BIOLOGY HIGH SCHOOL

Two objects are 5 kg and 10 kg respectively, and they're 10 m apart. If the distance between them is increased to 20 m, what happens to the gravitational force?A. It decreases.B. It increases slightly.C. It is doubled.D. It doesn't change

Answers

Answer 1

Answer:

Answer: OptionA it decreases

Explanation :

The formula for gravitational force F is given by

F = G M1*M2/ $d^(2)$

where, G is the gravitational constant

M1 and M2 is the mass of the two bodies.

d is the distnce between the two bodies.

Now according to the question,

M1 = 5 kg

M2= 10 kg

d = 10

If we put these values in the formula we get,

F = 6.67 * $10^(-11)$ * 5 *10 / $10^(2)$

F = 3.335 * $10^(-11)$

Now, if the d= 20

then the answer comes out to be 0.83375* $10^(-11)$

Thus, we can see that the gravitational force decreases.

We can also find the answer without any calculation from the fact that in the formula the force is inversely proportional to square of distance, thus as the distance increases, the gravitational force decreases.

Answer 2

Answer: i think B. It increases slightly.

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What is a possible long-term consequence of groundwater overdraft?a. increased vegetation
b. unproductive wells
c. polluted groundwater
d. higher water tables

Answers

The correct answer is B. Unproductive wells.

The possible long-term consequences of groundwater overdraft is the unproductive wells.

Groundwater overdraft is known to occur when the ground water which is used exceeds the amount which is in the aquifer.

Groundwater results in reduced in supply of water reason being groundwater pumping costs, groundwater contamination, aquifer depletion or cost of well deepening.

Final answer:

The possible long-term consequence of groundwater overdraft is b. unproductive wells.

Explanation:

Groundwater overdraft occurs when the extraction of groundwater exceeds the rate of natural recharge, depleting underground aquifers. This unsustainable practice can lead to lowered water tables, land subsidence, saltwater intrusion, and ecological damage. It is a significant concern in areas where groundwater is a primary source of freshwater.

The possible long-term consequence of groundwater overdraft is unproductive wells. Groundwater overdraft occurs when the amount of water withdrawn from an aquifer exceeds the amount that is replenished over time. This can lead to a depletion of the aquifer and the drying up of wells that depend on it for water supply.

Learn more about groundwater overdraft here:

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What are some similarities between monohybrid crosses and dihybrid crosses?

Answers

one of the similarities between monohybrid crosses and dihybrid crosses is : both crosses show the probability of traits the offspring can have.Not only that, it helps finding out which alleles are resessive and which alleles are on the dominant type

Which statement best summarizes the water cycle?

Answers

Is there a list of statements you have to choose from?
If so, please tell us them. If not, you can summarize it by saying something like:

Water starts at a spring, heads to the sea then vaporizes and is pushed back to land where is condenses and rains, flows to the sea, and the cycle starts again.

Answer:

The water on earth changes forms as it moves from one reservoir to another.

Explanation:

The other two answer choices are

1: as water moves through an ecosystem, its energy is lost between trophic levels.

2:The water on earth changes forms as it moves from one reservoir to another.

and

3: Water in the atmosphere must be converted to another chemical before animals can use it

The correct answer of course would be answer choice 2. It does change forms as in states of matter from liquid to gas (water vapor) to solid (ice) and back again. This is the best summery of what the water cycle means.

1 is incorrect because it violates the law of conservation of energy. Water has nowhere to go so it stays on the surface of the earth.

And three is wrong because it simply does not describe the water cycle.

Which types of questions can most likely be answered through scientific investigation

Answers

Answer:

objective questions

Explanation:

explanation

Answer:Objective questions

Explanation:

You have two types of bread, three types of meat, and two types of cheese. How many different sandwiches can you make if each sandwich has one type of bread, one type of meat, and one type of cheese? 12 sandwiches
9 sandwiches
8 sandwiches
7 sandwiches
*This May seem very easy but i desperatley suck at math :(* ...?

Answers

Number of types of bread for making sandwich = 2
Number of types of meat for making sandwich = 3
Number of types of cheese for making sandwich = 2
Then
Number of different sandwiches that can be made = 2 * 3* 2
= 12 sandwiches

From the above deduction, it can be easily concluded that the correct option among all the options that are given in the question is the first option.

A nursing student learning about childbirth preparation in a maternity course correctly identifies which of the following to be a major determinant of the plans women make for childbirth?

Answers

Answer:

There are many determinants of plans women make for childbirth. The major is CULTURE

Explanation:

Many factors can determine a woman's plan for childbirth.

Culture stands out. Culture is the ideas, customs, and social behaviour of a particular people or society. Each woman is in a way connected to a particular culture.

Different societies or organization have childbirth practices. This ultimately has the greatest influence on the plans of women due to their deeply entrenched connection to their society. These childbirth practices ranges from fear of delivery, how to manage pain, what drugs to use, where to give birth, and which kind of delivery to choose.

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In looking at the location of Homeotic (Hox) genes Antp and Scr, it turns out that they are located next to each other. Why is it not surprising that the Antp gene and the Scr gene are located next to each other?

What is the purpose of the peptide bond that is shown in The diagram

This phylogenetic tree was constructed by comparing sequences for a homologous gene involved in development. Select the correct statement.a. Frog is the ancestor of both a mouse and a chicken. b. The common ancestor of a human and a frog and the common ancestor of a mouse and a chicken lived at the same time. c. The nucleotide sequence of this gene in a mouse is more similar to the sequence in a chicken, and both are less similar to the nucleotide sequence of this gene in a frog.

Is the following sentence true or false? The composition of the atmosphere changes every few kilometers as you move away from earth.