Science

All new and solved questions in Science category

1 answer
When comparing the force that is required to climb a mountain walking up a trail that slopes gently upward to the top verses getting there by scaling a sheer vertical face, which of the following is true
when comparing the force that is required to climb a mountain walking up a trail that slopes gently upward to the top verses getting there by scaling a sheer vertical face, which of the following is true? (a) you use more force for a giving movement on the walk than on the climb, walking up the trai...
2 answers
What tells you whether a solution is basic or acidic
what tells you whether a solution is basic or acidic?...
1 answer
Explain the importance of convection currents to pond life
explain the importance of convection currents to pond life...
2 answers
A pig eats nuts,berries,fungi and insects
A pig eats nuts,berries,fungi and insects.What type of consumer is a pig A)producer B)consumer C)omnivore D)decomposer...
15 answers
Three statements that define all living things in terms of cells That's not even a complete sentence or question
Three statements that define all living things in terms of cellsThat's not even a complete sentence or question.I searched Google under the key words "living cells define" to get these possible sources: http://www.answers.com/topic/cell http://en.wikipedia.org/wiki/Life http://www.medter...
2 answers
When a car suddenly stops at a red light a book lying on the car seat slides forward why does the book continue to move forward
when a car suddenly stops at a red light a book lying on the car seat slides forward why does the book continue to move forward?...
2 answers
Which factor below helps species avoid extinction
3. Which factor below helps species avoid extinction? A. Low reproductive rates B. high economic importance C. limited habitats in which to live D. able to adapt to changes in their habitat I think its D. 4. If there continues to be a loss in biodiversity in plants and animals, which prediction woul...
no answer
When is the average velocity of an object equal to the instantaneous velocity
When is the average velocity of an object equal to the instantaneous velocity? a) always b)never c) only when velocity is constant d)only when velocity is increasing at a constant rate c) would be the answer since you could cross out a). I do know that instantaneous velocity is the speed at that sm...
5 answers
Why does an air bubble rise to the surface of a glass of water
why does an air bubble rise to the surface of a glass of water...
1 answer
Variable is the part of the experiment that is affected by the independent variable
The ? variable is the part of the experiment that is affected by the independent variable...
1 answer
An asteroid in an elliptical orbit about the sun travels at 2.0 106 m/s at perihelion (the point of closest approach) at a distance of 3.8 108 km from the sun
An asteroid in an elliptical orbit about the sun travels at 2.0 106 m/s at perihelion (the point of closest approach) at a distance of 3.8 108 km from the sun. How fast is it traveling at aphelion (the most distant point), which is 8.3 108 km from the sun?...
1 answer
Prove that the maximum horizontal range is 4 times the maximum height attained by a projectile which is fired long the required oblique direction
prove that the maximum horizontal range is 4 times the maximum height attained by a projectile which is fired long the required oblique direction...
1 answer
Describe how the hot water and the cold water moved when the divider was lifted
1.Describe how the hot water and the cold water moved when the divider was lifted. 2.Use your understanding of density to explain the motion of the water....
1 answer
What will be the final temperature if 1600 cal of heat is given to an ice block of mass 20 grams
What will be the final temperature if 1600 cal of heat is given to an ice block of mass 20 grams?...
no answer
How do the words matter, element, atom, crystal, compound, and molucle relate
how do the words matter, element, atom, crystal, compound, and molucle relate? Matter is composed of elements which are composed of atoms and molecules and these combine to form compounds that may be crystalline. why do leaves turn water a differnt color Leaves turn a diferent color because of th...
1 answer
A merry-go-round starts from rest and accelerates uniformly over 26.0 s to a final angular velocity of 5.50 rev/min
A merry-go-round starts from rest and accelerates uniformly over 26.0 s to a final angular velocity of 5.50 rev/min....
1 answer
The water and waste materials we washed down toilets and sinks are called: A
the water and waste materials we washed down toilets and sinks are called: A. pesticides B. sewage C. industrial chemicals D. fertilizer...
1 answer
Compare the three types of bonds based on what happens to the valence electrons of the atoms
compare the three types of bonds based on what happens to the valence electrons of the atoms...
1 answer
What is the element on the periodic table that is named after the sixth largest cantinent
What is the element on the periodic table that is named after the sixth largest cantinent?...
2 answers
Explain how scientists work together to forecast hurricanes
1.Explain how scientists work together to forecast hurricanes? 2.What damage can occur from a storm surge? 3. where does a tropical strom get its energy? 4. Which statment BEST describes a hurricane? A.Its wind are at least 119km per hour OR B. It forms within a thunderstrom...