Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

computer,science, java
Inorder to motivate the employees, the company has decided to announce the different types of bonus depends up on the employee’s Grade. If the employee belong to Grade A bonus=20% basic Grade B bonus=15% basic Grade C bonus=10% basic Grade D bonus=7% basic Grade E bonus=5% ...

science
Write a java program using classes and object to read the em[loyee code (Integer), Imployee name (string), Basic salary )double), Category (Character)then calculate the bonus(double)and the total salary(double)eligible for each employ. The output should have the employee code...

science
Explain the purpose of a control in a scientific experiment

science
If a scientist wished to to determine the effect of a certain herbicide on wee growth he would include a control in the investigation. Suggest a suitable control in this case.

science
Describe how you would investigate effect of ph on enzymes rate. Draw a labelled diagram to show how you carried out the experiment

science
An astronauts boots weigh 100N on earth where the acceleration of free fall is 10m/s2. How much will they weigh on Mars where the acceleration of free fall is 4m/s2?

science
write balanced equation showing the reaction occurs when lead is added to a solution containing a mixture of aqueous silver nitrate and copper(ii)sulfate

science
An astronauts boots weigh 100N on earth where the acceleration of free fall is 10m/s2. How much will they weigh on Mars where the acceleration of free fall is 4m/s2?

science
Explain how end product inhibition can control enzyme activity in living cells

science
What is the unit for measuring enzyme activity? What is turnover number

science
A ray of light is incident at 40 degrees to a plane mirror. What is the angle between the incident and the reflected rays?

science
if there was a source of pollution in Smithtown bay, what role could a physical oceanographer play in understanding the impacts to other parts of long island sound?

maths and science
A block of wood of volume 25 cm floats in water with 20 cm of its volume immersed calculate it's density and weight

science
w YoState, most of the surface bedrock was formed as a result of which process? a. deposition of sediments into a vast of sea. b, folding of non sedimentary rock. c. metamorphism of sedimentary rock. d. intrusion of magma into sedimentary rock.

science
a mushroom absorbs food through its

science
At what temperature do hydrdogen molecule have the same rms speed as nitrogen molecule at 455 degree celsius

Science
What will be the final temp of the ice of 20g when it is heated to 1600 Cal

science
A ball of mass 100 gm is thrown vertically at a speed of 10 m/s . find its kinetic energy

Science
if two spheres,having a weight of 10kg each at a distance of 50 cm find the gravitational force between them

Science
Mass of ice is 0.015 kg and that of water is 0.05 kg. Both are at 0°C. Find the final mass of ice and water.

Science
D)The blood of the vessels near the small intestine is often acidic after a meal. suggest a reason for this.

Computer Science
C program to find given string has alphabets, digits and special characters in it

Science
Determine the pH of a 0.62M NH4NO3 solution at 25oC. The Kb for NH3 is 1.76x10-5. Calculate Ka

Mathematics
Francine used her computer for 2 1/8 hours Tuesday evening and for 2 1/4 hours on Wednesday evening. Which is the best estimate of the time Francine used her computer on Tuesday and Wednesday evenings? A) about 1/4 hour B) about 3hours C) about 4 hours D) about 5 hours

Biology science
What is the nature of the phloem vessels after they are stained in the microscopic sections

Science
Identify the nature of the walls of the phloem vessels after they are stained in the microscopic sections

Science
Determine the pH of a 0.62M NH4NO3 solution at 25oC. The Kb for NH3 is 1.76x10-5. Calculate Ka

Engineering science
A man throw a ball upward with velocity of 30m/s.1.5 seconds he throw anothe wih the same velocity. Identify at what high will te ball pass one another?

Applied Science Chemistry
A 0.5g mixture of Cu and CuO was treated with hydrogen at elevated temperature. CuO was reduced to Cu. Q1.) write a balanced equation for the reaction Q2.) before the experment, calculate the minimum amount in mole of hydrogen required to ensure the reduction is completed

science
if yourweight is 60N on earth,how far should you go from the center of the earth so that your weight will be 300N

Science (physics)
The driver of a car travelling along a straight road with a speed of 72km/hour observe a signboard which give a speed limit to be 54 km/hour. The sign board is 70m ahead when the driver applies the break calculate the acceleration of the car which will cause the car to pass ...

Physical Science
Sodium (Na) reacts with chlorine gas (Cl2) to form sodium chloride (NaCl) as shown in the equation 2Na+Cl2=2nacl If 4 moles of sodium react, how many moles of chlorine gas will react? I have no idea what to do.......... I need some assistance thanks

science
no. of mole in 4.4 g Co2 is ……… .

Science: Physics
We use an electric immersion heater to heat 2,0 liters water having temperature of 20C to the boiling point. Specific heat capacity of water is 4,19 kJ/(kg c). The power of the heater is 1,50 kW and efficiency of heating is 80 %. How much time does the heating take?

Science: Physics
An electric heater of power 2500 W is connected to a voltage of 230 V. i) Calculate the electric current going through the heater. ii) What is the resistance of the heater? iii) How much energy does it consume in a year, if it is switched on 15 min every day. iv) How much it ...

Science Chemistry
Phosphorous (P) is an indispensable nutrient in food production. According to the estimates, mineral phosphorous resources will end up within 50 years and consequently new sources of P has to be found. A human excretes 2,2 g of phosphorous (P) per day on average. In ...

Science Chemistry
according to the reaction below: 4 NO + 3 O2 + 2 H2O → 4 HNO3 a) 0,001 g of NO dissolves into 1 liter of rainwater and all of it transforms into nitric acid. What is the molar concentration of nitric acid in the rainwater? b) Supposing that no other acids are dissolved in ...

Science Chemistry
The elementary analysis of 22 g hydrocarbon sample results in 18 g C and 4 g H. a) Choose the correct chemical formula of the hydrocarbon: i) CH4 ii) C2H4 iii) C3H8 b) What is the amount of CO2 in grams formed by the total combustion of hydrocarbon? Assume complete combustion...

Science
A driver of a moving car at 20m/s finds a child on the road 50m ahead and stops the car 10m earlier to the child. If the mass of the car with driver is 1000kg, calculate the force exerted by the brakes of the car??

Science
Our electricity bills consist of many different forms of energy use. In order to be able to make estimates on how much different appliances use electricity and how much savings could be done by investing less electricity consuming ones, you need to have understanding on ...

Science
b) Two families Mäkinen* and Nieminen* travel by cars a distance of 185 km. In the middle of the travel both have a break of 20 min. During driving family Nieminen has an average speed of 90 km/h. Family Mäkinen drives the first part at an average speed of 70 km/h. What ...

Science
Energy management has become a crucial field in increasing the efficiency of our everyday use of energy. One of the most energy consuming activities is the boiling of water. In order to understand the energy consumption, you need to have understanding on thermodynamics and ...

Science
Traffic in the cities releases NOx gases into the atmosphere (in the form of NO and NO2). NOx gases contribute to rainwater acidification by dissolving and transforming into a strong acid (HNO3, nitric acid) according to the reaction below: 4 NO + 3 O2 + 2 H2O → 4 HNO3 a) 0,...

Science
10. ALTERNATIVE B The elementary analysis of 22 g hydrocarbon sample results in 18 g C and 4 g H. a) Choose the correct chemical formula of the hydrocarbon: i) CH4 ii) C2H4 iii) C3H8 b) What is the amount of CO2 in grams formed by the total combustion of hydrocarbon? Assume ...

Science
Phosphorous (P) is an indispensable nutrient in food production. According to the estimates, mineral phosphorous resources will end up within 50 years and consequently new sources of P has to be found. A human excretes 2,2 g of phosphorous (P) per day on average. In ...

science
In me is me In me is a twin Which is said to flee When slumber comes in

science
A ray of light travelling in air strikes water by making angle 30 calculate angle of reflection if refractive index of glass is 1.5

Science
May someone please review my last to science parts and let me know what is right and wrong

Science
This is part two of my science I answered the other one just need to be checked on this one and the other one. 10. _________ is the most plentiful fossil fuel in the United States A:Natural Gas B:Coal C:Oil D:Petroleum 11. What is the result of fossil fuels being used more ...

Science
A+force+of+12+N+pulls+a+block+of+mass+3.​5kg+through+a+rope+of+mass+0.5kg.+The+bl​ock+is+resting+on+a+horizontal+frictionl​ess+surface.+what+is+the+force+of+reacti​on+exerted+by+the+block+on+the+rope

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

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

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?

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?

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?

science
Describe how the kinetic energy of the molecules affects an object's total thermal energy.

Computer Science
When is software described as open source

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.

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 ...

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.

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 ...

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?

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?

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 ...

science
If your rock sample has 10 grams, how many grams of quartz does it contain

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 ...

Maths science his french
Critical angle of a material to air is 30 degree then the refractive index of material will be

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.

science
what fabric is a good heat conductor? or what material other than metals are good heat conductors?

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.

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 ?

Science
How much you would weigh on the moon if you are 72 pounds on Earth

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.

science
How do scientists explain the fact that some landforms that are far apart and separated by oceans appear to be related?

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. ...

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

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.

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

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-...

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

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

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...

Science
What acceleration does a 40 slug object acquired when 500 lbs force act on it

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.

science
how high a cube of wood would float in water if it was 1/4 the density of that water.

5th grade Science
How does water tempurature give a clue about what ocean layer it belongs to? (Please help!)

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 ...

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 :)

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

science
Explain how a mutation in an individual's DNA occurs, and describe the effect it may have on the individual's traits.

Science
What Is lever.

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 ...

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) ...

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?

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?

science
Calculate the molarity of 500 ml of a solution containing 100 grams of glucose (C6H12O6).

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 ...

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...

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

Science
If you have 10 grams of water and you add 5 grams to it how much salt water do you have?

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Homework Help: Computers