What happens when a penny is dropped from a height of 20 meters?
O The force of gravity causes it to accelerate.
O It falls at a constant velocity.
O Its mass doubles for every second it falls.
O It changes direction every 9.8 meters.

Answers

Answer 1

Answer:

#1.The force of gravity causes it to accelerate

Explanation:

As acceleration is the rate of change in velocity of an object with respect to time. ... The acceleration of penny is due to the force of gravity. Thus, we can conclude that the force of gravity causes it to accelerate.


Related Questions

Name 2 diseases caused by bacteria and the species of bacteria which cause them.​

Answers

Answer:

here u go

Common pathogenic bacteria and the types of bacterial diseases they cause include: Escherichia coli and Salmonella cause food poisoning. Helicobacter pylori cause gastritis and ulcers. Neisseria gonorrhoeae causes the sexually transmitted disease gonorrhea. Neisseria meningitidis causes meningitis.

PLS MARK ME AS BRAINLIST

Answer: Escherichia coli and Salmonella cause food poisoning.

Explanation:

After running laps, your body temperature increases

Answers

Answer:

this is true

Explanation:

what is the complementary DNA for TACGGCTTA

Answers

Answer: ATG CCG AAT

Explanation: In complementary DNA, you will want to flip the letters.

A=T

T=A

G=C

C=G

A will never match with C or G. Vice versa.

Please needed as soon as possible thank you!

Answers

Answer:

hemopoiesis

It doesn't protect internal organs. All the others are functions of the skeletal system

Answer:

I think it is B)

production of blood-forming hormones.

Explanation:

All the other ones are functions of the skeletal system.

1.Bacillus thuringiensis is a species of bacteria that produces a protein called as______ protein ​

Answers

Insecticidal protein

Natural disasters can also play a huge role in changing selection pressures for a species. How could a natural disaster cause a similar change in a population?

Answers

Answer:

it raises important concerns about increased human exposure to coastal flooding, hurricanes, and tsunamis. Explanation: feel free to mark brainliest. have a good day and gn

What structures in a mantis shrimp store energy?

Answers

The Muscles, the shrimp stores energy in it's muscles.

Answer:

They show that a saddle-shaped structure in the mantis shrimp's limbs, which acts like a spring to store and then release energy, is composed of two layers made of different materials.

Help I don’t understand

Answers

Answer:

The answer is B!

Explanation:

Binary fission is a form of asexual reproduction, so gametes cannot be involved. Which eliminates A and C... also, it doesn't just occur in animal cells, but plant cells too, which eliminates D. So the answer is B!

HELP ME PLEASE.............

Answers

Answer: it’s 2n

Explanation:

The diagram below shows two kinds of cells.

A biologist wants to classify protein secretions into groups based on the principal function of the protein. Which cell would the biologist select to study and why?

Answers

Answer:

I think it may be the second one but im not that sure

Answer:B

Explanation:

suggest how a dimetrodon would have to behave in order to use its sail to warm its body ?

Answers

PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG. PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG.

1. A cell that has half the number of chromosomes in a normal body cell is a
a. Diploid
b. Haploid
C. A genetic disorder
d. Dying​

Answers

Diploid because diploid cells have 2 sets of chromosomes

Answer:

Haploid...?

Explanation:

I pretty sure Haploid has like one set of chromosomes and Diploid has 2

The ability to curl the tongue in dominant to the inability to do so. If Eric (heterozygous tongue curler) marries Brandy (also heterozygous) what are the predicted GTs and PTs of the offspring?

Answers

Answer:

Genotype = 1CC: 2Cc: 1cc

Phenotype = 3 tongue curler : 1 non-tongue curler

Explanation:

This question involves a single gene that codes for the ability or not to curl the tongue. The ability to curl the tongue (C) is dominant to the inability to do so (c). This means that a heterozygote will be able to curl his/her tongue.

According to this question, If Eric, who is a heterozygous tongue curler (Cc) marries Brandy who is also heterozygous (Cc) i.e. Cc × Cc, the following gametes will be produced by each parent: C and c.

Using these gametes in a punnet square (see attached image), the predicted genotype of the offspring is 1CC: 2Cc: 1cc while the predicted phenotype is 3 tongue curler : 1 non-tongue curler.

Carbon-14 has a half life of 5730 years, how many grams of a 4.0 g sample would be left after 3.5 half-lifes?

Answers

4/2 2/2 1/2 0.5/1/2 = 0.325

Select the correct answer.
Immunoglobins are also known as antibodies.
A.
True
B.
False

Answers

Answer:

A.

A. True

Explanation:

Immunoglobulins, also known as antibodies, are glycoprotein molecules produced by plasma cells (white blood cells). They act as a critical part of the immune response by specifically recognizing and binding to particular antigens, such as bacteria or viruses, and aiding in their destruction.

Two children have the same parents. If one child has a straight thumb and the other a bent thumb, the children must have different

Answers

Hi, I answered in the comments of this but I will put it here

The correct answer is B. Alleles for thumb shape

If the anticodon of a molecule of tRNA has the sequence GAU, what was the original DNA sequence?

Answers

Answer:it’s not CUA

Explanation:

Please help please and thank you

Answers

Answer:

The answer is : recombinant DNA combines genes from two different organisms

The neck is a ________.
A. First Class Lever
B. Second Class Lever
C. Third class Lever
D. fourth class lever​

Answers

Answer:

The neck is a first class lever

Explanation:

Answer:

A. a first class lever

Explanation:

Which role do proteins play in the body?
A. They provide long-term energy storage.
B. They provide short-term energy storage.
C. They provide structure to form DNA and RNA molecules.
D. They provide structure for body tissue, hair, and fingernails.

Answers

I believe it’s D. Because Protein has many roles in your body. It helps repair and build your body's tissues, allows metabolic reactions to take place and coordinates bodily functions. In addition to providing your body with a structural framework, proteins also maintain proper pH and fluid balance

Answer:

D. They provide structure for body tissue, hair, and fingernails.

Explanation:

Hope this helps

what is imunisition



please help me guys ​

Answers

Hey There!_____________________________________Answer:_____________________________________

[tex]\Large\textbf{ACTIVE AND PASSIVE IMMUNITY}[/tex]

Active Immunity, Immunity which is acquired by the own immune response of the body.

Passive Immunity, Immunity which is acquired and dependent upon the antibodies transported from another person or even an animal. A person's immune system does not acquire or make the antibodies itself. A newborn baby acquires passive immunity from its mother through the placenta.

                            x---------------------------------------------------x

[tex]\Huge\text{Vaccination:}[/tex]

Vaccination is a artificial active immunity. Artificial because the antibodies are not acquired by any natural infection but it is injected into the healthy body of the person. It is Active immunity because the body does not get already made (from other animal) antibodies but it acts on the small amount of the pathogen which is injected in the body and acquires the antibodies itself. So the person acquires antibodies naturally acting on the antigen. Antigen is any foreign agent which triggers the immune system to produce antibodies against it. Vaccines contains antigen which is a harmless form of the bacteria or a virus that causes the disease you are being immunised against. The bacteria or virus are in small proportion and greatly weakened in the vaccine so they just trigger an immune response without causing any real damage. When Vaccine is injected in the body, the immune system starts to make antibodies of different forms against the antigen(Virus or bacteria in the vaccine). When the appropriate shape antibody reacts with the antigen and forms antibody-antigen complex which destroys the antigen. This means that type and shape of antibody is perfect to work against that antigen, then the immune system start forming only those kind of antibodies in great proportion and the Person gets immunised by the vaccine in a natural way.

_____________________________________Best Regards,'Borz'

HELP PLEASEE WILL GIVE BRAINLIEST!!!

Determine if each item is a conductor or an insulator. *
8 points
insulator
conductor
layers of clothing
plastic
O
a silver spoon
fur on your pet
a metal fence
copper wire
oven mitts
gold jewelry

Answers

Answer:

I need 5 brainliest to level up

Explanation:

Conductor- Silver spoon, metal fence, copper wire, gold jewelry

Insulator- Layers of clothing, plastic, fur on your pet

Lack of which factor would be most likely to turn an alien species into an invasive species?


mates

suitable food

suitable habitat

predators

Answers

Answer:

predators

Explanation:

The correct answer is predators. An alien species that finds plenty of food and suitable habitat in its new home is usually able to find mates and reproduce well. But the competing species may become endangered or even extinct, because the alien (now invasive) species has no natural predators in the new environment, and its population can therefore grow without limits.

Answer: predators

Explanation:

You learned in the reading that some symbiotic relationships are helpful and some are harmful. Look at the symbiotic relationships listed below and select all where at least one organism is harmed (the reading calls these harmful relationships). Group of answer choices Commensalism Parasitism Mutualism Predator-Prey Competition

Answers

Answer: Parasitism, Predator-Prey, Competition

Explanation:

The symbiotic relationship is the relationship in which two distinct species are associated with each other. In the symbiotic relation the species may get harm or benefit of association. Parasitism can be defined as the symbiotic relationship in which one species get harmed and other one receives the benefit. For example, malarial parasite plasmodium derives the nourishment from the host body (human). Predator-prey relationship is also harmful as the predator kills the prey to obtain it as food. Competition is harmful in the sense two or more organisms of the same or different species compete for the same resource, the most dominant receives the resource the inferior organism is either killed or harmed in the fight for resources.

What do cells in the body not need to do?

Answers

Answer:

Read every gene in the whole cell.

Cells in the body provide the structure and give nutrients to the body and perform functions.

Functions of cell:

They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.

Cells also contain the body's hereditary material and can make copies of themselves. Cells have many parts, each with a different function.  The job of the cell body is to control all of the functions of the cell. A Cell has two membranes named cell wall and cell membrane it is protected by these two membranes.

Find more information about cell here:

brainly.com/question/13920046

what describes absorption

Answers

Answer:

Absorption is the transfer of the energy of a wave to matter as the wave passes through it.

Explanation:

How could global warming impact agriculture?
A) The best climates for agriculture could shift to locations further north.
B) Global warming could cause an increase in water loss from soil by evaporation.
C) Global warming could cause an increase in water loss from plant transpiration.
D) Sources of irrigations could be harder to find and utilize.
E) All of the above

Answers

Answer:

D, Sources of irrigations could be harder to find and utilize.

Explanation:

Hope that helps, its the right answer :))

Answer:

Its E All of the above

Explanation:

Did a homework help session and the EPIC Worker checked it correct on the topic test

1. What does the cell wall surround?

Answers

The cell wall surrounds the membrane

Answer: hi there, the answer to the question would be ( the plasma membrane)

hope this helps :)

Explanation: the cell membrane surrounds the plasma membrane and administers protection and support.

When humans burn fossil fuels, ________________ is released back into the atmosphere.

Answers

Answer:

Carbon Dioxide

Explanation:

Answer:

Carbon Dioxide

at the cellular level, what caused Sally's cancer

Answers

Answer:

Uncontrollable cell division.

Explanation:

Cancer is a disease which is caused when cells division is uncontrollable and spread into surrounding cells and tissues. Mutations in genes is also responsible for the cause of cancer because this mutation accelerate the rate of cell division or inhibiting normal controls on the system, such as programmed cell death. When the mass of cancerous cells grows with the passage of time, it turn into a tumor.

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