Thursday
February 23, 2017

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

science
Proper condition for maximum yei of so3 in reaction 2so2+o2=so3+HEAT
Monday, February 6, 2017 by muna

Science
The mutual gravitational attraction between two masses in space is 686 Newtons. What is the new gravitational force between these masses if the distance between them is increased by a factor of 5.6? To be graded correctly, enter the new weight in Newtons (numbers only, no text...
Monday, February 6, 2017 by Erika

Science
An element X has 6protons and 8neutrons in it .what is the charge of the element
Monday, February 6, 2017 by Suryajith

Science
Physics A scientific instrument weighing 98 pounds on the Earth is transported to another planet whose mass is 1.7 Earth masses and whose radius is 0.7 Earth radii. What does this instrument weigh on this planet? To be graded correctly, enter the new weight in pounds (numbers ...
Monday, February 6, 2017 by Erika

science
A certain conductor has a risestnace of 5 ohms at 0oC. if the temperature coeffiecient is 0.002/0oC, find its resistance at 2000oF?
Monday, February 6, 2017 by Mharco D. Dela Vega

Physical Science
A 50.0-kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 26.0° below the horizontal is applied to the box. What is the minimum coefficient of static friction between the box and the surface required for the box to remain stationary? 1) 0.441 2...
Monday, February 6, 2017 by Varusha

SCIENCE
3) You add 36 g of MgSO4 to pure water to a final volume of 200 mL. What concentration of solution did you make ? Express the results as percentage, % (w/v).
Sunday, February 5, 2017 by LIN

9th grade physical science
the density of copper is 8.92g/cm^3. If you plotted the mass of copper in grams versus the volume in cubic centimeters, what would the slope of the line be?
Sunday, February 5, 2017 by anna

Science
Pls help me solve this question pls. A stone of mass 6.5kg is thrown vertically upward with velocity with 10m/s find a. the potential energy at the greatest height and the value of h .b the kinetic energy of reaching the ground again(g=10m/s2) in physics?
Sunday, February 5, 2017 by Joseph

science
if a strong odour is smelt continuously for some time the sensation ofsmell of that substance weakness why?
Sunday, February 5, 2017 by adma

science
A hot air balloon is ascending with a constant velocity of 5m^s-1 when somebody in the balloon throws a bottle upward with a velocity of 2m^s-1 if the balloon is 55m above tge ground when this happens calculate the time taken for the bottle to reach the ground
Sunday, February 5, 2017 by lulama

Science
At what position a candle of length 3 cm be placed in front of a convex lens so that it's image of length 6 cm be obtained on a screen placed at distance 30 cm behind the lens
Sunday, February 5, 2017 by Paresh

Science
a bullet of mass 0.01kg is fired from a gun weighting 5 kg. If the initial speed of the bullet is-250 m/sec, calculate the speed with which the gun recoils
Saturday, February 4, 2017 by Priyansh

natural science
What volume of copper ( density 8.96 g/cm3 ) would be needed to balance a 1.15 cm3 sample of lead ( density 11.4 g/cm3 ) on a two-pan laboratory balance?
Saturday, February 4, 2017 by nachelle

Science
How many btu require to change 10 pounds of ice at 20F to steam at 220F
Saturday, February 4, 2017 by Darreus

Science
a bullet of mass 0.01kg is fired from a gun weighing 5.0kg . If the initial speed of bullet is 250 m/sec, calculate the speed with which the gun recoils
Saturday, February 4, 2017 by Priyansh

Science
Suppose that three samples of water are prepared as described: addition of carbon dioxide, addition of oxygen, and degassed to remove all gases. Three identical Elodea plants are placed in each of these water samples. How will the rate of bubble formation compare in the three ...
Friday, February 3, 2017 by Candi Girl

Science
Carrying capacity is the maximum number of ___________ that an ecosystem can support 1.different species 2.individuals in a population**** 3.habitats 4.limiting factors In an island ecosystem, a species of beetle feeds on leaves of a shrubby plant. A species of songbird preys ...
Friday, February 3, 2017 by Anonymous

Science
If a bowling ball with a mass of 2.75kg. travels 27 meters in 7.6 seconds , how fast is it traveling?
Friday, February 3, 2017 by Daniel

science
A copper calorimeter weighs 100g when empty, 400g when half full of water at 0 degrees Celsius, and 450g when ice at 0 degree Celsius is added. When some steam is passed into the mixture, its temperature is raised by 10 degrees Celsius. Find the quantity of steam added
Friday, February 3, 2017 by agajere

science
A stone is dropped from a balloon going up with a uniform velocity of 5.0 m/s. If the balloon was 50 m high when the stone was dropped, find its height (in meters) when the stone hits the ground. Take g = 10 m/s2 (A) 50 (B) 58 (C) 68 (D) 78.5
Friday, February 3, 2017 by sam

science
The work of which scientist(s) helped to explain light's ability to propagate through a vacuum? A. Maxwell ==B. Davisson and Germer C. Fresnel, Fraunhofer, and Arago D. Newton An object that has a height of 0.4 meter is placed at a distance of 0.7 meter from a concave ...
Thursday, February 2, 2017 by please help

Science 6th grade
PLEASE HELP Explain why the outer planets did not lose the lighter gasses in the atmosphere.
Thursday, February 2, 2017 by Jewl

science
when building a house, wich of the following is a simple machine that a construction worker would use? A)plywood B)safety hat C)cement D)pulley
Thursday, February 2, 2017 by little kakashi hatake

science
remy noticed that after oiling his skateboard wheels,it was easier to reach the speeds he needed to preform tricks how did the oil help A) the oil reduced friction between the moving parts of the skateboard B)the oil increased friction between the moving parts of the ...
Thursday, February 2, 2017 by little kakashi hatake

science
you do 185 J of work pulling a cart up a ramp. if the ramp does 153 J of work,what is the efficient of the ramp? A)82.7 percent B)121.0 percent C)32.0 percent D)338.0 percent
Thursday, February 2, 2017 by little kakashi hatake

science
to chop wood you apply 50.0 N of force to an ax. the ax supplies 600.0 N of force to the wood. what is the mechanical advantage of the ax? A)650.0 B)8.3 C)12.0 D)0.0833
Thursday, February 2, 2017 by little kakashi hatake

science
a box of cleaning supplies weighs 15 N. if the box is lifted a distance of 0.60 m, how much work i sdone? A)0.040 J B)9 J C)14 J D)25 J
Thursday, February 2, 2017 by little kakashi hatake

Science
A car was travelling at the speed of 20m/s when the driver saw a cat on the road 40 m away. He step on the brake and the car came into a halt after 6 seconds. How far did the car travel. What will happen to the cat?
Thursday, February 2, 2017 by Cecile Bambalan

science
Define the photoelectric effect?
Thursday, February 2, 2017 by niraj

science
Depth of water in swimming pool is 1.5m. When we see from top the depth appears to be_.
Thursday, February 2, 2017 by light

maths
In a class, 22 offer maths, 21 offer English and 25 offer science. 4 students offer all three subjects and 36 offer exactly one subject. If all the students offer at least one of the subject, then how many offer two subjects?
Thursday, February 2, 2017 by Courage Danquah

science
calculate the moles of oxygen atom in 6.2 g of calcium carbonate?
Thursday, February 2, 2017 by j

science
Bacterium called pathogen. The example of a beaker with a single bacterium in it. That divides and doubles itself. If you place the first bacterium into the beaker, how much time it takes to half full? And how much time it takes to full? if we put a bacteria in 720 milliliter ...
Wednesday, February 1, 2017 by sameer

Science
In what levels are producers and tertiary consumers, respectively found in an energy pyramid? I am kind of lost on how I am supposed to determine what level a producer is at on a pyramid? Can you please help me with this.
Wednesday, February 1, 2017 by Donald

Science
Which level of consumer is an owl in the following chain: grass, cricket, mouse, and owl? I do not know understand this at all can you please explain this so I can get a better understanding of this?
Wednesday, February 1, 2017 by Donald

Science
What factor is described when low water levels are causing animals to die from dehydration? I am confused on this. Please help. I don't even know where to begin looking
Wednesday, February 1, 2017 by Donald

Science
What structure traps the pollen
Wednesday, February 1, 2017 by Garth

science, pysics
A child having a mass of 37 kg sits 0.2 m from the center of a merry-go-round that is rotating with a period of 36 s. What is the centripetal force acting on the child? What is the centripetal force in Newtons?
Wednesday, February 1, 2017 by Kat

physics, science!
A child having a mass of 37 kg sits 0.2 m from the center of a merry-go-round that is rotating with a period of 36 s. What is the centripetal force acting on the child? What is the centripetal force in Newtons?
Wednesday, February 1, 2017 by Kat

physics, science!!!
A child having a mass of 37 kg sits 0.2 m from the center of a merry-go-round that is rotating with a period of 36 s. What is the centripetal force acting on the child?
Wednesday, February 1, 2017 by Kat

physics, science
What centripetal force is needed to keep a 10 kg object moving at a constant speed of 10 m/s in a circle having a radius of 11 m?
Wednesday, February 1, 2017 by Kat

Science
What is the average velocity of a car that moved 25 km east and 40 km wear in 2 hours
Wednesday, February 1, 2017 by Kalira

science
Which of the following set of terms could be used in a description of the peripheral nervous system? A)motor neurons and sensory neurons B) brain and spinal cord C)motor neurons and brain D) sensory neurons and spinal cord
Wednesday, February 1, 2017 by HELP

Science
During a lunar eclipse, does the Moon enter the Earth’s shadow from the east or the west? Explain your answer. Wouldn't it be the east because that's the same way the moon rises normally? So if it normally rises in the east it would do that again.. or would it be west ...
Wednesday, February 1, 2017 by Mykayliah

science
what word can these letters make rorpsfgnloadeeas?
Wednesday, February 1, 2017 by Ranell

science
what do you think should be the motion of an airplane preparing for take off?
Wednesday, February 1, 2017 by abbey

science
how will you describe the speed of the plane from the rest until it takes off?
Wednesday, February 1, 2017 by abbey

science
Bacterium called pathogen. The example of a beaker with a single bacterium in it. That divides and doubles itself. If you place the first bacterium into the beaker, how much time it takes to half full And how much time it takes to full
Wednesday, February 1, 2017 by sameer

physical science
two forces of 60 and 80 newton respectively act simultaneously at the point ...sketch and determine their resultant force using tail to tail method and tail to tail method
Tuesday, January 31, 2017 by kgahliso mahlaba

Science
Explain what Maria and craters are and how they formed.
Tuesday, January 31, 2017 by Justin

Supportive learning environment
The ideal early childhood schedule for preschool children contains which of the following? A. Frequent changes in activities so children don't get bored B. A 45-minute circle time activity C. Integrated activities within a large block of time D. A specific time for each ...
Tuesday, January 31, 2017 by Priscila

Science
Hello again, I'm really sorry... We were learning about pH scales, bases, and acids. It was kind of hard in a way but it was alright, I'm kind of in the hang of it now. But this question really stumps me. "Why is it important for the pH of blood to remain constant?" My unsure ...
Tuesday, January 31, 2017 by Hatsune Miku

science
The orbits of planets being elliptical was one the planetary laws developed by ==A. Kepler. B. Brahe. C. Ptolemy. D. Copernicus. If a car travels from Town A to Town B on one road at different speeds and stops at red lights, knowing the distance between the towns and the ...
Tuesday, January 31, 2017 by Check answers please

physical science
Look at the graph below measuring the speed of a truck and answer the following 2 questions: a) If the graph represents speed, what is measured on the x and y axes? You need to specifically identify which axis is which. b) Based on what the y axis measures, explain the motion ...
Tuesday, January 31, 2017 by Hi

Science
Name 2 of each types of resources
Monday, January 30, 2017 by Shyane

math
John has $20 to spend at a used bookstore. He wants to buy twice as many science fiction books as mystery books. Mystery books sell for $1.25. Science fiction books sell for $1.75. Tax is included in the prices. What is the greatest number of science fiction books that John ...
Monday, January 30, 2017 by edgard

Science
The doctor ordered an IV infusion of NaCl at 125 ml/hr for the next 48 hours. THe drop factor for the IV tubing is 10. 1) calculate the gtts/min Answer: 23 gtts/min 2) calculate the total amount of IV fluid the client will receive in 48 hours. I got 6000 ml.... Anyone check ...
Monday, January 30, 2017 by John

physical science
Look at the graph below measuring the speed of a truck and answer the following 2 questions: a) If the graph represents speed, what is measured on the x and y axes? You need to specifically identify which axis is which. b) Based on what the y axis measures, explain the motion ...
Monday, January 30, 2017 by plz help

physical science
If you push a 900N refrigerator with the same force as you lift a 40N dumbbell, the dumbbell will move faster. which of Newton’s laws is this an example of? Explain how you know please. i know it's not the 3rd law.
Monday, January 30, 2017 by Hi

science
I have completed a back titration with an antacid tablet weighing 1.25 mg and 0.1494 M concentration of HCL (100 mL was added) and the concentration of NaOH is 0.1422 M. Determine the concentration of HCl remaining in the volumetric flask
Monday, January 30, 2017 by ashley

Science
How many molecules are in C6H12O6 or glucose?Need the answer by Feb-1-17. Thanks
Monday, January 30, 2017 by Shannon

science
I need help constructing a graph showing and predicting when two toy cars traveling at different speeds when the fast car can pass the slower car.The fast car traveled 1.5 meters in .87 sec.and .94 sec and .97 sec in three trials. The slow car traveled 1.5 meters in 1.1 sec ...
Monday, January 30, 2017 by Betty

Science
Why do Oil & Water not mix? I'm so confused (This is just something I wanna know, no multiple choice) also, Ms. Sue, If you see this, Hi
Monday, January 30, 2017 by Melanie

Science
The (blank) has given scientists information about past life on Earth.
Monday, January 30, 2017 by Aaron

Science Please Help
Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.
Monday, January 30, 2017 by Naomi

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 on a $1,250 ...
Monday, January 30, 2017 by AsHlYbUg295

Science
A train travelling north at a speed of 50km/h and another train travelling in the same direction at a speed of 8km/h.Calculate the resultant velocity.
Monday, January 30, 2017 by Kago Koonne

Science
Predict when a fast toy car can pass a slower toy car . I marked off a distant of 1.5 meters and recorded the time it took the cars to reach the finish line. How do I create a graph and make a prediction? The fast car times were .87 sec. ,.94 sec. ,and .97 sec. the slow car ...
Monday, January 30, 2017 by Betty

Science
By using different types of technology like satellites, radar, and river gauges, scientist can reduce flood damage and loss of life A:Models B:Automated weather systems C:Nonpoint sources D:Advanced warnings I think the answer is D. Thank you for your help.
Monday, January 30, 2017 by Jaden

Earth Science
What are the maximum and minimum dimensions (the size range) for the following particle sizes? a) cobble: b) pebble: c) sand: PLEASE HELP
Sunday, January 29, 2017 by Maya

Science
Suppose you are pulling a wagon with th handle at an angle.how can you make your task easier
Sunday, January 29, 2017 by Devon

7th G science
What is/are the main factor(s) that determine(s) the height of a plant (genetics, environment, or both)? Explain your answer. I think that only genetics play a role but I am not sure.
Sunday, January 29, 2017 by softball lover

Science
A white eyed male Drosophila is crossed to a red eyed female all the resulting progeny have red eyes. A. This shows that eye colour is sex linked. B. This shows that eyes are recessive to white eyes. C. Both of the above. D. None of the above I think it is C. Am I right ? ...
Sunday, January 29, 2017 by Kathy

science
n a cross between homozygous red-eyed "Drosophila" females and white-eyed males,? A. All the offspring will have white eyes or B. Ditto to A.> red eyes or C The male offspring will have red eyes and female offspring white eyes. I thin the answer is B or A Please help really...
Sunday, January 29, 2017 by emma

Science
The surface r of a liquid depends on the density p acceleration due to gravity g nd height h use the method of dimension to derive the actual relationship between this quantities. An object is tie to the end of a string move in a circle the force exerted by the string depend ...
Sunday, January 29, 2017 by Mary

Science
A battery of 3cells in series each of emf 2v and internal resistance0.5 is conected to a 2resistor in series with a par
Sunday, January 29, 2017 by Monday Japheth, SALAMA High School, Physics

Science
If a tree lost all its leaves, is it dead?
Sunday, January 29, 2017 by Art

Mathematics
Of the 82 pupils in grade 9, 73 take mathematics 56 take science, all those who take science take mathematics. Show the information on the venn diagram. How many take neither mathematics nor science?
Sunday, January 29, 2017 by Philip Chiwala

Science
Starting from rest an airplane moves with a constant acceleration of 2m/s for 30 seconds before it takes off A. How far does it travel down the runway before it takes off ? B. What's it's final velocity ?
Sunday, January 29, 2017 by Anonymous

solar science physics
Consider a lead-acid battery with 500 Ah capacity and a rated voltage of 12 V. What is the total capacity of energy in watt-hours that can be stored in the battery?
Sunday, January 29, 2017 by pritam

solar science physics
Which of the following statements is NOT true about solar inverters? A stand-alone inverter is supposed to work as an AC voltage source for a specified range of AC loads. An ideal grid-tied inverter has its operational voltage and frequency synchronized with those of the grid...
Sunday, January 29, 2017 by pritam

English
Most of the following sentences lack at least one period, question mark, exclamation point, comma, semicolon, or colon. Add the correct punctuation where it is needed. I have added punctuation in second set of sentences. 1.African American author Maya Angelou read from her ...
Sunday, January 29, 2017 by Hayden

science
What is the balanced molecular equation for titration of oxalic acid?
Sunday, January 29, 2017 by pooja

solar science physics
On the left-hand side of the figure below a III-V triple junction solar cell is shown. On the right-hand side, the J-V curves of the individual component cells and the multi-junction solar cell are shown. Which junction corresponds to sub cell 3?
Sunday, January 29, 2017 by pritam

Computer Programming
How to recursively count how many positive numbers are in an array in java without ArrayList?
Saturday, January 28, 2017 by Doug

7th G science
1. What is/are the main factor(s) that determine(s) that your plants will grow into bean plants (or other fast-growing plants that you used for your experiment) and not some other type of plant (genetics, environment, or both)? Explain your answer A. Genetics is the main ...
Saturday, January 28, 2017 by softball lover

SCIENCE
In each of the following acid-base reactions, identify the Bronsted acid and base on the left, and their conjugate partners on the right: (a) HPO3 2- + HSO3 - → H2PO3 - + SO3 2- (b) C6H5NH3 + + OBr- → HOBr + C6H5NH2 (c) H2PO3 - + CH3CH2CO2H → CH3CH2CO2 - + H3PO3
Saturday, January 28, 2017 by Ash

computer science
write a program using pseudocode that give out the students grade after inputting his marks A*>=90 A>=80 B>=70 C>=60 D>=40 E>=30 U<30
Saturday, January 28, 2017 by Gerald

science physics solar
A given monocrystalline silicon solar cell has the following specifications: Isc=5A Voc=0.6V 72 identical cells with the above specifications are to be interconnected to create a PV module. What is the open-circuit voltage (in V) of the PV module if all the solar cells are ...
Saturday, January 28, 2017 by pritam

science physics solar
In state-of-the-art crystalline silicon solar cells technology, based on p-type silicon, a back surface field (BSF) is implemented. This BSF is implemented, because in this way: The barrier for hole collection at the back contact is reduced, increasing the surface ...
Saturday, January 28, 2017 by pritam

solar science physics
In state-of-the-art crystalline silicon solar cells technology, based on p-type silicon, a back surface field (BSF) is implemented. This BSF is implemented, because in this way:
Saturday, January 28, 2017 by pritam

science physics solar
We have discussed that a bare crystalline silicon surface contains many defects which act as SRH recombination centers. How can the surface recombination at the air/n-silicon interface be reduced?
Saturday, January 28, 2017 by pritam

Science- Cells
what connection do you see between the nerve cell's structure and its functions?
Saturday, January 28, 2017 by Anonymous

Science- Cells
2 adjectives to describe each cell- nerve cell muscle cell bone cell and blood cell
Saturday, January 28, 2017 by Anonymous

Science - Geosystems
Please help me with these for 4 questions on my Geosystems homework. 1) Mass movements are classified based on _________. A. their speed and moisture content B. the type of destabilizing event C. whether or not a geomorphic threshold was crossed D. the steepness of the slope 2...
Saturday, January 28, 2017 by Lilly

psych
identify if it is Fixed Ratio (FR), Variable Ratio (VR) Fixed Interval (FI) Variable Interval (VI) VR 1. Getting paid for every widget you put on a machine in a factory VI 2. Pop (surprise) quizzes VR 3. Slot machines at Foxwoods casino FI 4. Getting to play computer games ...
Friday, January 27, 2017 by SAM

Science
Two drivers start at the same time to make a 100- km trip. Driver 1 takes 2 hrs to complete the trip. Driver 2 Thames 3 hrs, but stops for an hour at the halfway point. Which driver had a greater average speed for the whole trip? Explain
Friday, January 27, 2017 by Ali

MathHelp!!SOS!!
What is the amount of tax sales owed on a $550 laptop computer if the tax rate is 7%?
Friday, January 27, 2017 by PleaseGiveAnswerQuickSOS

biology
1)Can you suggest reasons why a phylogeny based on molecular evidence and a phylogeny based on morphology and other evidence might not be exactly the same? 2) Zoologist worldwide are sequencing a mitochondrial gene CO1 (cyctochrome c oxidase subunit), which is found in all ...
Friday, January 27, 2017 by Henry

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Homework Help: Computers