Science

Recent Questions

Science
"What amount of Barium hydroxide is needed to neutralize 500 kg of 18 molar Sulphuric acid?"

Computer Science / programming
Show the contents of each register and or memory location used after each instruction. MOV BH,33 BH=33 MOV [0500],BH BH=33, [0500]=33 MOV CL,66 CL=66 MOV [050],CL CL=66, [050]=66 MOV SI,0500 SI=0500 MOV BX,7643 BX=7643 ADD [SI],BX SI=0500, [0500]=76 ,[501]=DC INT 20

Computer Science/ programming
How long (how many bytes) is the machine code (object code)? 1855:0100 BE0002 MOV SI,0200 1855:1030 BF0003 MOV DI,0300 1855:0106 B98000 MOV CX,0080 1855:0109 BA04 MOV AL,[SI] 1855:010B 8805 MOV DI],AL 1855:010D 46 INC SI 1855:010E 46 INC SI 1855:010F 47 INC DI 1855:0110 49 DEC...

science
This year for my science fair project I will be testing to see if music affects a person's blood pressure. I will have a participant get relaxed (for 5 minutes). After he/she is relaxed, I will take his/her blood pressure with a digital sphygmomanometer (instrument used to ...

science
This year for my science fair project I will be testing to see if music affects a person's blood pressure. I will have a participant get relaxed (for 5 minutes). After he/she is relaxed, I will take his/her blood pressure with a digital sphygmomanometer (instrument used to ...

Science
demonstrate how the ear works

science
how many grams of CO2 (g) are there in 82.0ml of the gas at 0.916 atm and 30 degrees ceksius

science
I want to know whic n2 and co2 rms become same?

physical science
A gold bar has a mass of 250 grams and is heated from 25 degrees Celsius to 55 degrees Celsius. How much heat did the gold bar absorb? The specific heat of gold is 0.13J/g*degrees C.

science
magnesium oxide reacts with phosphoric, H3PO4 TO PRODUCE MAGNESIUM PHOSPHATE AND WATER. HOW MANY GRAMS OF MAGNESIUM OXIDE ARE REQUIRED TO REACT COMPLETELY WITH 33.5G OF PHOSPORIC ACID?

science
what is scorpius

Science
What is the term use to study the satellite television instruction experiment?

Science
What is chemic bonding?

Science Physics
A flat-bottom river barge is 30.0 ft wide, 85.0 ft long, and 15.0 ft deep. (a) How many ft3 of water will it displace while the top stays 3.00 ft above the water? (b) What load in tons will the barge contain under these conditions if the empty barge weighs 160 tons in dry dock?

venn diagram
venn diagram solving for 3 students likes geography physics science 75 likes only one subject 65 likes exactly two 15 like all three.1)how many students in a class 2)how many students like atleast one 3)how many students like only physics 4)how many students like only ...

6th grade science
we had this question on a test the measure of the amount of SPACE occupied by an object is its: weight mass area volume I put volume and it was marked wrong. The teacher said it was mass. I looked it up and still think I am correct, can you tell me which is correct? Thanks

science
Consider the compound cobalt (II) chloride hexahydrate (CoCl2·6H2O), how many waters of crystallization are present in this compound?

science
what is the parts of a lily flower?

Science asap!
Which of the following is not a process that forms metallic ore? placer deposits fossil compaction hydrothermal solutions igneous processes 5. Which of the following nonmetallic mineral resources is used both as a building material and as an industrial mineral? sulfur ...

SCIENCE
20. A horticulturist wants to plant that produces flowers with a certain size color and fragrance but is not aware of any one plant having all of these traits. The quickest way she could achieve her goal would be to apply the process of .

Science - Please Check Some Answers 1
Please help me with the following: A science class tested ways to clean water after an oil spill. Each group of students was given 100 mL of vegetable oil, 100 mL of engine oil, and 800 mL of water in a rectangular plastic container. Each container also held five floating ...

science
Over time,a plant pollinated by a hummingbird has developed very long, tube like flowers.Why might the flower have adapted in this way?

Science
What is the product of NaC2O4 and Ag+? A. NaC2O4 and Ag+ do not form a product. B. AgNaC2O4 C. Ag2C2O4****** I think the right answer is C...please let me know.

Science
What is the centripetal force on a vehicle rounding a circular curve with a radius of 80m at a constant speed of 90 km/h if the vehicles mass is 2,000 kg? (Hint: first express the velocity in meters per second) A: 20,250 N B: 703 N C: 625 N D: 15,625 N

Science
I was asked to give topic for science fair. Basically I want to have improvement in transportation. Please give me some ideas. Is there any area in transportation that is also having disadvantages means which area need to be improved so that it causes less problems to (...

science
3. One calorie is the energy required to raise one gram of water one degree Celsius. Since we use the joule as the standard measurement of energy, 1 calorie = 4.184 J. If a pot is placed on the stove with 2.4 liters of water at a temperature of 27°C, how many joules are ...

science
Fragment of Roman Gladiator leather harness. Radiocarbon date is 2100. What is the corrected age?

SCIENCE
The length of the platform is 1.5m and width is 0.750m,load acting on the platform is 150kg then what is the bottom support length and angle of it.

Science
What is the molarity (moles per liter) of a solution in which 80 grams of sodium hydroxide, NaOH, is dissolved in 1 liter of solution? How do I convert the 80grams into mols?

Science 1 easy question!!!!
Is a gazelle the closer to a camel or lioness on a cladogram? I think camel

Science
How is potential and kinetic energy measured?

Physical science
Think Critically. The mechanical advantage of a machine is less than one. Compare the distances over which the input and output forces are applied.

science
How do I do the following? Write the net ionic equation for the following molecular equation. 3 CoCl2(aq) + 2 Na3PO4(aq) Co3(PO4)2(s) + 6 NaCl(aq)

Science - Please Check My Written Answer
Please help me with the following: Briefly explain why experiments having faulty design or inconsistent data are problems for scientists. List several reasons. There are several reasons that experiments with faulty designs or with inconsistent data are problematic for ...

Science
Think about the factors that will influence the evolution of humans in the future. Name one factor that would exert influence through the process of natural selection and one factor that would exert influence through artificial selection. 1.natural selection: genetic ...

science
Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements about the solar system’...

science
the 6 term of a G.P is 2000 its common ratio is 10 find the first term?

Science
Did hippos evolve from whales or did whales evolve from hippos?

Science
When evolution was first proposed, which of the following was used as evidence to support the idea? 1.observations of nature 2.laboratory experiments 3.extensive fossil collections 4.genetic sequences I think its either 1 or 4

Science
Calculate the Volum ( In3 units) of a .740 lb object which has a densitiy of 1.326g/cm3 1 lb = 454 g 1 in = 2.54 cm

earth science
Which of the following statement is False: A.Cinder cones are built from ejected lava fragments and are usually less than 300 meters high B.Calderas are large collapsed depressions having more or less circular form C.Most volcanoes are fed magma through short conduits called ...

Science
An object travles 10 m in 0.07s what is its speed?

geography,maths literacy,life science,agriculture
What kinds of jobs for my subjects

Science
Where does a clone receive is DNA from? My guess is two parents

Science
How might genetically engineered crops help people in hash climates?

Science please help!!
To determine the atomic mass of an element, you would take a _________ average of the isotopes that make up that element

English
What do you have to do afer school? 1. I have to go to my academy and study hard until 11 p.m.. 2. I have to go to an academy to study math, English and science. 3. I have to go to the academy to study 5 subjects. 4. I have to wash clothes in the washing machine. 5. I have to ...

Science
According to the continental drift theory, which of the following land regions should show the greatest similarities in fossil types? (1 point) A) east coast of South America and west coast of Africa B) east coast of South and west coast of South America C) northern coast of ...

science
how did the discovery of the electron change the atomic model? A.it disproved the earlier idea of an indivisible atom. B. it confirmed that atoms are very tiny. C.it exposed fradulent experiments conducted by unqualified scientists. D. it proved that atoms are easier to see ...

computer science
I would like to create a class for finding the voltages of 1, 2 or even 4 batteries. The Class can be called BatteryVoltage with a default voltage value of 1.5 (AA Battery) Must allow the user to find the total voltage of batteries when installed as a single,double, or ...

Social Science
I am confused, what is the difference between basic tribunal and war crime tribunal. Thank You

Science 10
Need examples of food for Chemistry Reactions 1. Synthesis 2. Decomposition 3.Single Replacement 3. Double Replacement So for synthesis ( A + B --> AB ) I did, Macaroni + Cheese --> Mac n Cheese For Decomposition ( AB --> A + B ) I did, Dough --> Wheat + Water ...

Science 10
Here are the results of the 3 trials of dissolving equal masses of marble in hydrochloric acid listed from fastest to the slowest. List concentration, surface area, and temperature in decreasing order of their important in increasing the rate of this reaction. Trial 1 = Dilute...

science
on the moon where g=1.62m/s2 would the pendulum clock on the moon run faster or slower

science
12. Convert 11.1 liters to centiliters. A. 1,110 centiliters B. 11,100 centiliters C. 111 centiliters D. 111,000 centiliters 13. Which of the following tasks should be performed before measuring the mass of any object on a triple-beam balance? A. Make sure that the balance pan...

science
4. Convert to centimeters: 6.8 meters A. 6,800 centimeters B. 68 centimeters C. 68,000 centimeters D. 680 centimeters 5. What is the difference between a theory and an opinion? A. A theory is supported by scientific evidence, while an opinion is not. B. An opinion is supported...

science
1. Tommy performed an experiment to test the solubility of sodium chloride in water. After he completed his experiment, he discovered that he had a few unused grams of NaCl leftover in a beaker. What should he do with the excess NaCl? A. Pour the excess back into the original ...

Science
occurs when the moon passes between the sun and the earth, and the shadow of the moon falls on earth.

Physics Science
(a) Find the total force on the bottom of a cylindrical gasoline storage tank 15.0 m high with radius 23.0 m. (b) Find the total force on the side of the tank.

Science Physics
A pile driver falls a distance of 1.75 m before hitting a pile. Find its velocity as it hits the pile. So its 1.75x9.80=17.15?

science
1. Tommy performed an experiment to test the solubility of sodium chloride in water. After he completed his experiment, he discovered that he had a few unused grams of NaCl leftover in a beaker. What should he do with the excess NaCl? A. Pour the excess back into the original...

science
1. Tommy performed an experiment to test the solubility of sodium chloride in water. After he completed his experiment, he discovered that he had a few unused grams of NaCl leftover in a beaker. What should he do with the excess NaCl? A. Pour the excess back into the original ...

Physical Science
A 5.00 kg block of ice at –25 oC is converted to steam at 125 oC. How much energy (in kilojoules) is expended in this process? The following data are provided: a. Specific heat of ice = 2.092 J/g oC b. Latent heat of fusion = 334.72 J/g c. Specific heat of water = 4.184 J/g ...

science
which of the following is true about the magnetic field diagram below

Physical Science
Lead is a soft, dense metal with a specific heat of 0.117 J/goC, a melting point of 328.0 oC, and a heat of fusion of 23012 J/g. How much heat (in kilojoules) must be provided to melt a 350.0 kg sample of lead that is initially at 20 oC?

Physical Science
Jill walks 1 mile everyday for exercise, leaving her front porch at 9:00 A.M. and returning to her front porch at 9:25 A.M. What is the total displacement of Jill's walk?

science
'Imagine there is a tank of unknown gas that contains 53.31% carbon, 11.18% hydrogen, and 35.51% oxygen by mass. At 35.0 °C and 0.455 bar, 2.00 L of the gas has a mass of 3.20 g. Using this information, answer the following questions. a.) What is the empirical formula of the ...

Science 8A Electromagnetism
Hi, Umm, can someone give me an example because I'm kind of confused. I need help! Please help me! For this portfolio, you will design an experiment to investigate the relationship between the number of coil loops and a strength of a solenoid. Once you have an experimental ...

Physical Science
A hockey puck moving at 28 m/s is caught by an 80.00 kg man who was at rest. The man and the puck move together after the collision. The pucks mass is 0.16 kg. What is the final velocity?

science-gen chem
if 0.969 g of CaCl2 is mixed with 1.111 g of KlO3 how many grams of solid Ca(IO3)2 can theoretically be made? CaCl2(aq) + 2KlO3(aq) ===> 2Kcl(aq) + Ca(lO3)2 (s)

PLEASE HELP! SCIENCE
The system of blocks shown in the diagram below is being accelerated to the right at 4.4 m/s2 What is the applied force Small box mass- 0.10 kg Big box mass - 0.20 kg Acceleration - 4.4 m/s2 Coefficient kinetic - 0.35

Physics(Science)
Waves on a 5.0 m rope travel at a speed of 92 m/s. If the tension in the rope is 497 N, what is the mass of the rope?

science (Need FAST FEEDBACK!!!)
Is a density bottle the same as a pycnometer?

Science
I have a solid dissolved in water, both the same temp, and when it's put in the temperature drops. I have the heat capacity it of the solution, and need to the molar heat of the solution of the solid that was dissolved. Right now I've got: Mass of water x heat capacity x ...

Science HELP!
When diving into water, it is important to look before diving to avoid (blank)damage your nervous system. A. Deep water B. Underwater hazards C. living creatures D. Water toys Is the answer B? Thanks

Science HELP!
The part of the brain that controls movement and balance is the A. Cerbrum B. Cerebellum C. Brain stem D. Frontal lobe Is the answer B? Thanks

Science HELP!
The body's reaction to information is to send these to the brain. A. Neurons B. Impulses C. Dendrites D. Synapse Is the answer B? Thanks

science
what is the different between escape velocity & orbital velocity ???

science
How many grams of CaO must be added to 50.0 mL of water to make the temperature increase from 25.0 ¡ÆC to 48.81 ¡ÆC? The reaction is CaO(s) + H2O(l) ¡ê Ca(OH)2(aq) -- ¥ÄH = -83.7 kJ Assume the heat capacity of the solution is the same as pure water (4.184 J/g*¡ÆC), ...

science
Due to friction with the Earth's atmosphere, a large static electric charge could build up on our plummeting asteroid fragment. Would you expect our fragment to generate a magnetic field? Explain why or why not

Physical Science
Consider lead, in what state will it be at each of the following temperatures? a) 4000 degrees Celsius, b) 40 degrees Celsius, c) 400 degrees Celsius, d) 327 degrees Celsius.

science
How are Newton’s second and third laws of motion important to your everyday life?

science
a horticultural wants a plant that produces flowers with a certain size color and fragrance but it now aware of any one plant having all of these traits. the quickest way she could achieve her goal would be to apply the process of_____________

science
Can anyone help me out fill in the blanks. Here are the words that will complete the whole thing: -birth -body -control -development -eggs -endocrine glands -growth -hormones -milk -production -sperm uterus contractions The pituitary gland secretes______ which____ other____ ...

Science
Benzoic acid sodium hydroxide

science
a ladder is at rest with its upper end against a wall and the lower end on the ground .Is the ladder more likely to slip,when a man stands on it at the bottom or at the top?gove reason.

Science
A straight line with a positive slope on a velocity-time graph indicates which of the following? no movement constant acceleration toward the reference constant velocity away from the reference constant acceleration away from the reference

SCIENCE FOR 7TH GRADE
i need to conduct a scientific investigation and i need some ideas. Ex. " how does the amount of sunlight affect a plants growth" I need something like what is listed above. Thank you

science
is this an example of potential energy with household item? t.v

science
how do the instincts of migration and hibernation help animals to survive

science
what is kinetic energy and potential energy? Can u give me an example. thank you.

science!!
A couple has just learned that their daughter has hemophilia. They already have a son who does not have the disease. What are the genotypes of the couple? Explain your reasoning. ---------------- The gene for hemophilia is sex-linked, a recessive on the X-chromosome. The ...

Science
A cell starts with 12 chromosomes, then goes through mitosis. How many cells are produced at the end of mitosis? How many chromosomes are in each of the cells at the end of mitoses? A cell starts with 12 chromosomes, then goes through meiosis. How many cells are produced at ...

Int.science
An inverse relationship can be represented by: a straight line a bar chart

science
Ralph has the same mass of 72.6 kg, and his maximum velocity is still 7.3 m/s on the swing. What is the maximum height that Ralph reaches on his swing?

science
Ralph is also swinging at the park. He has a mass of 72.6 kg, and his maximum velocity at the lowest point in his swing is 7.3 m/s. What is Ralph’s maximum kinetic energy?

science
Ralph is also swinging at the park. He has a mass of 72.6 kg, and his maximum velocity at the lowest point in his swing is 7.3 m/s. What is Ralph’s maximum kinetic energy?

science
Which component of the technological system is achieved when an automobile airbag inflates?

Int.science
The rate at which a candle burns in millimeters per minute is: qualitative theoretical quantitative hypothetical

Int.science
The size of the chosen symbols on a graph may be used to indicate the: location of the data coordinates of the data uncertainty of the data relationship of the variables

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