A student likes to attend football games, no matter how cold and snowy the weather becomes. She is going to a game on a very cold day and takes along a hand warmer. She activates it and tucks it into the glove she is wearing. She holds her hands together, and before long, her hands are warm. Which best describes how her hands were warmed?
a: Heat was transferred by conduction, resulting in an increase in kinetic energy.
b: Heat was transformed by convection, resulting in the conservation of energy
c: Thermal energy was transferred by currents, resulting in an increase in kinetic energy.
d: Heat was transformed by radiation, resulting in an increase in kinetic energy.

Answers

Answer 1

Answer:

The correct answer is - a: Heat was transferred by conduction, resulting in an increase in kinetic energy.

Explanation:

Conduction is ne of the het transfer method where particular substance is heated and increase the kinetic energy which leads to the molecules to vibrate more and move or jump to the particles present in neughbouring substance  and transfer some part of the enrgy.

This transfer is a continuous process untill both end become of same temperature of have same kinetic energy, In this case, heat is tranfer ffrom hand to gloves and to the other hand which are hold together after activating them.


Related Questions

What is true about cellular respiration?

Answers

Answer:

Cellular respiration can occur both aerobically (using oxygen), or anaerobically (without oxygen). During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts.

Hope this helps, have a wonderful day/night, stay safe, happy holidays, and merry christmas!

1. Other than having many features in common, state other characteristics of species 2. Give reasons for the loss of energy from one trophic level to the next in a food chain.

Answers

Answer:

As a metabolic heat.

Explanation:

The loss of energy from one trophic level to the next in a food chain occurs because energy is lost in the form of heat when the organisms from one trophic level are consumed by organisms from the next level. Only 10% of energy is transferred from one trophic level to another while the remaining 90% energy is lost in the form of heat energy in the ecosystem.

A particularly long radio wave has a wavelength of 1.5 x 10^9 meters. What is the frequency of this radio wave?

Answers

Answer:

0.2Hz

Explanation:

The wavelength of a radiowave can be calculated this;

λ = v/f

Where;

λ = Wavelength (m)

v = speed (m/s)

f = frequency (Hz)

Based on the information provided in this question, λ = 1.5 x 10^9 meters, c = 3 × 10^8m/s, f = ?

Hence, using λ = v/f

f = v/λ

f = 3 × 10^8 ÷ 1.5 x 10^9

f = 2 × 10^(8-9)

f = 2 × 10^-1

f = 0.2Hz

[50 points... Will give brainliest] Explain how natural selection is impacted by genetic differences, variation, and survival.​

Answers

Answer:

Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation. Some new alleles increase an organism's ability to survive and reproduce, which then ensures the survival of the allele in the population.

Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.

Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.

I changed it a lot Mark me as brainliest!

What organisms feed on dissolved organic matter?

Answers

Answer:

Decomposers

Explanation:

Decomposers, which include bacteria, fungi, and other microorganisms, are the other major group in the food web. They feed on the remains of all aquatic organisms and in so doing break down or decay organic matter, returning it to an inorganic state.

Slowing signals between neurons is a function of __________. A. excitatory receptors B. excitatory neurotransmitters C. inhibitory receptors D. inhibitory neurotransmitters

Answers

Answer:

D  

inhibitory neurotransmitters

Explanation:

Slowing signals between neurons is a function of inhibitory neurotransmitters. Neurotransmitters are the chemical messengers. Thus, the correct option is D.

What are inhibitory transmitters?

Neurotransmitters are the chemical messengers in the body. These are released by the axon terminals of neuron and transmit the nerve impulse (message) to the neighboring cell (a muscle cell or a nerve cell).

There are primarily two types of neurotransmitters in the body, which are:

1. Excitatory neurotransmitter and 2. Inhibitory neurotransmitter

Inhibitory neurotransmitter have inhibitory effect on the neuron, they reduce the chances that a neuron will fire an action potential. They are responsible for slowing signals between neurons. Example: GABA (gamma amino butyric acid) is a common inhibitory neurotransmitter.

Therefore, the correct option is D.

Learn more about Neurons here:

https://brainly.com/question/24217914

#SPJ5

9. You and your friends have enjoyed a fun time at Stevie B's eating salad, 10 points
pasta, and lots of pizza. Which body systems will work together to get
the nutrients from the food to the body cells?

Answers

Answer:

A)

Explanation:

Legit the entire thing is full of BS answers. No, your digestive system DEFINITELY does not create red blood cells, your bone marrow does.

Eukaryotic cell division requires?​

Answers

Answer:

Division of NucleusDivision of Cytoplasm

I hope this helps!

Answer:

Eukaryotic cell division requires?​, :   first they have too divide their nucleus, followed by dividing their cytoplasm, to complete the division of cells.

- hope this helps

by chance may I get brainliest

:)

GIVING BRAINLIEST
How are deserts and tropical rain forests similar?

A) They both have short growing seasons.
B) They both are found in low latitudes.
C) They both have extreme temperature changes.
D) They both receive very little rainfall.

Please answer with the letter then the explanation!!!

Answers

Answer: C

Explanation:

Answer:

B because the enviroment is very warm i am guessing.

Explanation:

I hope it is correct.

True or false: Systems biology uses microscopy to study how cells use energy. If false, make it a correct statement

Answers

Answer:

FALSE

Explanation:

A system is a combination of components to form a more complex organization. Systems biology entails the study of a biological system and the modeling of its dynamic behavior by analyzing the interactions among its parts.

It focuses on the the study of the interactions and behavior of the components of biological entities, including molecules, cells, organs, and organisms.

Hope this helps :)

Hoping for Brainliest!

A man who has cystic fibrosis married a healthy women. They produce 2 children who both have cystic fiber. What are the genotypes of the man and women? (use symbols to represent the alleles and which parent is which)

Answers

Answer:

The correct answer would be -

Father - both alleles are recessive for the gene - cc

Mother - carrier with the heterozygous condition - Cc

Explanation:

Cystic fibrosis is a recessive genetic disease that means it exhibits only if both copies of the gene mutated, If there is only one copy of the gene is mutated the person will be healthy however, he or she will be a carrier of the mutated gene.

Given: Father has cystic fibrosis which means he has two copies of the mutated gene - cc (c - recessive)

Female - she is healthy now there is two conditions possible

1. if the mother is healthy -  CC (normal allele)

  C     C

c Cc  Cc

c  Cc  Cc

All offspring are in the heterozygous condition that means they are healthy carriers which is not given in the question so women must be a carrier

2. Carrier mother -  Cc

   C     c

c    Cc  cc

c   Cc   cc

Here 50% chances of having children with CF so it is possible as two offsprings have CF according to question

Thus, Father - both alleles are recessive for the gene - cc

Mother - carrier with the heterozygous condition - Cc

Using the graph of data from this experiment, at which point was the light source most likely removed?
Ο Α
OB
ОС
OD

Answers

Answer:

its B my dude sjdjdjdjdhdhd

Answer: The Correct Andwer Is C

Explanation:

I took The Test And Its The Right Answer

PLEASE VOTE BRAINLIEST

Please help QUICKKK! I'm timed!!
It’s question 1 ASAP PLS

Answers

I believe the answer is D, because homologous chromosomes refers to a set of chromosomes, one being maternal (coming from the mom) and one paternal (coming for the dad), that pair up together during fertilization.

Patrick met Patti at the dance. Both of them are heterozygous for their pink body color, which is dominated over a yellow body color.

Answers

i don’t know what your trying to say, but if the have an offspring the percentage chance of it being dominant is 50% and the recessive chance would also be 50%

32. Why are stains used to study cells? *
O to kill cells
to magnify cells
to make cells visible
to make cells more active

Answers

Explanation:

Stains are used to make cells visible.

Minerals are rarely used in everyday life true or false

Answers

Answer: False

Reason: We Use Minerals In our day to day life, when it comes to cooking, or burning. We use Salt to cook amazing meals, and some pots and pans have minerals built in to them so that they last longer over the years you cook with them. When we burn in the fireplace or in the backyard, some of us use coal and light it up, and sometimes, we use minerals to make buildings. In one of my neighboring towns, their City Hall has little mineral pieces built into the City Hall. I hope this helps, and happy holidays! :)

How might a healthy, actively hunting wolf pack impact the elk herd population density? Explain your answer

Answers

A wolf is a good example of the srongest dog

3. Why do living organisms need nutrients?

Answers

Answer:

helps break down food to give organisms energy

Explanation:

Explanation:

They are necessary to the lives of people, plants, animals, and all other organisms. Nutrients help break down food to give organisms energy. They are used in every process of an organism's body. Some of the processes are growth (building cells), repair (healing a wound), and maintaining life (breathing).

hope it helps!

In butterflies, white and blue wing color are co-dominant. Butterflies with both traits exhibit patches of blue and white on their wings. Two heterozygous butterflies are mated. What percentage of butterflies will also be heterozygous? Group of answer choices

Answers

Answer:

50%

Explanation:

A cell moves particles from a region of a lesser concentration to region of greater concentration by ____???????

Answers

By active transport

How are precipitation and temperature different between the polar and tropical climate zones?

Answers

Answer:

The temperature is colder in the polar climate zones. Also, there is less precipitation in polar climate zones. Meanwhile,the temperature is warmer in the tropical climate zones. Also, there is more precipitation in tropical climate zones.

Explanation:

The earth is extremely diverse in its ecosystem. Different regions are called climate biomes to understand patterns of meteorology, biology, and natural phenomena.

The biggest difference between tropical and polar climates is the difference in temperature. The tropical climate is close to the equator and has more sun all year round than anywhere else on the planet, but the polar climate is the furthest from the equator and has the least sunlight and heat of any part of the world. This makes  winters harsher and summers shorter in polar climates, but hotter virtually every day in tropical climates. Both climates are reminiscent of precipitation (such as tropical rains and polar snow), but both can  be quite dry. Antarctica is said to be the largest desert in the world because there is little snow falling towards the center of the continent.

What are examples of tropical desserts?

Tropical deserts, such as the Namib Desert in Africa, are so hot and dry that it is difficult  to survive.

Thus it concludes that precipitation and temperature are different between the polar and tropical climate zones.

to know more about the polar zone refer to the link?

https://brainly.com/question/16218

A community cannot be termed healthy unless each of its individual is healthy. comment on this statement.

Answers

Answer:

this statement does not make sense to me, but ok.

Explanation:

;/

Answer:

you neeed everyone to be healthy before you state that everyones healthy

Explanation:

when oil coal and natural gas are held away from the rest of the carbon cycle for a long time it forms

A) fossil fuel
B) carbon
C)limestone
D) soil

Answers

Answer:

fossil fuels

Explanation:

oil, coal, and natural gasses once separated for a long time, form fossil fuels

c limestone this is right

Jacob a 40 year old man who is 6 foot tall and weighs 225 pounds has been diagnosed with atherosclerosis. What healthcare plan would you design for this patient? prescribe a medication to reduce bad cholesterol and no other changes need to be made. patient is just slightly overweight and she is worrying to much about his health, therefore no change. patient should make lifestyle changes to healthier foods and start an exercise plan to reduce his weight by 30 pounds prescribe a medication that lowers blood pressure and no other changes need to be made.

Answers

Answer:

The patient should make lifestyle changes to healthier foods and start an exercise plan to reduce his weight by 30 pounds.

Explanation:

We know that the patient weighs 225 pounds, and his height is 6 feet. With this information, we can determine his Body Mass Index (BMI) using the formula:

BMI= weight/(height)²

BMI= 225/(6)²

BMI= 30.5

Once that we calculated his BMI, we compare the result with the reference chart, here we can see that for his height. he is obese. This coincides with the fact that he has been diagnosed with atherosclerosis. His body has been placing the extra fat in the arteries.

The best plan for Jabob would be to make a lifestyle change to healthier foods and an exercise plan that helps him to lose weight so that his BMI would be approximately 25 and his weight of 195 pounds. Also, this plan will reduce cholesterol levels.

Why are the terrestrial planets made up of rock and metal and the jovian planets made up of gas?

Answers

Answer:  The terrestrial planets formed close to the Sun where temperatures were well suited for rock and metal to condense. The jovian planets formed outside what is called the frost line, where temperatures were low enough for ice condensation.

Explanation:

Which new york city is located at 42 degrees 39 north and 73 degrees 45 west

Answers

Alabany according to g0ggle ;))

Which animals should not be vaccinated?

Answers

Answer:

Every dog and cat should be appropriately immunised, and each individual animal should be vaccinated as frequently as considered necessary by their veterinarian to provide protection. The vaccination protocol to be followed and the vaccines to be used should be determined within a veterinarian–client–patient relationship. The decision should be determined by factors such as the individual animal’s health status, the animal’s age and likely effects of maternally derived antibodies (MDA), the particular disease and environmental risks to the animal, and the duration of immunity (DOI) of available vaccines.

Which is a function of the mitochondrion cell? *

breaking down food particles

turns energy into smaller particles so the organelles can absorb it

packaging and secreting products

making proteins

Answers

Answer:

can some one baned me

Explanation:

PPLLZZ

Breaking down food particles

What are the two reactions that take place in the process of photosynthesis?

Answers

Answer:

light-dependant reactions and Calvin cycle:)

Explanation:

Well, In the light-dependent reactions, which take place at the thylakoid membrane, chlorophyll absorbs energy from sunlight and then converts it into chemical energy with the use of water.

How is energy released from a molecule of ATP?

Help!!

Answers

Explanation:

ATP stands for Adenosine Triphosphate. It is the compound by which energy is stored and transferred in a cell.

It is made up of a nitrogenous base, the sugar and three phosphate groups.

The compound is produce as a product of photosynthesis and use to store energy.

Energy is produced from this compound in the following steps,

a cell in need of energy spends the ATP currencyfrom the three phosphorous groups  attached to the tail, one is split of.ATP then becomes ADP, Adenosine Di- phosphateit is the energy holding the phosphate group that is released and is used by the body.
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