Which statement is not true of simple machines? A.They can change the amount of work done on an object.
B.They can change the distance over which you apply a force.
C.They can change the direction in which you apply a force.
D.They can change the amount of force you exert.
this is science
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The correct answer is B. They can change the distance over which you apply a force.
Final answer:
The incorrect statement about simple machines is A. They can change the amount of work done on an object. Simple machines do not change the total amount of work; instead, they offer a mechanical advantage by changing the force and distance relationship.
Explanation:
The statement that is not true of simple machines is:
A. They can change the amount of work done on an object.
Simple machines are designed to make work easier by changing the force and distance relationship. However, they do not change the amount of work done on an object because the product of the force applied and the distance over which it is applied (work) remains constant, according to the law of conservation of energy. A simple machine can change the direction of the force, change the amount of force exerted, and change the distance over which the force is applied, which are the benefits of its mechanical advantage.
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Related Questions
1.Which of the following is a biotic factor? A.sunlight B.Worms C.water D.climate I think its B
Which of the following is an example of geographic isolation?A population of salmon dies out because they cannot find food. A zebra with a long mane moves into a population of zebras with short manes. A population of squirrels is separated by a mountain range and cannot interbreed. Two populations of rabbits are forced together after a flood. -- Which of the following statements is true? Extinction speeds up the evolution of other species. Earth has only experienced one mass extinction in its history. Speciation is caused by a reduction in gene flow. Genetic diversity can be increased by genetic drift. ---- Low genetic diversity _____. helps a population survive increases the risk of extinction can cause genetic drift is the result of genetic mutation ----- A species is endangered if it _____. no longer exists anywhere on earth is in danger of becoming extinct is not native the environment has high genetic diversity -- Which of the following statements is true? Gene flow evens out genetic differences between populations. Genetic drift increases the genetic differences between populations. Natural selection, mutation, and genetic drift are random events. The bottleneck effect increases the genetic diversity of a population.
What tool is used to determine the elements that are in a star
At what age is the difference between the average height of boys and girls greatest?Estimate this difference to the nearest centimeter.
b. thylakoids.
c. chloroplasts.
d. glucose
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Answer:
C
Explanation:
chloroplasts captures energy from the sun which is needed for the growth of a plant and it is also needed in the process of photosynthesis
Final answer:
Plants use pigments, primarily found in chloroplasts, to absorb the sun's energy. These pigments are housed within components of chloroplasts called thylakoids. The absorbed energy is used to produce glucose through the process of photosynthesis.
Explanation:
Plants gather the sun's energy with light-absorbing molecules called pigments.
Mainly, these pigments are found in organelles known as chloroplasts. Inside the chloroplasts, pigments like chlorophyll absorb light energy, and this is then used to produce a type of sugar called glucose in a process called photosynthesis.
So, the answer is option 'a' as pigments absorb the light from the sun.
Thylakoids are a component of the chloroplasts where the pigments are housed, and glucose is the end product of this process, not the light-absorbing molecule.
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o anion only
O Both cations and anions have negative charge.
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Answer:An ion (/ˈaɪɒn, -ən/)[1] is an atom or molecule that has a net electrical charge
Explanation:
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Well if the shadow was cast by something being directly in front of thesun at its surface (that's a pretty darn big "something") then it wouldprobably take about 1 hour for everyone to die. 8 minutes for us to seethe sun get blocked out and for the light to stop hitting the earth.Another 52 minutes for the entire atmosphere to cool... well freeze...then everyone would die. The temperatures would plummet fast enough tofreeze a layer of ice over all the oceans in a few hours. People couldsurvive this if they had warning, although there would be no habitableworld to come back to.
You need to understand that, without any sunlight, the earth wouldplummet to at least about -171º C. that's -279º F. What keeps us warm isthe fact that one side of the planet ALWAYS has sunlight. + we haveoceans and atmosphere to distribute heat. But if both sides of theearths atmosphere had to be subjected to those temperatures, it wouldsimply freeze the more and more of the atmosphere until it got to thelevel that you breath O2 at. The oceans would cool much too fast tosustain any heat distribution and the ice caps would grow faster andfaster and faster until the earth is frozen over.
My estimate is about 1 hour for ground level temperatures to hit a critical life threatening level
it will always e night
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Hope this helps :D
1) Move the decimal point to the left to where the number is between 1-10. This new number will then be multiplied by a power with 10 as the base.
The new number is 2.99792458, since it's between 1 and 10.
2) Count how many times the decimal point was shifted to the left. That will be the exponent for the 10.
The decimal point was moved 8 times to the left. That means the power is
3) Take the new number to 4 significant figures. All numbers other than 0 are considered significant figures, so we don't have to worry about the rules relating to 0! Take the first four numbers and round using the fifth.
2.99792458 > 2.9979
2.9979 rounds to 2.998
4) Multiply the number rounded to 4 significant figures, 2.998 (part 3) by the power,
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Answer:
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Answer:
The nitrogenous based in DNA are as follows; Adenine (A), Guanine (G), Cytosine (C) and Thymine (T).
Adenine pairs with Thymine (AT) and Cytosine pairs with Guanine (CG):
Here is my doggo also! Your Welcome!
Answer:
it can be grouped as purines adenine guanine pyrimidine cytosine and thymisine these nitrogeneois base are attached to C1' of deoxyribose through glycosibic bond