A student tries to push a refrigerator-sized box of textbooks safely across the classroom.

The box does not move. He asks for help from other students.

The box starts to move when the number of students shown in the image is pushing together.



Based on this information, what conclusion can be drawn?




The box has a mass greater than the combined mass of the first two students pushing.


The forces acting on the box became unbalanced when the third student started pushing.


The only force acting on the box is the push applied by the students.


When the third student started to push, the box’s mass decreased

Answers

Answer 1

Answer:

The forces acting on the box became unbalanced when the third student started pushing.

Explanation:

The horizontal forces, friction and applied, were balanced until more force was applied than friction. Mass can't increase or decrease.

Answer 2

Answer:

The forces acting on the box became unbalanced when the third student started pushing.

Explanation:


Related Questions

please help me. i will give brainliest

Answers

Answer:

star 2 does

the rest are either missing the grouped spectrum after 6k or the dark solid spectrum at 4500ish

Explanation:

respiration is a ____________ reaction on which sugar is oxidized to produce energy ​

Answers

Answer:

chemical

Explanation:

Respiration is a redox reaction on which sugar is oxidized to produce energy .

What is respiration?

Cellular respiration is a sequence of chemical events that break down glucose to produce ATP, which can then be utilized as energy to power a variety of reactions throughout the body. Glycolysis, the citric acid cycle, and oxidative phosphorylation are the three basic processes that take place during cellular respiration.

Animals and humans use breathing to get the oxygen they need for cellular respiration. In order to create ATP, the nutrients you absorb through food must be broken down by the oxygen you breathe, while carbon dioxide and  water are generated as waste products.

Learn more about cellular respiration, here:

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which best represents a heterogeneous mixture

Answers

Answer:

cement and water represent the best heterogenous mixture

Hello My name Is Chloe, Do you think you can help me with My Question
I need Facts on sharks.
I'm doing a report for school.
Thanks:)

Answers

Answers:

Here are some fact about sharks that i found cool

#1

Possibly one of the most evolved sharks today are hammerhead sharks. They have an advanced sensory system and a body shape that has adapted to hunt specific prey

#2

Sharks may be one of the most important species on Earth. They have been maintaining our oceans for over 400 millions years.

#3

Sharks have evolved and changed much over millions of years. However many sharks today still share some of the features as sharks from millions of years ago.

#4

Sharks have been in our oceans for over 400 million years. Some of the earliest sharks were discovered dating back to the Devonian age.

#5

Sharks have survived five massive planet extinction events. These extinction events killed most life on earth and the last one around 65 million yeas ago killed the dinosaurs.

#6

There are over 500 species of shark.

#7

It is believed that each whale shark's pattern is unique, like a human's fingerprint.

#8

Sharks do not have bones. Instead, they have cartilage, that's what makes up human noses and ears

#9

According to the Smit.hsonian, there are over 500 known shark species, though many are endangered or declining due to various factors like overfishing.

#10

Your odds of getting attacked and killed by a shark are 1 in 3,748,067. In a lifetime, you are more likely to die from fireworks or lightning. Whereas over 100 million sharks are killed every year by humans.

#11

Whale sharks are the world’s biggest fish.

#12

Sharks mature slowly and reach reproductive age anywhere from 12 to 15 years.

#13

Hammerhead sharks' eyes are on the sides of their heads, so they have nearly a 360-degree sight line. Their panoramic view of the undersea world is inhibited by two blind spots, one in front of the snout and the other directly behind the head.

#14

Sharks predate the dinosaurs by 200 million years.

#15

Great whites can detect one drop of blood in 25 gal (100 L) of water and can sense even tiny amounts of blood in the water up to 3 mi (5 km) away.

(sorry if this took a lot of time but i had search somethings)

Have a nice day!

Answer:

Sharks do not have bones. ... Most sharks have good eyesight. ... Sharks have special electroreceptor organs. ... Shark skin feels similar to sandpaper. ... Sharks can go into a trance. ... Sharks have been around a very long time. ... Scientists age sharks by counting the rings on their vertebrae. ... Blue sharks are really blue.Sharks, in some form or another, have been around for 450 million years. ... There are over 500 species of shark. ... Sharks do not have bones. ... The whale shark is the largest fish in the ocean. ... Another shark species is the hammerhead shark, known for its distinct appearance.

Explanation:

What evidence from the study supports the hypothesis that dogs might use a magnetic sense to navigate?

Answers

Answer:

Yes.

Explanation:

Yes, a new research indicates that dogs might use a magnetic sense to navigate. Dogs has world class nose which helps them to navigate to their destination but it also has a magnetic compass that helps them in navigation. The dogs use magnetic field of the earth to find out shortcut ways in the unknown land or terrain so the hypothesis is right that dogs used magnetic sense for navigation.

Answer:

Yes

Explanation:

Yes, a new research indicates that dogs might use a magnetic sense to navigate. Dogs has world class nose which helps them to navigate to their destination but it also has a magnetic compass that helps them in navigation. The dogs use magnetic field of the earth to find out shortcut ways in the unknown land or terrain so the hypothesis is right that dogs used magnetic sense for navigation.

This is the correct answer so i m going to copy paste it for points sorry :(

true or false: alleles for the same trait are at different locations on homologous chromosomes​

Answers

Answer:

TRUE

Explanation:

I HOPE ITS HELP YOU;)

HELP ME PLEASE ILL GIVE BRAINLY IF U GET IT RIGHT PLEASE!!!!

Answers

Answer:

the right answer is option B

Please help due in 10 minutes!!!
Explain the 5 ways to reach Hardy-Weinberg equilibrium, does this mean evolution is occurring?

Answers

There are five basic Hardy-Weinberg assumptions: no mutation, random mating, no gene flow, infinite population size, and no selection. If the assumptions are not met for a gene, the population may evolve for that gene (the gene's allele frequencies may change).

Name one adaptation that allows desert plants to survive with little water?

Answers

Answer:

stomata

Explanation:

This adaptation helps cacti reduce water loss by keeping the hot, dry wind from blowing directly across the stomata. The leaves and stems of many desert plants have a thick, waxy covering.

Gregor Mendel, a 19th century monk, used pea plants to arrive at several conclusions
about how traits are passed on to offspring. One conclusion became known as the Law of
Segregation. The illustration below shows how this law operates.
Parent 1
Parent 2
Offspring 1 Offspring 2 Offspring 3 Offspring 4
Which conclusion can you make based on Mendel's work as shown in the diagram?
Parent 1 has the dominant trait
Parent 2 has the dominant trait.
The offspring inherit traits only from Parent 1.
The offspring will not pass on the trait, inherited from Parent 2, to their offspring.

Answers

Answer:

I think the answer is parent one has to dominant off string since it looks more like them since they might they might have better geans

Answer:

Parent 1 has the dominant trait

Deco cubes with 3 types of solutions science

Answers

Answer:

Below

Explanation:

Deco cubes with 3 types of solutions sciences

Answer:

owwwwweeeaaaa my god!

Explanation:

put "Environmental Pressure" in a sentence

Answers

Answer:

Organisms are subject to environmental pressures, but they also modify their habitats

2. Create a poster on how one should be careful around animals and avoid animal attack.
Remember, a poster must have
a slogan
b. a picture
a few words​

Answers

This seems easy.. You got this.

Why do modern scientists use repeated
experiments to develop and test hypotheses?
Repeated experiments that show the same
results prove that scientific information will
never change
Repeated experiments that show the same
results are less likely to contain experimental
errors.
Repeated experiments that show the same
results guarantee that all scientists will agree
with the experimenter's explanations

Answers

Answer:

Alin dito ang madalas mong ginagamit sa social media

Answer:

Repeated experiments that show the same results are less likely to contain experimental errors.

Explanation:

4. Which statement is an example of how
environmental factors affect gene expression?
A. Your finger becomes callus from writing with a
pencil
B. The amounts of sun, water, and nutrients affect the
growth of a plant
C. Parents with red hair have a child with red hair
D. A red snapdragon flower is crossed with a white
snapdragon flower to produce a pink snapdragon flower.

Answers

Answer:

B. The amounts of sun, water, and

nutrients affect the growth of a plant

Explanation:

Gene expression is the way by which the genes of an organism instructs the production of proteins, which are responsible for the organism's phenotype. However, the trait or characteristics possessed by organisms are not strictly or 100% dependent on the genotypic factors but also on the environmental factors.

Environmental factors are the biotic (living) and abiotic (non-living) factors that affect organisms development and growth. An example is how the amount of sun, water, and nutrients, which are all environmental factors, affect the growth of a plant. Growth in plant, therefore, affects gene expression.

I need help with this question

Answers

Answer:

B

Explanation:

Please please please help me

Answers

Answer:

B. Electrical energy is being transformed into thermal energy

Explanation:

The energy provided by the socket is electrical and is then transformed into thermal so the hair can be dried.

How are viruses, bacteria, and parasites alike?
A. They are non-living and can cause disease.
O
B. They are multi-cellular and can cause disease.
O C. They can infect a host and cause disease.
O
D. They are unicellular and can cause disease.

Answers

C they can infect a host and cause disease
Edge 2020

1. name the mutation
original strand of dna:AATCGTC
mutated strand of dna:TAATCGTC

Answers

Answer:

Insertion

Explanation:

An insertion is the addition of one or more nucleotide base pairs into a DNA sequence.

In this case, T was added to the strand

BEST ANSWER GETS BRAINLYEST
When talking about the products of photosynthesis, why is it a HUGE issue when a vast amount of the rainforests is dying along with vast amounts of forests from fires/deforestation? Remember, we know that this hurts the ecosystems of animals living there, but what else does it effect?

Question 5 options:

the creation of carbon dioxide


the creation of carbon monoxide


the creation of too much smoke


the creation of oxygen

Answers

Answer: the creation of oxygen

Explanation:

took the K12 Quiz (Note: not to sure its right if it aint so so sorry!)


What are the four types of adaptations?

Answers

behavioral

physiological

structural

Explanation:

sorry I only know three

Answer: There are three types of adaptations: Behavioral, Physiological, and Structural.

If you have done odesseyware please help

Air that comes in from the ocean during the day is usually _____.
1. cooler than the on land

2. warmer than the air on land

3. the same temperature as the air on land

4. drier than the air on land

Answers

answer iits warmer

Explanation:

2

bc the water absorbs the heat from the sun

Write a small paragraph explaining how metamorphic rocks form and what they are like.

Include the following words in your paragraph:

Heat
Pressure
Context and regional metamorphism
Foliated
Non foliated

Answers

Answer:

Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.

Answer:

Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.

Explanation:

(iii) Parts of _________ help us to maintain body balance
a) Outer ear
c) Middle ear
help us to maintain body balance.
b) inner ear
d) ear pinna

Answers

Inner ear have a nice day

Answer:

b. inner ear

Explanation:

vestibular system which is found in the inner ear is essential in our sense of balance.

What do we call an organism that is not native to an environment, but is able to thrive anyway?

Answers

Answer:

An invasive species

Explanation:

Invasive species come from other environments, many times on accident, but usually thrive so much that they end up taking over and starving other native creatures by taking the resources. Hope this helps! (Brainliest appreciated :))

Some research studies claim that a person with antisocial personality disorder will not have a(n) __________ in stress hormone levels when under __________.

decrease . . . medication
increase . . . stress
decrease . . . stress
increase . . . medication

Answers

Answer:

B. Increase...stress

Explanation:

Correct on Edg 2021

Some research studies claim that a person with an antisocial personality disorder will not have a(n) increase in stress hormone levels when under stress. Option B.

What is an antisocial personality disorder(Disease)?

Generally, An antisocial personality disorder is simply a personality disorder marked by persistent antisocial, irresponsible actions

In conclusion, Patients are always violent, with disdain for any hurt or pain given to others, and an inability to sustain long-term social and personal connections.

Read more about Disease

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A family business had bred dogs for over 250 years. During this time, 125 generations of dogs were bred for a single trait: protective instincts. Immediately after
birth, the puppies are sorted based on whether or not they have a white patch of fur on their chests. Those without this trait, are no longer bred for their
business and instead are adopted to pet stores and not private sales for people requesting the desired trait of protective instincts.
How could the breeders know these other dogs will not have the traits they are looking for when they are just new-born puppies?

Answers

Answer:

They can know if the trait has been carried on by looking at the bred dogs that have the trait and determining if the trait has been passed down by similar characteristics between the parent with the trait and the puppy that could have the trait.

Explanation:

7. To what Super group does the ameba belong? ? mark as brainliest first to be correct​

Answers

Answer:

I-Hispanic okanye i-latino kunye ne-Hispanic okanye i-latino kunye ne-Hispanic okanye i-latino kunye ne-Hispanic okanye i-latino yendalo kwaye ayikho iplastiki endiyidlalayo ndiyenza bombastic

(Unikonta)
A number of protists plus animals and fungi comprises the supergroup unikonta. Many of the protists of the unikon are amebas. An amoeba is any organism or cell that, by stretching its plasma membrane, moves and feeds. The plasma membranes' extensions are known as 'pseudopods'.

Help plzzzzzzzzz

During G2 phase:

A.) The DNA has already replicated and the cell continues to grow

B.) The cell will grow. The cell will get larger.

C.) The nucleus divides.

D.) DNA replicates (copies)

Answers

Answer:

A

Explanation:

This is the answer, hope it helps.

HELP ASAP PLS IF U ANSWER U GET 40 POINTS THANKS

Answers

Explanation:

The grass help feeds the baboon. This means the baboon will have to poop out the grass. Then the dung bettle feeds off of that poop.

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If c(x) = 4x 2 and d(x) = x + 5x, what is (c.d)(x)?4x + 18x 10xx + 9x-216x + 4x-64x + 20x-2 Jeri finds a pile of money with at least $\$200$. If she puts $\$80$ of the pile in her left pocket, gives away $\frac{1}{3}$ of the rest of the pile, and then puts the rest in her right pocket, she'll have more money than if she instead gave away $\$200$ of the original pile and kept the rest. What are the possible values of the number of dollars in the original pile of money? (Give your answer as an interval.) Who are the characters that died up until scene 5 of Macbeth? Nowadays, the birth rate in American society has fallen sharply, which may be due to gun violence, novel coronavirus, inflation and other issues. Gun reform is imminent. How was industrialization similar in Japan and the United States Write a while loop that adds 5 to userNum while userNum is less than 20, displaying the result after each addition. Ex: For userNum The warren court was the us supreme court during earl warrens service as chief justice from 1953 to 1969. warren court critics believed that decisions like miranda v. arizona were examples of judicial activism. states rights. affirmative action. constitutional overreach. Find the time required for an investment of 5000 dollars to grow to 6000 dollars at an interest rate of 7.5 percent per year, compounded quarterly. A waterfront home is valued at $3 million dollars. The seller and the buyer have assets of more than one million dollars. The parties have requested Designated Sales Associates, as each wants a single agent. What can the broker do how do protons determine the identity of an atom Cora is wrapping a ribbon around a cylinder-shaped gift box. The box has a diameter of 15 inches and the ribbon is 60 inches long. Cora is able to wrap the ribbon all the way around the box once, and then continue so that the second end of the ribbon passes the first end. What is the central angle formed between the ends of the ribbon? Round your answer to the nearest tenth of a degree. A 3.5 mH inductor and a 4.5 mH inductor are connected in parallel. When the total emf of the combination is 16 V, the rate of change of the current in the larger inductor is: what is the difference between mitosis and meiosis _________ who migrate have a harder time with the language barrier my father _went on a tour of china, is coming back this evening A line passes through the points ( p , a ) and ( p , a ) where p and a are real numbers. If p = 0 , what is the y-intercept? Explain your reasoning. Describe the work Juan did in Section K HELP PLS PLS!!!! look at pic In a study to estimate the proportion of residents in a certain city and its suburbs who favor the construction of a nuclear power plant, it is found that 74 of 100 urban residents favor the construction while only 70 of 125 suburban residents are in favor. Is there a significant difference between the proportions of urban and suburban residents who favor constructing nuclear plants Write the number in expanded form for the significant digits117.00020.01813.2653.40000.8100