A student wants to investigate the force of gravity. The student has an apple and a marble. What would be the best way for the student to use these materials? Place the apple on the floor. Roll the marble so it hits the apple. Put both objects on a desk. Push them forward at the same time. Hold both objects at the same height above the floor. Drop them at the same time. Place the marble on a desk. Place the apple next to the marble so the objects touch.
Answer:
Put both objects on a desk
Explanation:
The best way to use the materials to investigate the force of gravity would be to put both objects on a desk. The force of gravity can thus be obtained by measuring the distance between the objects as well as their masses.
According to Newton's law of universal gravitation, the force of gravity (F) between two objects is directly proportional to the product of their masses (m and M) and inversely proportional to the square of the distance (d) separating them.
Mathematically,
F = G [tex]\frac{mM}{d^2}[/tex] where G is a constant.
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How are plant and animal cells similar?
Answer:
Plant and animal cells are similar because both are eukaryotic. Every plant and animal cell has a cell membrane and cytoplasm. In addition, nearly all plant and animal cells have a nucleus.
Explanation:
I got it right
Match the following.
1. bacteria and fungi that break down dead matter
decomposers
2. the basic relationships that show how a community of plants, animals, and bacteria live and grow and how these living things are dependent on each other as well as the Sun, soil, and other nonliving parts of their environment; a cycle of relationships
ecosystem
3. line of plants and animals that shows the order in which organisms are eaten
food web
4. a diagram that shows the connections among food chains in an ecosystem
tertiary consumer
5. organisms that eat producers
primary consumer
6. organisms that eat primary consumers
food chain
7. predator that eats secondary consumers
secondary consumer
Answer:
1. bacteria and fungi that break down
Decomposers
2. the basic relationships that show how a community of plants, animals, and bacteria live and grow and how these living things are dependent on each other as well as the Sun, soil, and other nonliving parts of their environment; a cycle
Ecosystem
3. line of plants and animals that shows the order in which organisms are eaten of relationships
Food chain
4. a diagram that shows the connections among food chains in an ecosystem
Food web
5. organisms that eat producers
Primary consumers
6. organisms that eat primary consumers
Secondary consumers
7. predator that eats secondary consumers
Tertairy Consumers
Ivan reads a story about a population of mice that become stranded in a dark jungle. Some mice are dark brown, while others are white. According to the process of natural selection, predict which mice would be more successful living in a dark jungle. Explain natural selection and your prediction.
Answer:
The dark brown mice would be more successful in a dark jungle since the darker color of their fur would make it hard for predators to spot them.
The process of natural selection, predict which mice would be more successful living in a dark jungle is de dark brown.
What is natural selection?Natural selection is one of the main mechanisms of evolution. In a very simple way, we can say that natural selection is a process in which the fittest organisms are selected, survive in the environment, reproduce and pass their characteristics on to their descendants.
In this case, as it is a very dark forest, an animal with a white coat will attract more attention while an animal with a dark brown color will only be camouflaged in the environment.
See more about natural selection at brainly.com/question/9830102
I WILL GIVE BRAINLIEST IF U HELP ME AND I MEAN ACTUALLY HELP
Each year, the United States' federal costs exceed the anticipated national budget. In fact the last time that the United States government was able to end a fiscal year without accruing more debt was in 1960. This means that due to excessive spending and compounding interest accrued, the United States' national debt has escalated astronomically over the past several decades. The table shown below lists the recorded U.S. national debt amounts, written in standard form, for each decade, from 1960 to the year 2010.
Year U.S. national debt (in U.S. dollars)
1960 $286,330,760,848.37
1970 $370,918,706,949.93
1980 $907,701,000,000.00
1990 $3,233,313,451,777.25
2000 $5,674,178,209,886.86
2010 $13,561,623,030,891.79
For each decade, convert the U.S. national debt amount to a number in scientific notation, rounded to the nearest hundred millions dollars. Enter in numerical answers only.
Year U.S. national debt (in U.S. dollars)
written in standard form U.S. national debt (in U.S. dollars)
written in scientific notation
1960 $286,330,760,848.37 $2.863 ∙ 10
1970 $370,918,706,949.93 $3.709 ∙ 10
1980 $907,701,000,000.00 $9.077 ∙ 10
1990 $3,233,313,451,777.25 $3.2333 ∙ 10
2000 $5,674,178,209,886.86 $5.6742 ∙ 10
2010 $13,561,623,030,891.79 $1.35616 ∙ 10
Answer:
Given the US National Debt,
1960 $286,330,760,848.37
1970 $370,918,706,949.93
1980 $907,701,000,000.00
1990 $3,233,313,451,777.25
2000 $5,674,178,209,886.86
2010 $13,561,623,030,891.79
Then, rounding off these numbers to nearest hundred million,
1960 $286,000,000,000.00
1970 $370,900,000,000.00
1980 $907,700,000,000.00
1990 $3,233,300,000,000.00
2000 $5,674,200,000,000.00
2010 $13,561,600,000,000.00
While representing a number in scientific notation, it is written as a number between 1 and 10 and then multiplied by a power of 10.
The debt amount becomes,
1960 $2.86×10¹¹
1970 $3.709×10¹¹
1980 $9.077×10¹¹
1990 $3.2333×10¹²
2000 $5.6742×10¹²
2010 $1.35616×10¹³
Explanation:
Given the US National Debt,
1960 $286,330,760,848.37
1970 $370,918,706,949.93
1980 $907,701,000,000.00
1990 $3,233,313,451,777.25
2000 $5,674,178,209,886.86
2010 $13,561,623,030,891.79
Then, rounding off these numbers to nearest hundred million,
1960 $286,000,000,000.00
1970 $370,900,000,000.00
1980 $907,700,000,000.00
1990 $3,233,300,000,000.00
2000 $5,674,200,000,000.00
2010 $13,561,600,000,000.00
While representing a number in scientific notation, it is written as a number between 1 and 10 and then multiplied by a power of 10.
The debt amount becomes,
1960 $2.86×10¹¹
1970 $3.709×10¹¹
1980 $9.077×10¹¹
1990 $3.2333×10¹²
2000 $5.6742×10¹²
2010 $1.35616×10¹³
Explanation:
Which of the following statements correctly describes the relationship between energy and nutrients in an ecosystem?
a. Energy and nutrients flow
b. Energy and nutrients cycle
c. Energy flows and nutrients cycle
d. Energy cycles and nutrients flow
PLZZZZZZ I NEED HELP ASAP I ONLY GOT A LIL TIME PLZZ HELP :)
Answer:
B. The first generation will not have short plants. The short trait will return in the second generation.
Explanation:
If T is for Tall and t is for short, then the first generation doesn't have any short offspring. We can rule out answer choices A and D.
The second generation results in TT, Tt, Tt, tt.
TT is a tall Offspring.
Tt is a Tall Offspring, with a small t as a recessive trait.
tt is a short offspring because both the recessive traits (t) are together.
We can rule out option C.
That leaves us with the correct answer being B. The first generation will not have short offspring, but will pass it on to the second generation, which will have a short offspring (25% chance of having short offspring).
quick is de word...
taking yuh less than a min...
Answer:
renewable:
-wind
-forest
-water
-wildlife
-sun
non renewable
- coal
-soil
-natural gases
Explanation:
i googled it
hope this helps
brainliest?
The Gulf Stream is a surface current in the Atlantic Ocean that flows northward from the Caribbean Sea and the Gulf of Mexico. It feeds another current that reaches northern Europe. Which of these events would cause the greatest changes to the path and strength of the Gulf Stream?(please help)
A. a strong earthquake that occurs on the floor of the Atlantic Ocean
B. an increase in the volume of river water that flows into the Gulf of Mexico
C. a reversal of direction in the prevailing winds over the Atlantic Ocean
D. a slight increase in the salinity of the Atlantic Ocean
Answer:
It constitutes the northeastward extension of the Gulf Stream; the latter issues from the Gulf of Mexico and gradually emerges as the North Atlantic Current in mid-ocean. It is composed of several broad currents with speeds of about 0.2 knots, as compared with the Gulf Stream's rather concentrated flow at 1 to 6 knots.
Explanation:
Answer:
B. an increase in the volume of river water that flows into the Gulf of Mexico
What is the smallest unit ?
Answer: B) cell
the smallest unit of life is a cell
7. What is the water vapor concentration at the tropopause?
Answer:
99 %
The troposphere contains 99 % of the water vapor in the atmosphere. Water vapor concentrations vary with latitude. They are greatest above the tropics, where they may be as high as 3 %, and decrease toward the polar regions.
Explanation:
hope this helps <3
Give one word answer for the following. responsible for hereditary characteristics in living organisms.
Answer:
genes
Explanation:
Organisms inherit genetic material from their parents in the form of homologous chromosomes, containing a unique combination of DNA sequences that code for genes. The specific location of a DNA sequence within a chromosome is known as a locus.
Name two common causes of death other than tsunamis for people who experience major earthquakes.
Answer:
volcanos caused by the earthquakes, and, or dying from the earthquake itself
Explanation:
Using the law of conservation of mass, what is the mass, in grams, of the product in the given reaction?
Reactant 1 (35 grams)+ Reactant 2 (115 grams) →Product (? grams)
A. 80
B. 140
C. 150
D. 75
Answer:
The correct option is;
C. 150
Explanation:
By the law of conservation of mass we have that in a closed system, the mass of the items in the system can not be destroyed or created by a physical process or chemical reaction
In the given chemical reaction process we have;
Reactant 1 (35 grams) + Reactant 2 (115 grams) → Product = ((35 + 115) grams)
∴ Reactant 1 (35 grams) + Reactant 2 (115 grams) → Product (150 grams)
The mass of the product = 150 grams.
Why should we be concerned about the disappearance of phytoplankton in the oceans
Answer:
The loss of phytoplankton is a huge problem for marine food chains, says Worm, because every creature in the ocean either eats phytoplankton or eats other organisms that depend on it.
Hope this helps!
Help me please hurry???????????
Answer:
Compared to the use of many gasoline vehicles with only one person per vehicle, this method of transportation conserves more fossil fuels.
Explanation:
A form of transportation —such as the subway or streetcar— has capacity for many passengers and uses electricity as an energy source. This means fewer people using gasoline-vehicles, which leads to savings in fossil fuels, such as gasoline or diesel.
The decrease in the use of fossil fuels in vehicles has been proposed as an alternative to reduce environmental pollution and its consequences. One alternative is to consider mass transport vehicles that use alternative energy, a sustainable form of transport.
None of the other options are correct, as they involve more or the same use of fossil fuels per person.
Describe how water is important to plants in terms of:
i) making food in plants
ii) the plant's shape
iii) hydrolysis and dehydration
Answer:
i) In terms of food production in plants, water is essential to plants as it is the evaporation of water that occurs in leaves that allows carbon dioxide to enter and to begin photosynthesis.
(ii) In terms of the shape of the plant, water is important to plants as the hydration of the cells of a plant allows the cell walls to retain their shape and thus give structure to the plant.
(iii) In terms of hydrolysis and dehydration, water is essential for plants because water is not a photosynthesis reactant or respiratory product.
Explanation:
i) Water is important in terms of making food in plants:
Water is required for the germination of seeds and as soon as growth starts water serves as a carrier in the distribution of mineral nutrients and plant food.
ii) Water is important in terms of the plant's shape:
Responsible for turgor pressure in cells (Like air in an inflated balloon, water is responsible for the fullness and firmness of plant tissue. Turgor is needed to maintain cell shape and ensure cell growth.)
iii) Water is important in terms of hydrolysis and dehydration:
During the process of photosynthesis, six molecules of carbon dioxide and six molecules of water react in the presence of sunlight to form one glucose molecule and six molecules of oxygen.
The role of water is to release oxygen (O) from the water molecule into the atmosphere in the form of oxygen gas.
Learn more:
brainly.com/question/13027734
Which part of the DNA structure provides the genetic code for our traits?
Deoxyribose Sugar
Nitrogen Bases
Double Helix
Phosphate
Answer:
Phosphate
\\\\\\\\\\\\\\\\\
need help
6H2O + 6CO2
C6H12O6 + 602
Answer:
C6H12O6+6O2=6CO2+6H2O
Explain the purpose of cellular respiration .where does it take place ?
Answer:
Cellular respiration, it is an aerobic process in which glucose is combined with oxygen and Adenosine di-phosphate (ADP) to produce carbon dioxide, water, and Adenosine tri-phosphate (ATP).
Cellular respiration takes place in double membraned organelle called mitochondrion.
16. Name one organism that reproduces through binary fission
Answer:
Coral!
Explanation:
I learned this is a biology class a while ago!
Answer:
Bacteria
Explanation:
Is toxic chemical pollution a nonpoint source pollution or a point source pollution? I need an actual answer.
Answer:
Excess fertilizers, herbicides and insecticides from agricultural lands and residential areas. Oil, grease and toxic chemicals from urban runoff and energy production.
Explanation:
which two structures are not found in both animal and plant cells
Summarize the process of sexual reproduction and explain how variations of inherited traits can increase or decrease an organism’s chance of survival
Answer:
Explanation:
A Human cell has 46 chromosomes. (I’ll use humans to keep things simple). In sexual reproduction both humans have 23 chromosomes, in their sex cells. (Men have 23 in a sperm and women have 23 in an egg cell). These half cells merge to create 1 unique cell, that has characteristics of both male and female. The cells multiply and then a baby is born with a unique set of genes. These cause variations, and remember these variations can carry from generation to generation. As for how variations can increase a chance for survival, variations allow unique gene sets to be made, so that in case of a disease (in this case I’ll use a disease, but it could also include harsh environmental conditions), these unique gene sets may give an individual natural immunity to the disease. How can a variation decrease an organisms chance for survival? Well, s there are many ways that a unique gene set can make it difficult to survive. For example a genetic disease your family has had a history with. These diseases include, but are not limited to, cancer, diabetes, and schizophrenia.
HELP PLEASE BTW ITS NOT C I JUST PUT ANY ANSWER
Answer:
The answer would be D because it clearly states that the reactants are separated fron the products.
How are these genes related?
Which of the following is a result of too many greenhouse gases in the atmosphere?
A: Glaciers melting
B: Sea levels rising
C: Cloud forests drying
Answer:
glaciers melting
Explanation:
thats what i would say
The Somatic Nervous System controls all our voluntary muscle movements.
Group of answer choices
True
False
Answer:
it is true true
Explanation:
Answer:
its true
Explanation:
which best explains the mechanism that allows for cell differentiation ?
Answer:
Cellular differentiation
Explanation:
What are the reactants and products of the light independent reactions?
Answer:
In photosynthesis, oxygen, carbon dioxide, ATP, and NADPH are reactants. GA3P and water are products. In photosynthesis, chlorophyll, water, and carbon dioxide are reactants.
The reactants and products of the light-dependent reactions of photosynthesis would be as follows:
Reactant: water, radiant energy, ADP, and NADP+
Products: oxygen gas, ATP, and NADPH
In the light reaction, radiant energy excites the electrons of chlorophyll molecules. The excitation causes the electrons to be knocked off the chlorophyll molecule and the energy of the electrons is used to convert ADP to ATP and NADP+ to NADPH.
The space left by the excited electrons is filled by electrons from water molecules with oxygen from the water molecule being released as a result.
More on the light reaction of photosynthesis can be found here: https://brainly.com/question/16710103