Science

Recent Questions

Science
Hey I need help with my science paper I have to write a page or two on birth defects but I don't know any birth defects.

Science
A cat is walking down a sidewalk and spots a dog in a nearby yard. The cat starts to run in the opposit direction and then quickly climbs a tree. Which of the following changes most accurately describes the movement of the cat? A. Change in speed B. Cange in distance C. Change...

Science
1.A model train traveling at a constant speed around a circular trak has a constant velocity. True False**** 2.Which of the following would be affected if a soaring eagle changes direction but remained at a constant speed? A. Acceleration only B. Velocity only**** C. ...

science
One way the modern atomic model differs from Thomson’s atomic model is that electrons are no longer scattered throughout an atom’s positive matter like chocolate chips in cookie dough. Instead, each electron is outside of the nucleus occupying a specific... If new info ...

Science
I am really having a hard time completing this question.. Punctuated equilibrium occurs over a relatively ______ period of time, usually as a result of a ________.

physica science
when will the resultant of the two vectors be at maximum when two forces of 5n and 7n act on an object?

Science
Why are phosphates rocks useful?

Science
how is radiation different from convection and conduction? Radiation can travel through solids is what i'm thinking.

science
What is Eugenics and what were the goals and policies of the American Eugenics movement?

science
In the past, what makes someone or a group of people considered to be "unfit" members of society?

Science
Describe genetic engineering on a cellular level. In other words, what exactly takes place during genetic engineering that inserts a trait into an organism that did not have that trait before? Give an example

Science
In the past, what makes someone or a group of people considered to be "unfit" members of society?

science
which statement is true about the following molecule

science
homozygous line of normal-hearing dogs was crossed with a homozygous line of deaf dogs. F1 and F2 generations were produced. What percent of F1 generation is expected to have normal hearing? What is a phenoeyeic ratio of the F2 generation?

Science
a common recessive trait in dogs is deafness. homozygous line of normal-hearing dogs was crossed with a homozygous line of deaf dogs. F1 and F2 generations were produced. What % of F1 generation is expected to have normal hearing? What is a phenoeyeic ratio of the F2 generation?

Math
It takes Jaiden 5 and 3/4 hours to do her homework each week. It takes her 2 and 3/4 hours to complete her science and 1 and 1/2 hours to complete her math homework. How long does it take her to complete Social Studies homework? Use the numbers and symbols, listed below, to ...

science
Which systems move the human body? I heard there were the skeletal, nervous, and muscular system. ??

Science
If I push a book 1.5 m across the table using a constant for of 10 N, how much work do I do on the book?

Science
2. Which of the following reference points would allow you to observe the speed of a car that you are traveling in? A. An airplane flying acroos the sky. B. A car traveling next to you at the same speed you are traveling. C. A car traveling next to you at a faster speed than ...

science
Can you explain to me what happens to the energy when you do work? thanks

Science
Kilometers per hour describes the speed of an object. True False Is the answer True? Thank you

science
Which product we will get on reduction of ethanol?

science
the area drained by a river and its tributaries is called its

science
Which cells do the authors identify as the ones most likely to hold the key to increased human longevity and vitality and how might this work? Describe one alternative to cloning that the authors mention.

Science
If a certain spring stretches 9.76811 cm when a load of 17.9936 N is suspended from it, how much will the spring stretch if it is cut in half and 65.8458 N is suspended from it? Answer in units of cm.

Science
Describe genetic engineering on a cellular level. In other words, what exactly takes place during genetic engineering that inserts a trait into an organism that did not have that trait before? Give an example.

science
A 5-kg cat accelerates at a rate of 2 m/s. What is the net force acting on the cat? a. 10 N b. 7 N c. 3 N d. 2.5 N

Science
Star athletes like Peyton Manning can travel to Europe to receive stem cell treatment that is not available in the US. What should be our general guidelines about this and other type’s experimental treatments?

science
i need help with more questions in the packet heres my question the poisonous gas hydrogen sulfide, H2S, can be neutralized with a base such as sodium hydroxide, NaOH. THE unbalanced equation for this reaction follows: NaOH(aq)+H2S(g)→Na2S(aq)+H2O(l) a student who was ...

Science
Explain the motion of a baseball and the forces acting upon it as it leaves the pitcher’s hand and travels toward the batter at home plate. Identify the term applied to this type of motion.

science
i need help with a packet that im struggling with my questions are write the total number of atoms present for the following questions: a. 4SO2 now i tried and got 8O'S and 1S b. 8O2 i tried and got 16 all together c. 3Al2(SO4)3 i tried and got 6Al, 3S, and 12O my next ...

Science please help thx
Convection cells are created by very hot material deep in the mantle rising, then cooling, sinking again and repeating the cycle. This process occurs because of the uneven distribution of ? Within the earth? Please fill in the question mark with a answer. a. Crystal plates B. ...

Science please help
Some of the water flows over the dam and is converted to energy, some water evaporates into the air. What spheres does the water, or hydrosphere interact with this example? a. Geosphere and atmosphere B. Atmosphere and biosphere C. Crysophere and atmosphere D. Asthenosphere ...

Currently doing Math,life science,geography and ph
I am thinking of changing physical science and do business with math,life science,business and geography what career can i pursue?

Science
What is the main method of heat transfer from the core to the crust of earth? A. Conduction B. Convection C. Radiation

science
name four phylum under the five kingdoms

Science
True or False: Tides are caused by the force of inertia from the sun and moon acting on earth.

Science
What features of Western culture help lead people to believe in their primacy over nature?

Currently doing Math,life science,geography and ph
I am thinking of changing physical science and do business with math,life science,business and geography what career can i pursue?

science 1 question
When evolution was first proposed, which of the following was used as evidence to support the idea? A)observations of nature B)laboratory experiments C)extensive fossil collections D)genetic sequences Is it A or C??? I'm very torn between the two. pls help asap! i might post ...

Science And Technology Engineering Mathematics
Do you know some site where can I look for Science And Technology Engineering Mathematics books?

science 1 question
In a cladogram, a branch point represents a(n) _______ and a branch that ends without leading to a living species represents _______? a. common ancestor; extinction b. mutation; punctuated equilibrium c. extinct species; common ancestor d. common ancestor; speciation I think ...

science
ways to help farmers increase agricultural productivity

science
if .38 kJ of heat is added to 19.6 grams of ice at -12.0 degrees celsius, what will be the final temperature?

Maths lit,History,Life Science and B.S.
What career should I take with these subjects. Maths Lit, Business Studies , Life Science and History?

political science
Do you think Indian middle class has strengthened or undermined democracy process in India?justify?

science
A quantity of steam (750 g) at 122°C is condensed, and the resulting water is frozen into ice at 0°C. How much heat was removed?

Science
3.What are the advantages of your design over using fossil fuels (I JUST WANNA KNOW WHAT DOES THE QUESTION MEAN LIKE BREAK IT DOWN FOR ME YOU DON'T HAVE TO DO IT THANK YOU)

science
1 which of earths spheres contains most of its mass? A atmosphere B hydrosphere C geosphere* D biosphere 2 erosion and weathering are examples of which types of forces? A constructive forces B destructive forces* C gravitational forces D inertia-related forces 3 which of the ...

Science - Please answer as soon as possible
Which of the following systems is not directly involved in the body's regulation of water. a. digestive b. muscular c. urinary d. integumentary

science
Which of the following is true? ( a ) when plant is kept in sunlight ,photosynthesis and cellular respiration occurs. ( b ) when plant is kept in sunlight ,only photosynthesis occurs (c ) when plant is kept in dark place ,photosynthesis &cellular respiration don't occur

science
Is there any stars between the Earth and the Moon?

science
Which among the following is obtained by reduction of ethanol (a) ethanol (b) co2& O2 (c) methanol (d) all

science
An inverted image of a candle is formed when kept in front of a convex mirror .If half lens is covered by an op equestrian material than how will the image be?

science
Does the temperature of the water affect the reaction of a lava lamp? Does the size of the bottle affect how many blobs are produced of a lava lamp? Does the effect still work if the cap is put on the bottle of a lava lamp? Does the size of the tablet pieces affect the number ...

Science
Is this equation balanced or unbalanced? H3PO4 and H4P2O7+H2) The first equation has 3 Hydrogen, 1 Phosphorus, and 4 Oxygen. HOw do you find the second equations Oxygen?

SCIENCE
CH4+O2>CO2+H2O

General Chemistry Project Ideas?
Hi I'm a high school science teacher and I teach General Chemistry when we learn how chemistry relates to our everyday lives. Right now were learning about some common compounds. I need projects ideas regarding some common compounds relating to their everyday lives.

science
which one of these are not used to power generators? A- wind B- moving water C- hot rocks under earth's surface D- static electricity

science
Question 1 of 20 5.0 Points Which statement is correct? A. Both protists and fungi are eukaryotic. B. Both animals and fungi lack cell walls. C. Both plants and fungi undergo photosynthesis. D. Like some prokaryotes, fungi are autotrophic. any help??

Useless Science Question
a bicyclist is in a 50-km race. She says she had an average velocity of 35. What is missing in the cyclist's velocity?

science
what is the Half-life of strontium 90. Explain your work. Okay well I already know the answer is 28yrs but I just don't know how to explain it on how I got the answer... can you guys help me please! I need this done in 30 seconds..

Science help please
Use the word bank below to answer the questions that follow: conservation carbon footprint decompose slower renewable biodegradable desertification fossil fuels aquaculture hydroelectric geothermal ozone land reclamation point decompose faster nuclear photochemical ...

science
1. The Cenozoic Era is also referred to as the? A. Age of Mammals. B. Age of Fish. C. Age of Dinosaurs. D. First Era. 2. When new clay sediment is deposited on top of old beach material, it's known as? A. Transgression. B. Regression. C. Progression. D. Aggression. 3. Small ...

science
home / homework help / questions and answers / science / physics / the temperature of an ideal gas at an initial pressure ... Question The temperature of an ideal gas at an initial pressure P1 and volume V1 is increased at constant volume until the pressure is doubled. The ...

science
Daniel is riding the giant drop at great america if Daniel free falls for 2.6 seconds?

Science
To lift an object weighing 21,000 N, how much force is needed on a piston with an area of 0.060 m2 if the platform being lifted has an area of 3.0 m2 ? If the weight is 21,000 N which is also a force and to find Buoyancy force then 3.0 m2 + .06 m2 = 3.6 m2 21,000/3.6 Im pretty...

Physical Science
An 80.00 kg man playing hockey catches a puck moving at 20 m/s. The man is initially at rest. The man and puck move together after the collision. The puck's mass is 0.16 kg. What is the final velocity? A. 13.6 m/s B. 0.04 m/s C. 1.36 m/s D. 4.0 m/s

Science
H2SO4. It's asking for the number of atoms and the total atoms. Do I just put 7 atoms for both questions?

Science
H2SO4. It's asking for the number of atoms and the total atoms. Do I just put 7 atoms for both questions?

Science
1. Name the components of the respiratory system in the order incoming air would encounter them during breathing. trachea, pharynx, larynx, alveoli, bronchi bronchi, larynx, alveoli, trachea, pharynx larynx, trachea, bronchi, pharynx, alveoli pharynx, larynx, trachea, bronchi...

Science
When Marie Curie Isolated uranium from pitchable, she realized that the [itchable was more radioactive than the uranium she had extracted. What did she conclude about her observations? pitchblende itself is a radioactive element the pitchblende sample contained an unknown ...

Science
What was Henri Becquerel studying when he accidentally discovered radioactivity? Photography Properties of black light Properties of X-rays *** Solar energy

Science
IF the medium is changed, THEN the refraction of light will increase*** decrease

Science
How does a change in medium affect light?

Physical Science HELP
What and how do I balance this if it needs to be done? Help please Balance the equation, if necessary, for the reaction between zinc and iodine. Zn + I2 „_ 2ZnI2

Physical science
a mass of 10g of sodium nitrate is dissolved in 10ml of water at 80 degrees celsius, at what temperature will it start to precipitate?

science
Does the temperature of the water affect the reaction of a lava lamp? Does the size of the bottle affect how many blobs are produced of a lava lamp? Does the effect still work if the cap is put on the bottle of a lava lamp? Does the size of the tablet pieces affect the number ...

Science
I'm kinda in a rush but take your time!Thx! 1.What was Henri Becquerel studying when he accidentally discovered radioactivity? A.photography B.properties of black light C.properties of X-rays D.solar energy 2.When Marie Curie isolated uranium from pitchblende, she realized ...

Science
How would a scientist determine the absolute age of a fossil?

science
describe a process that could cause an uncomformity

Science
Find the amount Atoms and the total amount of elements for each formula C4H10 2 elements 14 atoms H4Mg3Si2O9 4 elements 18 atoms C6H7O2(OH)3 3 elements 18 atoms Pb(NO3)2 3 elements 9 atoms

Science
Find the amount Atoms and the total amount of elements for each formula HCl 2 elements and 2 atoms H2SO4 3 elements 7 atoms KI 2 elements 2 atoms H2O 2 elements 3 atoms

Science
A mass extinction is a catastrophic event because _______?

Science
How to find how many atoms are in a formula such as H20

science
3 examples of objects of high kinetic and 3 examples of low kinetic

Science/earth
How does money and politics affect the public claims about global warming? Pick on news source (news company, think tank, or university) and investigate its credibility.

science
a solution is made by dissolving 25 g NaCl in enough water to make 1.0 L solution. Assume that density of the solution is 1.0 g/mL. calculate the mass percent, molarity, molality, and mole fraction of NaCl.

science
a solution is made by dissolving 25 g NaCl in enough water to make 1.0 L solution. Assume that density of the solution is 1.0 g/mL. calculate the mass percent, molarity, molality, and mole fraction of NaCl.

science
Jan calculations of the talantola found that the spider able to cover 20 cm. in 5 seconds.What was the speed of the spider?

science
if castr raises his chevy down highway 37 for 2,560 m. in 60 seconds. what is his speed

computer science check
Which of the following examples correctly describes the order in which these parts of a program should be written? (Select the best answer.) A- The import command, then function definitions, then function calls B- Function definitions, then the import command, then function ...

Science
Would there be as much variety to living things if meiosis did not occur?

science
What is an experiment I could do that investigates the effect of different forces on an objects motion? I need some suggestions please!

Science/ Evolution
According to the authors, (Hewlett, Martinez & Peters, Ted), why should the Christian commitment to truth lead Christians to support Darwinian and neo-Darwinian scientific research?

Science
Please explain what the authors, (Hewlett, Martinez & Peters, Ted), mean when they write that the neo-Darwinian model is very fertile? Please explain one of their three examples of this fertility.

Science
Please explain what the authors, Hewlett, Martinez & Peters, Ted, mean when they write that the neo-Darwinian model is very fertile? Please explain one of their three examples of this fertility.

Science
According to the authors, Hewlett, Martinez & Peters, Ted, why should the Christian commitment to truth lead Christians to support Darwinian and neo-Darwinian scientific research?

Science
What is an example of population. A. all the animals in a forest B. All the trees in a forest C. All the maple trees in a forest D. all the weeds in a forest Please help!!!

science
Calculate the moment of inertia of a uniform disc of mass 200g and radius 5cm about an axis passing through its edge and perpendicular to its plane?

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