)
Monday, January 27, 2014 at 3:58pm

gifted talented science
pls, help! this is hard and confusing! 1. How does runoff affect a community? (1 point) Runoff can supply new homes and businesses with the water that they need. Runoff can provide the water that fish in streams and lakes rely on. Runoff can prevent streams and lakes from ...
Monday, January 27, 2014 at 10:13am

science
The electric field 1.5 cm from a very small charged object points toward the object with a magnitude of 180,000 N/C. What is the charge on the object?
Sunday, January 26, 2014 at 11:18pm

science
The figure shows two unequal point charges, q and Q, of opposite sign. Charge Q has greater magnitude than charge q. In which of the regions X, Y, Z will there be a point at which the net electric field due to these two charges is zero?
Sunday, January 26, 2014 at 11:17pm

Science~!!!
Why does a thrown football have both potential and kinetic energy? What is the combined energy called? How do the principles of convection, conduction, and radiation explain how the water in a saucepan gets hot?
Sunday, January 26, 2014 at 8:50pm

Science
Unscramble these letters to make a sentence about stress. Eeoiieooaelnfrntssrsszrtgngcs
Sunday, January 26, 2014 at 7:56pm

physics
While working on your physics homework in your dorm room you notice a flowerpot fall past your window because someone has carelessly knocked it off the roof. Fortunately, you computer¡¯s video camera captured the whole thing so you can measure the total time the pot...
Sunday, January 26, 2014 at 6:03pm

Science
Two forces of 5 N and 7 N respectively act on an object when will the resultant of the two vectors be at a maximum?
Sunday, January 26, 2014 at 1:27pm

science
A car of mass 1500 kg accelerates up a hill of incline 8 degrees, increasing its speed from 4 ms to 16 ms over a distance of 90m. Assuming a total frictional resistance of 1000 N, calculte: a) the tractive effort between the wheels and the road surface b)the work done during ...
Sunday, January 26, 2014 at 11:28am

Science
True or false? Volcanic eruptions cause damage only when they are close to the crater's rim.
Sunday, January 26, 2014 at 10:53am

Science
A cannon ball is fired horizontally with a velocity of 50m/s from the top of a cliff 90m high,after how many seconds will it strike the plane at the foot of the cliff.at what distance from the foot of the cliff will it strike and with what velocity will it strike the ground.
Sunday, January 26, 2014 at 10:01am

Science
True or false? Volcanic eruptions cause damage only when they are close to the crater's rim.
Sunday, January 26, 2014 at 9:04am

Science
A solution is prepared by dissolving 38 g of H2S04 in 220 g water. If the density of the solution is 1.96 g/ml, find its: molality molarity mole fraction of the components of the solution normality This assignment is needed tomorrow. I really don't know the answer. I tried...
Sunday, January 26, 2014 at 8:17am

Science - 6th grade: CHECK MY ASNWER
Consider a wetland ecosystem similar to the one shown in the image below. In this ecosystem are two species: a small fish species and a wading bird species that feeds on the small fish as its main source of food. Oxygen levels are a limiting factor.Suppose that the local ...
Saturday, January 25, 2014 at 9:14pm

Science - 6th grade: CHECK MY ASNWER
If changing conditions lead to decreased oxygen levels in the stream, the carrying capacity of the stream for the trout will decrease. Oxygen level in water is therefore a(n) _____________ with respect to the number of trout that a particular stream can support. Is it "...
Saturday, January 25, 2014 at 8:32pm

Science - 6th grade
A biologist studying a desert ecosystem observes that the population of a lizard species increases following a particularly hot, dry period that causes a snake population to decline. What could the biologist hypothesize about the roles of these two species? A.The lizard preys ...
Saturday, January 25, 2014 at 7:54pm

Science
Melaine is tired all the time. No matter how much rest she gets and food she takes in she doesn't have energy. What is the organelle that is malfunctioning in her cells? Justify your answer.
Saturday, January 25, 2014 at 7:39pm

science
1. Which gas is a source of natural groundwater pollution? A. Carbon B. Oxygen C. Hydrogen D. Radon d? 2. A stream channel is formed when water A. carves a very deep and wide channel into rock. B. carries minerals into the ocean. C. creates a depression, which forms a lake. D...
Saturday, January 25, 2014 at 7:09pm

Science~!!!
1 When the air under the envelope is heated, the balloon lifts. Which of the following statements is true. a. Hot air balloons use radiation to rise b. Hot air balloons use conduction to rise c. hot air balloons use convection to rise d. hot air balloons use air resistance to ...
Saturday, January 25, 2014 at 7:06pm

Science
Is reintroducing a native predator species harmful to the local ecosystem? Why?
Saturday, January 25, 2014 at 4:22pm

science
hi I wanna know the safety precautions of using of lead
Saturday, January 25, 2014 at 3:36pm

EARTH SCIENCE
Cumulus and stratus clouds belong to which cloud group? A. Puffy clouds B. High clouds C. Middle clouds D. Low clouds Is it A? What is the basic cause of ocean tides? A. Gravitational force of volcanic activity B. Gravitational attraction between the Moon and the entire solar...
Saturday, January 25, 2014 at 11:12am

Maths literacy,life science,history,geography
I PASSED MATRIC ND I WAS DOING THESE SUBJECTS..I PASSED WITH DIPLOMA.....THIS WAS HOW I WORKED.....#MATHS LITERACY (LEVEL 3) #GEOGRAPHY(LEVEL 3) #HOME LANGUAGE(LEVEL 7) #ENGLISH(LEVEL6) #LO(LEVEL7) #LIFE SCIENCE(LEVEL3)#....I WANT TO KNW WHAT CAN I STUDY AT TUT OR AT COLLEGE.....
Saturday, January 25, 2014 at 9:53am

materials science engineering
Identify the [221] vector.(crystallographic directions qns) The answer given corresponds to 0.5 in x direction,0.5 in y and 1 in z. Why is it not [1 1 0.5], the simply reduced form. The ans is the reciprocal of [221], which puzzles me since this is not a plane.
Saturday, January 25, 2014 at 1:50am

10th grade Science
Explain, physiologically, how you would decide to use ice or heat on an injury? My book doesn't have any good info on this question. Is there a reputable website or article to get info to answer this question?
Friday, January 24, 2014 at 7:27pm

Science
Can someone please check my answers and if they are wrong can you help me fix them? Thank so much!! 1. Which of the following determines the strength of the force of gravity between two objects? Check all that apply. (2 points) the speeds of the objects the masses of the ...
Friday, January 24, 2014 at 1:08pm

science
Which statement best compares an atom to an ion? A.An ion is an atom that has lost its charge. B.An ion is an atom that has gained or lost protons. C.An ion is an atom that has gained or lost electrons. D.An ion is an atom that has a different number of neutrons.
Friday, January 24, 2014 at 11:43am

science
How do two isotopes of the same element compare with each other? A.They have the same number of protons but a different number of electrons. B.They have the same mass number but a different number of protons. C.They have the same mass number but a different number of neutrons...
Friday, January 24, 2014 at 11:43am

science
How can atoms of two elements that have a different number of protons have the same charge? A.by also having a different number of neutrons B.by also having a different number of electrons C.by having the same mass number D.by being the same size atoms
Friday, January 24, 2014 at 11:42am

science
How are all atoms of iron different from the atoms of all other elements? A.number of neutrons B.charge on the atoms C.mass number D.number of protons I guessed. I knew the answer. 123456789101112131415161718192021
Friday, January 24, 2014 at 10:47am

science
How are the atoms of two different elements always similar to each other? A.They react in the same way. B.They have the same number of neutrons. C.Electrons and protons orbit the neutrons. D.Electrons orbit the nucleus.
Friday, January 24, 2014 at 10:43am

Maths and science
In how many ways can a lift holding eight passenger carry a part of thirteen in two journey?
Friday, January 24, 2014 at 10:37am

Physical Science 9
What is the chemical equation for the rusting of iron carbide. I tried it myself,but I ended up with iron hydroxide rather than iron oxide. Help, Please, and thank you.
Friday, January 24, 2014 at 8:35am

science
A 1.92 × 103 kg car accelerates uniformly from rest to 12.4 m/s in 3.77 s. What is the work done on the car in this time interval?
Friday, January 24, 2014 at 7:49am

science
A 1.92 × 103 kg car accelerates uniformly from rest to 12.4 m/s in 3.77 s. What is the work done on the car in this time interval?
Friday, January 24, 2014 at 7:49am

Science
RNA is to U(Uracil) as DNA is to ? a. Cytosine (don't think so) b. Guanine (don't think so) c. Thymine d. Adenine
Friday, January 24, 2014 at 4:07am

Science
Which of the following functions like a fulcrum in a lever? A. tendons connecting muscle to bone at a joint. B. ligaments connecting bones at a joint. C. two muscles working as a pair to move a joint. D. two bones meeting at a joint. B or D?
Friday, January 24, 2014 at 12:41am

Science
Which of the following functions like a fulcrum in a lever? A. tendons connecting muscle to bone at a joint. B. ligaments connecting bones at a joint. C. two muscles working as a pair to move a joint. D. two bones meeting at a joint.
Thursday, January 23, 2014 at 10:40pm

Science??!!! :/
I don't get any of this, plz plz, explain these to me!! 1.why Earth and other planets were not solid when they formed during the beginning of the Precambrian, approximately 4,600 million years ago (MYA). What was this particular time period called, and why is this time ...
Thursday, January 23, 2014 at 10:38pm

science gr.8 science fair topic ideas
what are some ideas for science fair projects gr.8?!?! and please give an experiment with it thank u!!
Thursday, January 23, 2014 at 10:30pm

science
Explain why 100 percent solid bricks are special. Give examples.
Thursday, January 23, 2014 at 9:04pm

science
Imagine you are an energyexpert on a planning council for a new town to be built on an island. Evaluate resources or methods you will suggest that the new town use. Justify your choices and provide possible challenges to the project.
Thursday, January 23, 2014 at 7:37pm

Science
Which of the following functions like a fulcrum in a lever? A. tendons connecting muscle to bone at a joint. B. ligaments connecting bones at a joint. C. two muscles working as a pair to move a joint. D. two bones meeting at a joint.
Thursday, January 23, 2014 at 7:06pm

science... PLEASE HELP!
Please explain how the movement and position of the particles change when a liquid bevomes a solid.
Thursday, January 23, 2014 at 5:46pm

science
An 8kg bowling ball is rolling in a straight line toward you. If its momentum is 16kg m/sec, how fast is it traveling?
Thursday, January 23, 2014 at 5:31pm

science... PLEASE HELP!
Why does an investigator in an experiment change only one variable?
Thursday, January 23, 2014 at 5:03pm

science... PLEASE HELP!
Please describe a constant in an experiment.
Thursday, January 23, 2014 at 4:17pm

Science
Can anyone help me come up with a science project idea ?
Thursday, January 23, 2014 at 4:02pm

science
if 4 cars were going 100m the entire time what happens to speed,velocity and accelerationas one car completes one full lap
Thursday, January 23, 2014 at 12:40pm

EARTH SCIENCE
1. Which gas is a source of natural groundwater pollution? A. Carbon B. Oxygen C. Hydrogen D. Radon D? 2. A stream channel is formed when water A. carves a very deep and wide channel into rock. B. carries minerals into the ocean. C. creates a depression, which forms a lake. D...
Thursday, January 23, 2014 at 12:31pm

Science :(
Describe how the Triassic period was a transitional time period during the Mesozoic era. Explain why the boundary between the Triassic and Jurassic periods is similar to the boundary between the Permian and Triassic periods.
Thursday, January 23, 2014 at 9:49am

physical science
when will the resultant of the two(5N ,7N)vectors be at maximum?
Thursday, January 23, 2014 at 4:09am

chemical science
what is the van't Hoff factor for MgSo4.7H2O and ZnSo4.7H2O?
Thursday, January 23, 2014 at 3:11am

science
If the object is moved to a point 3 cm away from the lens. what is the new position, height, nature of the image?
Wednesday, January 22, 2014 at 11:33pm

science
An object 3 cm is high is placed 24 cm away from a convex lens of focal length 8 cm. Find nature position and height of the image?
Wednesday, January 22, 2014 at 11:20pm

science
what is heterogeneous mixture
Wednesday, January 22, 2014 at 10:21pm

science
1.what similarities do nuclear energy and chemical energy share?pick all that apply A.both are types of kinetic energy. B.both are types of potential energy C.both involve magnetic energy D.both involve stored energy (I PICK B AND D) 3.the energy an object has due to its ...
Wednesday, January 22, 2014 at 8:46pm

Science
Which of the following is the minimum level of structure needed to preform the function of waste removal? A. Body System B. Tissue C. Cell D. Organ I chose A for my answer, is it correct? Thanks. :)
Wednesday, January 22, 2014 at 8:28pm

science(answer please)
please answer these 1.what similarities do nuclear energy and chemical energy share?pick all that apply A.both are types of kinetic energy. B.both are types of potential energy C.both involve magnetic energy D.both involve stored energy 3.the energy an object has due to its ...
Wednesday, January 22, 2014 at 8:27pm

science
A class is learning about acceleration due to gravity. Their plan is to climb a ladder and drop different kinds of balls from the same height at the same time. They will repeat this for ten trials, recording the data after each test. A video will be made of the activity to ...
Wednesday, January 22, 2014 at 8:22pm

8th CCA Science
1. Under which of the following conditions would a fossil most likely form? A. A living thing dies and sediment is very slowly deposited on top of its body. B. A living thing dies and sediment quickly covers its body.**** C. A living thing dies and its skeleton is left exposed...
Wednesday, January 22, 2014 at 7:01pm

science help plzzz
Multiple Choice 1. Which of Earth's spheres contains mountains, valleys, and other landscapes? (1 point) atmosphere biosphere geosphere hydrosphere 2. Which of the following are examples of destructive forces? (1 point) ice wind both ice and wind neither ice nor wind 3. ...
Wednesday, January 22, 2014 at 6:44pm

Science help please
In class we have to think of a testable question for our science fair project our teacher is making us write 5 things I like then write make it into a testable question . EX: she said she likes sledding What is the effect of sled shape on sled speed ? I need help coming up ...
Wednesday, January 22, 2014 at 6:11pm

technology in the classroom
Of the following, who do we consider to be the father of computer-assisted instruction?
Wednesday, January 22, 2014 at 6:09pm

science
A rider with his bike, weighing a total of 300 kg jumps off a sloped ramp with a speed of 5.5 m/s. How high will the biker jump with this speed?
Wednesday, January 22, 2014 at 3:43pm

computer Science
20 You are trying to boot your computer but your computer keeps displaying a message after the POST that says “'invalid specification”. What does the error mean?” a. an attempt to overclock the primary drive has failed...
Wednesday, January 22, 2014 at 12:33pm

psychology
20 You are trying to boot your computer but your computer keeps displaying a message after the POST that says “'invalid specification”. What does the error mean?” a. an attempt to overclock the primary drive has failed...
Wednesday, January 22, 2014 at 12:33pm

Physical Science
1) Carbon dioxide is obtain from the air and changed into carbohydrates oxygen during the process of fossilization. respiration. digestion. photosynthesis. 2) Which sequence of processes must occur for an atom of carbon to go from car to tree? respiration, decomposition. ...
Wednesday, January 22, 2014 at 10:50am

science
What is the acceleration of a 7kg rocjet if a force of 68.6 kg m/s/s (N) is used to move it away from the earth
Tuesday, January 21, 2014 at 7:53pm

science
Three people push a piano on wheels with forces of 130 N to the right, 150 N to the left, and 165 N to the right. What is the strength and direction of the net force on the piano?
Tuesday, January 21, 2014 at 6:35pm

intro to computers
what type of device is characteristic of an enterprise environment? a workstation used by a retired person. a workstation used at an engineering firm. a tablet computer used by an elementary school student a notebook used by a college student
Tuesday, January 21, 2014 at 6:33pm

science
How might the formation of Pangaea have led to mass extinctions at the end of the Permian period, about 250 million years ago?
Tuesday, January 21, 2014 at 6:31pm

science
A dog (canis familiaris) and a coyote (canis latrans) will readiliy mate in captivity and their offspring are healthy and fully fertile. Are we justified in saying they are distinct species? What might this tell us about the history of dogs and coyotes?
Tuesday, January 21, 2014 at 6:29pm

science
What is the density of Radon (Rn) gas at STP (standard temperature and pressure)? How do I solve/set up this problem? Thank you!
Tuesday, January 21, 2014 at 5:32pm

science
Why did Charles Darwin talk about pigeons (how breeders produced many shapes, sizes, and colors of pigeons, all starting from a wild pigeon) in his book On the Origin of Species?
Tuesday, January 21, 2014 at 4:49pm

Science
common pathways for food and air are the (1), which connects to the mouth, and (2), which connects to the larynx. Epithelium in this region is (3), which provideds good protection from friction. Three bands of skeletal muscle, the (4) propel food into the (5). Entrance to the ...
Tuesday, January 21, 2014 at 4:36pm

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