Science

Recent Questions

Science
What type of crystals does magnetite have? What fracture does magnetite have?

science
A stones drops from the edge of the roof .it passes a window2.5m high in 0.1s.how far is the roof above the top of the window?

Science
How can you purify a water using only materials at home? How will you know if it is purified or not?

Science
Suppose a mutation occurs in the gene for a particular aminoacyl-tRNA synthetase. The mutation changes which amino acid is recognized, without affecting which tRNA molecule is recognized. How is this likely to affect protein synthesis?Find all that apply. It will change the ...

Science/ Math
A person watching the race noticed that at exactly 10:05 am a ant wandered onto the snails 94-cm mark, and reached the 50-cm mark at exactly 10:06 am. What was the velocity of the ant? Is the answer 44 cm? Because v= d/t

Science
is a jellyfish bilateral symmetry? I have no idea what bilateral symmetry is, so can someone link a website where it explains what it means?

Science Help Please
Giants and dwarfs are believed to be _________ stars. a) old b) young Please help!

Science
A person who has cystic fibrosis A.inherited two normal alleles from a parent B.inherited one mutated allele and one normal allele from each parent C.inherited two mutated alleles, one from each parent D.inherited two mutated alleles from a parent

Science
A drop of oil of volume 10^10m spread out on water to make a circular film of radius 10^1m. What is the thickness of the film

Science, need help please!!
Please help me with this science, thank you!! The sun is a mid-sized, main sequence star. What stage is next in the life cycle of the sun? A red giant B blackhole C white dwarf D neutron star ------------------------ Astronomers study many different kinds of objects in our ...

science
plants that have reproductive structures called cones are

Computer Science
If a file named "myfile" has -r--r--r-- permissions.  Write the command to change it to -rwxr-xr-- permissions using both the octal and symbolic modes of the appropriate command (octal mode was included in the instructor's lecture and published on this web site in the files ...

science
a carrier is a person who has

Science
Which tool would you use to measure how long it takes a toy car to go down a ramp?

Science - Physics
A student with a mass of 66kg is rollerblading at a velocity of 7.8m/s[W] when the trail suddenly becomes very rough and as a result the student stops pushing and comes to a stop in 0.95s. Determine the net force and acceleration of the student on the rough trail. Calculate ...

Science
12. How do the cherries on a cherry tree help the plant reproduce? A. Cherries develop into seeds, which are young, undeveloped plants. B. Animals eat the cherries, which helps disperse the plant’s seeds. C. Pollen inside the cherries fertilizes ovules, which produce seeds. ...

Science
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Science
1.Which item is made from a basic ingredient? soda** wine leafy vegetables toothpaste 2.Which substances will make a salt when combined? vinegar and soda soda and wine ** detergent and ammonia ferilizer and vinegar

computer science
Which of the following statements does not contain an error? 1. string firstName= in.next(); 2. string lastName= in.nextline(); 3. system.out.print("\n"); a. 1 only b. 2 only c. 3 only d. 1 and 3 only e. 2 and 3 only is the answer 1 and 3

science
Describe how you think the length of a pendulum affects the number of swings per minute (frequency). *

Science
what will my space instruments need to do? its basically asking me what instruments I need and what they need to do for space travel, help anyone ?

Science
How would you figure the number of protons or electrons in an atom?

Agriculture
1; What is advertising 2; 5 media mean s of advertising 3; roles of science and technology in advertising 4; 5 benefits of advertising.

Science
Two identical copper spheres are separated by 1 meter in vacuum . How many electrons would have to be removed from one sphere and added to other sphere so that they now attract each other with a force 0.9 Newton?

Science+Help
Please help I don't understand how to find my calculations and this is due today The length of a football field is 100 yards. When you compare geologic time (4.6 billion years) to the length of a football field, you will find that each yard on the field will equal 46 million ...

science
Why does Earth get more energy from the sun than from all the other stars in the universe combined? BTS ARMY

science
You are given the melting points of three unknown substances and are asked to predict which one is an ionic compound. You would select the compound with the ---------- meting point. My answer is highest

computer science
Which of the following statements does not contain an error? 1. string firstName= in.next(); 2. string lastName= in.nextline(); 3. system.out.print("\n"); a. 1 only b. 2 only c. 3 only d. 1 and 3 only e. 2 and 3 only is the answer 1 and 3

Computer science
Which of the following statements does not contain an error? 1. string firstName= in.next(); 2. string lastName= in.nextline(); 3. system.out.print("\n"); a. 1 only b. 2 only c. 3 only d. 1 and 3 only e. 2 and 3 only is the answer 1 and 3

Computer Science
Which of the following statements contains an error? 1. system.out.print("/tab Age in Minutes: " + ageInMinutes +"/n"); 2. system.out.print("t/ Age in Minutes: " + ageInMinutes + "n/"); 3. system.out.print("/t Age in Minutes: " + ageInMinutes + "/n"); a. 1 only b. 2 only c. 3 ...

Science
Each mineral group has a distinct chemical feature, such as A sulfides are a metal combined with sulfur and oxygen B oxides are a metal combined with oxygen C halides are a salt combined with a metallic atom D phosphates are made of phosphate polygons

SCIENCE HELP
How long is a fish DNA?

Science
Why does pressure change with elevation and depth

Computer Science
Please suggest corrections to this code: why isn't the loop continuing ANY help is appreciated! #include <iostream> #include <iomanip> using namespace std; int main () { double slope; int yint; int x; double cord; double coordinate(int x, double slope, int yint); ...

Science
why would a piece of wood float on water and sink in methylated spirit

Science
Economic importance of noctiluca

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

science
Which of the following statements describe acceleration? 1.) an object is speeding up 2.) an object is slowing down 3.) an object changing direction 4.) an object that is at rest -1 and 3 -1,2, and 3*** -all statements

science
Why are the oldest rocks on earth on continental crusts?

Science
What is the function of a cell wall? 1.to protect and sopport the cell****** 2.To perform different functions I’m each cell 3.To prevent water from passing through the cel 4.to prevent oxygen from entering the cell

Science
Which of the following distinguishes living things from nonliving things? A) Living things are made up of cells;nonliving things are not B) Living things are made up of atoms;nonliving things are not. C) Living things are made up of elements;nonliving things are not D) Living ...

Science (PLEASE ANSWER SOON)
Most bacteria are: A) Unicellular eukaryotes B) Unicellular proaryotes C) Multicellular eukaryotes D) Multicellular proaryotes

Science
2. Suppose that you swat at a bee, and it stings you. Jerking your hand away from the bee is a 1.motor neuron 2.reflex**** 3.stimulus 4.Voluntary motion

Science
If an animal is an ectotherm, it has 1.a skeleton on the outside of its body. 2.a skeleton on the inside of its body. 3.a body that regulates its own internal temperature.****** 4.a body that does not produce much internal heat.

Science
Which of the following is true regarding the organization of laminar structure in cortex? a)The output layers project only to cortical targets b)Only the input layers contain neurons c)The output layers project only to subcortical targets d) The thickness of input areas is ...

Science
A cytoarchitectonic map is a. a representation of the ways that cortical areas are connected to each other b. a map of regional differences in the laminar organization of cortex c. a map of the relation between the cortex and the thalamus d. a 19th century construct that was ...

Science
This is what the chart talks about. A Melt 1 cup of butter chop an onion mix ingredients in a large bowl B Brown the meat in a frying pan boil 6 eggs bake at 350 degrees kendra was looking at recipes in a cookbook. she divided some of the steps of a recipe into two columns. ...

Physical Science
You have a sealed glass jar full of air. If you put it in the freezer, what happens to the gas pressure in the jar??

Science
Scientific _____ involves knowledge and understanding necessary for evaluating information, making personal decisions, and taking part in public affairs. Please help!!

SCIENCE
Kirti kept a metal spoon in a glass jar filled with pickle for a few days. She observed there were holes in the spoon. What could be the reason?

science/chemistry
who understands heat release rate?

science
best way to figure peak of heat release rate

Science
Explain how sexual reproduction increases genetic diversity in many species of plants and animals, make sure to include the importance and function of gametes. PLEASE HELP!!

math.science
what is the heat release rate for a 30-m diameter gasoline pool fire?

earth science
which of the following is NOT a major component of soil a)mineral matter b)air c)humus d)earth worms 2) a soils texture is determined by a) mineral composition B)type of humans c)water content d)particle size 3)the main source of organic matter in soil is a)water b)plants*** c...

science
Lesson 10: Structures and Properties of Matter Unit Test anserws

6th Grade Science check please
Why can certain stars sometimes be identified as eclipsing binary stars? A-brighter than any single star B-are all white dwarfs C-become dimmer at regular intervals*** D-cool red stars I'm pretty sure I have the answers correct but would like someone to check so I'm sure. This...

Science
If given groups of cells, what are the characteristics that will allow us to identify prokaryotic cells from eukaryotic cells?

Science
Which physical properties are characteristic of normal solids? 1)brittle 2)little luster 3)malleable 4)ductile 5)good conductors of heat I think #1 and #2

Living Environment - Science
What are the disadvantages and advantages of individual cells cooperating and forming early multicellular organisms?

Earth Science
What would be the strongest gravitational force if an astronaut is between Earth and the Moon?

Science
How does the amount of substance affect the rate at which temperature changes? I will like someone to explain this to me, please.

science
Why do scientist us liters and milliters instead of gallons and ounces

science
What is food

science
the apparent magnitude of star is how bright they look to us we are on the earth looking up into space which would look brighter Small star Big star I think that is the big star thank you in advance

Science
How do conduction and convection differ? My answer was: Conduction requires objects to have direct physical contact, convection does not.

5th grade Science
How can two containers of water have the same temperature but different amounts of heat energy?

Vet Science
How many Pin bones does a goat have? I think 2

Science
A car of mass 800kg travels at 70km/h for 10 minutes. Find its kinetic energy

Science
Which physical properties are characteristic of metals? Choose all that apply. 1) brittle 2)high luster 3)malleable 4)ductile 5)not very reactive I think #s 2,3 and 4 Thanks

Science
Enzymes are important because they A)Contain Water B)Speed up chemical reactions C)Contain genetic material D)Help the cell maintain its shape

AP Environmental Science-Ecosystems
1. What are the physical products of cellular respiration? a. Oxygen and carbon dioxide b. Nitrogen and carbon c. Glucose and oxygen d. Glucose and water e. Water and carbon dioxide 2. If the biomass of flowers that support the butterflies was known to contain 100,000 units of...

Science
Explain the key factors that make an area a biodiversity hot spot. Include its abiotic and biotic factors

Science
In which part of the plant would you expect to find cells with the most chloroplasts? A.leaves*** B.roots C.xylem D.cambium

Science
Which part of the plant is responsible for absorbing water and nutrients? A.leaves B.stem C.roots*** D.xylem

Science
Difference between prokaryotes and eukaryotes

What books should I read
Hi, I'm in 11th grade, what fiction books would you recommend? Historical or science fiction books would be greatly appreciated.

SCIENCE
Which of the following is not true of a scientific theory? A. being able to make personal decisions about science related issues. B.being able to evaluate scientific information. C.being able to rely on opinions about science related issues. D.being able to take part in ...

social studies
After the Scientific Revolution, scientists no longer made their ideas about science fit? 1) the results of their experiments 2) the teachings of the church 3)their observations in nature 4)their political beliefs I think #2 Thanks

earth science
products that conserves resources portfolio

science
100,000 light years refers to... • the size of the spirals with or galaxy (Milky Way) • an approximate measure of the luminosity of the galaxy • an approximate measure of the distance across the galaxy****

science
Why does the Earth get more energy from the Sun compared to any other star? •The Sun is much closer to Earth. The next closest star is 4.2 light years away. **** • The Sun is much denser than other stars. That means it produces more energy. • The Sun is much hotter than ...

Science
Explain water potential and how it affects osmosis?

science
Bison, Zebra, and kangaroos have similar ecological niches but cannot be shown in the same food web, why? (doesn't mater where they live)

science
a body is moving with a initial velocity of 2m/s with constant acceleration of2m/s^2.another body starts from rest with constant acceleration of 6m/s^2.find how far from the second particles overtake the first

science
Find by drawing the resultant of two vectors 3 unit and 4 unit inclined to each other at 30 degree, 4 degree and 90 degrees.

english
Identify the correct sentence. a. Daniel’s science class starts at 7:30 am in the morning. b. Daniel’s science class starts at 7:30 a.m. c. Daniel’s Science class starts at 7:30 in the morning.

Science
Curliness of hair follows a codiminant inheritance pattern. Curly hair = C and straight hair = S. A curly hair person mates with a straight haired person. What is the probability of having an offspring with wavy hair? A)0/4 or 0% B)1/4 or 25% C)2/4 or 50% D)3/4 or 75% E)4/4 or...

Science
In goblins, the number of horns hows an incomplete dominace. No horns (N) are incompletely dominant to two horns (H). Two goblins with no horns mate, what is the probability that they will have an offspring with 1 horn? A)0/4 or 0% B)1/4 or 25% C)2/4 or 50% D)3/4 or 75% E)4/4 ...

Science
Curliness of hair follows a codiminant inheritance pattern. Curly hair = C and straight hair = S. A curly hair person mates with a straight haired person. What is the probability of having an offspring with wavy hair? A)0/4 or 0% B)1/4 or 25% C)2/4 or 50% D)3/4 or 75% E)4/4 or...

Computer Science
pseudocode for an application class named Monogram. Its main () method holds your first, middle, and last initials, respectively. Create a method to which you pass the three initials and that displays the initials twice, once in the order of first, middle and last, and a ...

Science
A body of mass 5 kg is moving with velocity 10m/s . Find its momentum

History
Which accurately describe ideological differences between Catholicism and humanism during the Renaissance? (Select all that apply.) catholicism promoted the individual as the center of existence, whereas humanism promoted god as the center of existence catholicism was the ...

History
During the Renaissance, the philosophy of humanism swept through Europe (1). Humanism resulted in advancements in art, science, and education (2). Humanist ideals also mimicked ancient Egyptian government structures (3). Humanists believed in the idea of a spiritual-king ...

science
the position of a particle moving along x-axis is given=5t^2-10t the distance travelled by particle is

Science
3.365*10^5 to 3

math / science
a bacteria population doubles every eight minutes. if the population begins with one cell how long will it take to grow to 512 cells?

science biology quick question
When applying the process of science, which is tested? A question B a result C an observation D a prediction E a hypothesis I know is D or E can you help me understand why D or E is the better choice?

Science
If you are in a spacecraft that has been launched into space your weight would do what

History
How did the Renaissance and humanism affect educational opportunities in Europe? (Select all that apply.) the publishing and distribution of books increased during the Renaissance, which made knowledge more widely available libraries sprang up in major population centers ...

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