# Homework Help: Computers: Computer Science

## Recent Homework Questions About Computer Science

Science
Giant kelp has gas-filled sacs to help it float so it can do what

science
Molecular formula of silica is?

Science
The efficiency of a machine is 80%.calculate,the amount of energy needed by the machine to do work of 150joules.

science
What information does an equilibrium constant give about a reaction? A. It tells how long it takes the reaction to reach equilibrium. B. It tells how much energy is required for the reaction to happen. C. It tells what the rate constant of the reaction is at equilibrium. D. It...

science
Which rate constant would result in the fastest reaction? A. 1.3 × 103 L/mol · s B. 2.8 L/mol · s C. 9.5 × 10-2 L/mol · s D. 4.2 × 10-3 L/mol · s is the answer for this one c?

science
A graph of experimental data is a straight line when ln[H2] is plotted versus time. Which rate law fits the data? A. Rate = k(ln[H'small2']) B. Rate = k/[H'small2'] C. Rate = k[H'small'2] D. Rate = k[H'small'2]^2

science
If a reaction rate increases with temperature, how will the rate constant of the reaction change with temperature? A. The rate constant only changes upon addition of a catalyst to the reaction. B. The rate constant will decrease with temperature. C. The rate constant will not ...

Science
Suppose u walk across the room of length 9 m with the velocity of 1.5m perhr. Calculate the velocity in m/s and the time taken to move across the room

Ed Tech
What types of issues can you likely resolve by knowing how to access and use the Control Panel? Choose all that apply. network issues*** screen resolution and volume issues**** frozen application issues virus issues What can help prevent issues related to downloading content ...

Science
How many millilitres of water must be added to 30 mL of 10 M of HNO3, so that the solution concentration is reduced to 0.2 M?

Dallas
What types of issues can you likely resolve by knowing how to access and use the Control Panel? Choose all that apply. network issues*** screen resolution and volume issues**** frozen application issues virus issues What can help prevent issues related to downloading content ...

Science
A racecar driver steps on the gas, and his car travels 16 meters in 2 seconds, starting from rest. What is the average velocity in m/s and km/h?

SCIENCE
When a student added Zinc granules to dilute HCI, a colorless and odorless gas was evolved, which was tested with a burning match stick, it was observed that: (a) The match stick continued to burn brilliantly. (b) The match stick burnt slowly with a blue flame. (c) The match ...

science
a bkock placed on a rough inclined plane of length 4m just begins to slide down when the upper end of the plane is 1m high from the ground.calculate the coefficient of static friction.

science
what type of magma flows very fast

Science
A race car driver steps on the gas, and his car travels 16 meters in 2 seconds, starting from rest. What is the average velocity in m/s and in km/h?

science
While exploring a cave, a spelunker starts at the entrance and moves the following distances. She goes 75.0 m north, 250 m east, 109 m at an angle θ = 30.0° north of east, and 156 m south. Find the resultant displacement from the cave entrance. The figure below suggests ...

Science
Bart believes that mice exposed to microwaves will become extra strong (maybe he's reading too much Radioactive Man). He decides to perform this experiment by placing 10 mice in a microwave for 10 seconds. He composed these 10 mice to another 10 mice that had not been exposed...

science
1. Liquid phosphorus trichloride, PCl3 is made by the direct combination of phosphorus and chlorine. a. What is the maximum mass of PCl3 that can be produced from 125 g of P4 and 323 g Cl2? b. What mass of P4 remains after the reaction?

Computer
What are the first steps that you should take if you are unable to get onto the internet?

5. Steve's older brother got this cool new car. He said it can go from a stopped position to 80 miles per hour in ten seconds. His brother is describing the car's A. acceleration. *** B. average velocity. C. instantaneous speed. D. average speed. 6. Radar devices are used by ...

2. On my bike, I was able to travel 40 miles in one hour. From this information, we can determine the bike's A. speed. *** B. velocity. C. acceleration. D. direction. 3. The local news team is tracking the storm and has reported that it is traveling north, northwest at 20 ...

science
Does hydrogen undergoes reduction or oxidation on the basis of oxidation number in 2NH3 +H2SO4 which gives (NH4)SO4

science
The half-life of carbon-14 is 5730 years. If we start with 10 grams of carbon-14, after 5730 years, we will have _____ of carbon-14 left.

science
What is the oxidation number of Si in (CH3)2SiCl2

science
2. How many grams of 96.5% pure NaOH pellets do you need to make 1.000 liter of 1.50 N NaOH?

science
how to balance chemical equations with redox reaction Cr(OH)3 + IO3{-} + OH{-} = CrO4{-2} + I{-}

science
what is the action of chlorine gas on ethane

The senses are used to make which of the following? inferences predictions evaluations ((**observations**)) You walk into the kitchen and see a broken egg on the floor. Which of the following is an inference you can make based on this observation? ((**The egg rolled off the ...

Science
A transvers wave traveling on a rope is given by y=0.25 sin(0.3 radX-40radt), where y and X is expressed in meter and t is in seconds. Determine a-Amplitude. B-frequency C-Direction of motion. e-Displacement at X=0.6 m and t=2.3 s. Please help me

SCIENCE
A farmer believes that fertilizer runoff from a farm is killing the fish in a nearby pond. The farmer measures the amount of fertilizer in the pond each week and counts the number of dead fish. The measurements indicate that, as the fertilizer concentration increases, the ...

SCIENCE
1. WHICH OF THE FOLLOWING IS MOST LIKELY TO RESULT IN A SCIENTIST DRAWING WRONG CONCLUSIONS? A. CONDUCTING A DOUBLE-BLIND TEST B. CONDUCTING A CONTROLLED EXPERIMENT C. PREVENTING OPINIONS FROM AFFECTING DATA COLLECTION D. GATHERING DATA FOR A BRIEF PERIOD OF TIME D

Science
What is the function of the nucleus in a cell? A.The nucleus controls the cell’s activity.** B.The nucleus identifies a cell as belonging to a plant. C.The nucleus determines what substances enter and leave the cell. D.The nucleus can be seen under a transmission electron ...

Science
What safety rules should I follow before, during, and after a laboratory investigation?

Science
Which of the following is not part of the cell theory? A.Cells are the building blocks of life. B.All living things are made up of cells. C.All cells are created from other cells through cell division. D.The nucleus is the control center of the cell.***

science
an electron orbiting around hydrogen atom in circular orbit of radius 1armgstrom with the speed of 5*10^6 m/sec. Calculate magnetic field produced at the nucleus?

Science
Can air be pumped into the container completely filled filled with water?

science
Which rate constant would result in the fastest reaction? Which rate constant would result in the fastest reaction? 1 1.3 × 103 L/mol · s 2 2.8 L/mol · s 3 9.5 × 10-2 L/mol · s 4 4.2 × 10-3 L/mol · s

science
A graph of experimental data is a straight line when ln[H2] is plotted versus time. Which rate law fits the data? 1 Rate = k(ln[H2]) 2 Rate = k/[H2] 3 Rate = k[H2] 4 Rate = k[H2]2

science
The half-life of carbon-14 is 5730 years. If we start with 10 grams of carbon-14, after 5730 years, we will have _____ of carbon-14 left.

Science
Wht is acid,base,and salts.

Physical science
Two charged spheres P and Q have charges of+3C and -6C respectively.how far apart must the spheres be placed so that they exert an electrostatic force of 5 N on each other

Science Chemistry
Calculate the no. of grams of NaOH req. to absorb volume of the CO2 gas produce as Na2CO3

Science
A simple pendulum oscillates with an amplitude of 30 degrees. If the length of the string is 1.0m. Calculate the velocity of the pendulum bob at its lowest point.

science
Kinetic energy is the type of energy that is associated with: A. kinds of gases. B. electricity. C. motion. D. position.

science
What is the strongest intermolecular force that occurs between methane (CH4) and ammonia (NH3)? A. Dipole-dipole forces B. Hydrogen bond C. London dispersion forces D. Dipole-induced dipole attractions

science
A Geiger counter is used to measure the activity of a sample of iodine-131. Based on the data, what is the half-life of iodine-131? A. 16 days B. 8 days C. 4 days D. 12 days

science - chemistry
How can we separate a mixture of iodine, napthalene, chalk dust and saw dust. Write the ans in the form of a flow chart.

science
Which of the following terms are present in the rate law? A. The rate constant, the concentration of the reactants, and the order of the reactants B. The rate constant and the concentration of the reactants C. The rate constant and the temperature of the reactants D. The rate ...

SCIENCE
What are the differences between a hydrogen filled balloon and an air filled balloon flying or moving in air?

SCIENCE
Why does one feel difficult to breathe in a deep well while cleaning it?

science
How many atoms of carbon are needed to produce 0.45 mol Al? 3C + 2Al2O3 4Al + 3CO2 A. 2.6 × 1026 atoms B. 9.7 × 1024 atoms C. 3.0 × 1022 atoms D. 2.0 × 1023 atoms

Science
A helium tank has a volume of 8.0 L. It contains enough helium to fill 23 circular balloons with a radius of 15 cm at a temperature of 25.0 C (room temperature). Assume that the pressure inside the balloons is 2.0 atm. What volume would all the gas in the tank occupy at 2.0 ...

science
49. A researcher writes a grant proposal to repeat an experiment that was recently published by another researcher. Which of the following statements best supports the grant proposal? A. Funding this grant proposal will allow this laboratory to continue to study this topic. B...

Science
Design of a fourth order low pass filter with 150 Hz frequency for ecg acquisition

Science
What do you mean by resultant vector?

science
Fifty grams of ice at 0 degrees celcius is added to 200grams of water at 40 degrees celcius contained in a 100 grams copper calorimeter. If the final temperature of the mixture is 16 degrees celcius, find the heat of fusion of ice.

Physical Science
How many significant figures should the product 62.25 * 37.4 have ? a-2 b-3 c-4 d-7 my answer is c or 4

Science
Is Gelatin a suspension?

Science
You are exercising on a hot day. Your body temperature goes up. You begin to sweat. The sweat cools your body. Sweating is an example of: A. Input B. Process C. Output D. Feedback I'm not sure whether it is C or D...someone please help?

science
what is Newton first law

science
The boy A weighs 50 kg and the girl B weighs 35 kg in a seesaw...the board of the seesaw is 3.6 meter... To balance the seesaw where should girl C who weighs 25 kg seat or what particular distance should girl C seat to balance it

science
Calculate the % yeild of the reaction if 64 g of NaBH4 with iodine produces 15_g of BI3

science
Which of the following is an example of heterogeneous catalysis? A. Ethylene and hydrogen gases are adsorbed onto the surface of a metal catalyst to accelerate the formation of ethane. B. An enzyme catalyzes a biochemical reaction that produces the alcohol and CO2 gas in beer...

science
How would the fraction of successful collisions change with an increase in reaction temperature? A. The fraction of successful collisions would decrease. B. The fraction of successful collisions would remain unchanged. C. The fraction of successful collisions would increase. D...

science
What order is the radioactive decay of carbon-14, an unstable isotope of carbon? A. Third order B. Second order C. Zero order D. First order

Science work
A reaction is thought to be second order with respect to the concentration of carbon monoxide. What evidence would support this? Answer options... A. Changing the initial concentration would have no effect on the rate. B. Any change in the initial concentration would cause a ...

Science - Chemistry
If the rate law of a chemical reaction is k[NH4+]2[NO2–], what is the order of the reaction? 1. The order of the reaction cannot be determined. 2. 3 3. 1 4. 2

A gas has a volume of 4.25 m3 at a temperature of 95.0°C and a pressure of 1.05 atm. What temperature will the gas have at a pressure of 1.58 atm and a volume of 2.46 m3? A. 356°C B. 82.7°C C. 47.5°C D. 321°C

Science
Which of the following is not a postulate of the kinetic molecular theory? A. The collisions between gas molecules are elastic. B. The energy of a gas molecule is determined by quantum mechanics. C. Gas molecules travel in random, straight paths. D. The absolute temperature of...

COMPUTER
FUNCTION PROCEDURE TO INPUT A STRING AND CHECK WHETHER IT IS PALINDROME OUT NOT.

Science
A farmer wants to determine if a new fertilizer gives her a better crop yield than her old fertilizer. She spreads the old fertilizer in field A, which has a brand new irrigation system. She spreads the new fertilizer in field B, which has an irrigation system that will be ...

Science
how does an individual’s genetic makeup interact with nutrition, smoking

Math
A 20000 business computer depreciates at a rate of 15% per year. What is the following equations would model the value of the computer.. Y=20000 (.15) Y=20000 (.85) Y=20000 (1.15) Y=20000 +15x

Science
A student measures the volume of a liquid and finds it to be 40 mL. How many significant figures are in the measurement? A) 1*** B) 2 C) 3 D) 4 Is this correct? I'm not entirely sure if it's 1 or 2...

Science
25n . 8 seconds how much power ?

Science
A scientist studying the effects of gamma rays on marigolds gathered the data shown below. Hypothesis: Marigolds exposed to higher levels of radiation will not grow as well as marigolds that are exposed to less radiation Plant A: Gamma Rays (Rad/day) is 5. Water (mL/week) 50. ...

science
how many grams of nacl are required to completely neutralize of 1 M of h2so4

physics question
For a science fair competition, a group of high school students built a kicker -machine that can launch a golf ball from the origin with a velocity of 11.2m/s and initial angle of 31.5° with respect to the horizontal. a) Where will the golf ball fall back to the ground? b) ...

science
how to find no of g atoms and weight of an element ?

English II
1. Explain the difference between a mystery and a legend. 2. Create a list of at least five (5) of these proven and unproven beliefs about your chosen event. 3. Explain why each of the items in the list are proven or unproven. 1. A mystery is something that remains unexplained...

Science
Under the 1980 Low-Level Radioactive Waste Policy Act, each state must take responsibility for its non-defense related, low-level nuclear waste. If nuclear waste was NOT regulated and disposed of properly, which of these could be a possible effect? A) The risk of cancer in ...

Science
A car is braked so that it slows down with a uniform retardation from 15m/s to 7m/s while it travels a distance of 88m. If a car continues to slow down at the same rate, after what further distance will it be brought to rest?

Maths
In a class of 52 students 16 study science.1/3 of boys and 1/4 of girls. How many boys are in the class.

Science
what is the difference between mass and weight? The mass of an object is the amount of matter it contains, while its weight is a measurement of the force that gravity exerts on it. The mass of an object is always less than the weight of an object. The mass of an object is ...

maths
In a class 20 pupils like science, 13 pupils like history,8 pupils like both subjects and 9 pupilz do no not like either subject..use a Venn diagram to find how many pupils were in the class.....?? Help me

1.What is the difference between an observation and an inference? 2.what is a easy way to remember the difference between qualitative and quantitative data? 3.What is the difference a law and a theory? 4.Why is it important to remove bias from scientific research?

science
Force F=5N acts to the right. Draw a fully labelled scale drawing of the 5 N force using a scale of 10:1N.

Science
which of the following describes scientific inquiry? (1 point) a statement that describes what scientists expect to happen in an experiment facts, figures, and other evidence gathered through observation the diverse ways in which scientists study the natural world a well-...

Science
1.What is the difference between an observation and an inference? 2.what is a easy way to remember the difference between qualitative and quantitative data? 3.What is the difference a law and a theory? 4.Why is it important to remove bias from scientific research?

Science
An aeroplane flying in the air dips with a speed of 360 km per hr in a vertical circle of radius is 200m the weight of the pilot sitting in it 75kg calculate the force with which the pilot presses his seat and plane is at lowest point and plane is at highest point

science,John Dalton
what did john dalton do at 12 that he carried out through his life? what was his ides on schemicals react? which theory did he come up with?

Science
Bob created an experiment to test what plants need to survive. He believes plants only need water to live. In order to test his hypothesis, Bob planted two of the same types of plant. Only one received water and sunlight. While the other plant only received water. He measured ...

science
ten tonics with local produce that can help to reduce stress

Science
What science field is Vantablack considered to be part of?

science
list with match stick figures/pictures of some exercises to release stress.

Science
How the adhesion and cohesion properties of water are linked to photosynthesis😐

PHYSICS/SCIENCE
How much heat must be removed from 5.0g of water at 10°C to become ice at 0°C ? (my name is Kevin and I changed it to KPL cuz there is another kevin here)

science
What is absolute zero temperature?

PHYSICS/SCIENCE
How much heat must be removed from 5.0g of water at 10°C to become ice at 0°C ?

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