find the kinetic energy of a ball of mass 200 grams moving at a speed of 20m/s​

Answers

Answer 1
We have a mass of 200g (0.2kg) moving at 20m/s

Kinetic Energy KE = ½ mv^2 where m is mass and v is velocity

Actually, v is a vector quantity, so KE = ½ mv•v

The dot product of 2 vectors a and b is abCosθ where θ is the angle between the vectors.

Obviously v•v = v^2 Cos0 = v^2

In this case, we have KE = ½ (0.2)(20^2) = 40kg-m^2/s^2 = 40J

So we have kinetic energy in the amount of 40 Joules.
Answer 2

Answer is 40J...............


Related Questions

how many chromosomes do whales have

Answers

Answer:

i have been researching and i found they have 42 chromosomes. Blue whales have 44 and sperm whales have 46 i was getting different numbers for different whales

Explanation:

Hope i helped!

how can drip irrigation be useful in farming​

Answers

Answer: It helps control the water better and more efficiently. It also helps to save water

Explanation:

Which one of the following organisms IS EATEN BY AN OMNIVORE in this food web?

If you don’t know the answer please don’t guess bc this is ixl and it’ll start me over.

Answers

Answer:

the cytoplankton

Explanation:

when placed in a glucose solution, yeast cells will produce bubbles. which process are the yeast cells carrying out? A. chemosynthesis B. respiration C. photosynthesis D. transpiration​

Answers

Answer:

B. respiration

Explanation:

There's a Quizlet called "Biology 1st 9 weeks review" (it's created by Rodgerst4) that helped me!

The bubbles produced when yeast cells are placed in a glucose solution is because the yeast cells are carrying out respiration. The correction option would be B.

Yeast cells are able to carry out a type of respiration known as anaerobic respiration when placed in a suitable substrate medium like glucose. During this process energy in the form of ATP is generated in the absence of oxygen for the metabolism of the yeast cells. The equation of the reaction is as follows:

[tex]C_6H_1_2O_6 --->2 C_2H_5OH + 2 CO_2[/tex]

Thus, the carbon dioxide gas is released as bubbles in the solution as a result of respiration.

More on anaerobic respiration can be found here: https://brainly.com/question/12605249

Name 2 physical processes that are endothermic but not a chemical reaction?
I need this rn pls

Answers

Answer:Melting ice cubes.Melting solid salts.Evaporating liquid water.Converting frost to water vapor (melting, boiling, and evaporation, in general, are endothermic processes.Making an anhydrous salt from a hydrate.Forming a cation from an atom in the gas phase.Splitting a gas molecule.

what is human inference?​

Answers

Answer:

How humans draw conclusions.

Explanation:

How are graphemes related to synesthesia?

Answers

Grapheme-color synesthesia is a consistent brain-related phenomenon. A syneshete automatically associates distinct, consistent colors with certain letters, numbers, and/or words. A word that is printed in black on a page or wall in front of you will carry its own specific color when you see it.

Answer:

Grapheme–color synesthesia or colored grapheme synesthesia is a form of synesthesia in which an individual's perception of numerals and letters is associated with the experience of colors. Like all forms of synesthesia, grapheme–color synesthesia is involuntary, consistent and memorable.

Explanation:

it is right

A researcher is studying a cornfield that has been recently abandoned by a farmer. By the end of one
year, wild grasses begin to grow in the field.
Identify whether this is an example of primary succession or secondary succession.

Answers

Answer:

ummm

Explanation:

A leech attaches to an animal in feeds of the animals blood what happens to the animal the leech attaches to in this scenario?

Answers

Answer:

their blood will reduce

Answer:

It loses nutrients to the leech is right on edginuity

Explanation:

Recall what you know about nervous tissue to answer the following questions. Nervous tissue can generate and conduct ____ signals that control the body.
answer choices are:
chemical
electrical
thermal

Answers

Answer:

Nervous tissue can generate and conduct electrical signals that control the body.

Explanation:

The neuron is the specialized cell that provides function to nerve tissue. Given the structure of the neuron, this cell is capable of creating and conducting information in the form of electrical impulses or signals, by depolarizing its cell membrane and generating action potentials.

The information generated and transmitted by the neurons allows the nervous system to obtain internal and external information of the organism, as well as to control all the body functions.

    The other options are not true because nerve tissue does not generate or conduct thermal or chemical signals to perform its function.

Answer:

Part 1: electrical

Part 2: A, B, E

Explanation:

did it on edg.

Which idea explains Darwin’s observations about Galapagos Islands finches?

A) biological species concept

B) ecological species concept

C) endangered species extinction

D) sympatric speciation

Answers

Answer:

I think the answer is A) biological species concept

14. Which of the following correctly lists the levels in an ecosystem from largest to smallest?

a. Ecosystem, community, population, individual

b. Community, ecosystem, population, individual

C. Population, ecosystem, individual, community

d. Ecosystem, population, community, individual

Answers

Answer:

(a) Ecosystem, community, population, individual

is right answer I think

what causes a seismic waves

Answers

Answer:

Seismic waves are the waves of energy caused by the sudden breaking of rock within the earth or an explosion. They are the energy that travels through the earth and is recorded on seismographs. Earthquakes radiate seismic energy as both body and surface waves.

Explanation:

Answer:

caused by the sudden breaking of rock within the earth of an explosion.

Explanation:

dont judge me if im wrong

can somebody help me make a claim , evidence and reasoning on “Do you think school days should be made longer?

i need it now please help me

Answers

Answer:

i don't think so school days must be shorter and practical session must be longer theory is boring

Answer:

I think school days should not be made longer as this would impact the students mental health. Students attend school for approximately 7 hours a day in which they learn new content, this time being increased would cause stress and burden on students as classes would be longer and time spent at home would be less. Students need enough time to rest and relax their minds, as well as, spend time with their families. If extending school hours, students will have less time for self-care and family time which can lead to depression and loneliness. However, there are benefits of extending school hours such as more time to finish homework. But, a student's health must come first. In conclusions, school days should not be made longer.

please help A skeletal muscle is a composition of several components bundled one into the other. At which structural level in the muscle does contraction occur to bring about contraction in the whole muscle?
A.
myofibril
B.
muscle fiber
C.
myoneural junction
D.
tendon
E.
fascicle

Answers

Answer:

C. Myoneural Junction

Answer:

myofibril

Explanation:

got it correct!

Meiosis produces which cell type?
haploid
diploid
chromosome
somatic

Answers

Answer:

it produces haploid cells

Explanation:

hope this help :D

it makes haploid cells!!

Please help me! 10 points

Answers

I think Active transport

the table show five of the most common chromosomal abnormalities that occur during reproduction. each abnormality cause significant alteration to the genome of the individual in which they occur. analyze the information in the table and determine the genotype of the abnormality that will result in a male having some female characteristics
a) down syndrome;xy
b)edwards syndrome;xx
c) turner syndrome;xyy
d)kilinefelter syndrome;xxy

Answers

Answer:

d)

Explanation:

The abnormality that will result in a male having some female characteristics is Klinefelter syndrome that is Option D is the correct answer. The Klinefelter syndrome, which has XXY genotype. This disease affects only the male

What are the different types of chromosomal abnormalities?

Chromosomal abnormalities are of different types; some are related to autosomes, and some are related to X and Y chromosomes. The down syndrome happens due to the trisomy in the 21st chromosome, which means instead of two chromosomes, there are three chromosomes.

In Patau syndrome, the trisomy is seen in the 13th pair of homologous chromosomes, and as a result, instead of two chromosomes, three are present. Klinefelter syndrome is associated with males who have an extra X chromosome. Infertility is observed as a result of this male display of female characteristics, such as behavioral changes. Turner syndrome is associated with females who have lost one X chromosome.

As a result, the correct answer is option D, which is Klinefelter syndrome, which is XXY.

Learn more about the chromosomal abnormalities here.

https://brainly.com/question/28666210

#SPJ2

A. Suzie Q wants to know the effect of different colors of light on the growth of plants. She believes that plants can survive best in white light. She buys 5 ferns of the same species, which are all approximately the same age and height. She places one in white light, one in blue light, one in green light, one in red light and one in the closet. All of the ferns are planted in Miracle-Grow and given 20 mL of water once a day for 2 weeks. After the two weeks, Suzie observes the plants and makes measurements.

Answers

Answer:

This question is incomplete, the complete part is: What is the independent variable in this experiment? A) The plant species B) The amount of water that each plant gets C) The amount of time D) The different types of light the plants were put under.

The answer is D

Explanation:

In an experiment, the INDEPENDENT VARIABLE is the variable that is changed or manipulated by the experimenter in order to effect a measurable response.

In this case, Suzie Q wants to know the effect of different colors of light on the growth of plants. She conducts this experiment using different colors of light namely: white light, green light, blue light, red light etc. This shows that the variable being changed/manipulated is the different colors of light. Hence, the INDEPENDENT VARIABLE is the DIFFERENT TYPES OF LIGHT THE PLANT WERE PUT UNDER.

Why is it important to melt the gold to make a jewelery? Why can't we use solid gold to make jewelery, why melt it? *

Write in your words donot copy paste from google

Answers

Answer:

you melt it so that you can mold it into  the shape of jewelry.

Explanation:

you can't mold solid gold!

What happened when Earth's first atmosphere collapsed? Will mark you as brainliest!

- it created oxygen

-it formed the oceans

-it triggered an ice age

-it fell as rain, watering the earliest plants

Answers

Explanation:

solar radiation would break atmospheric water into oxygen, which would react with carbon on the Earth to form carbon dioxide. The air would still be too thin to breathe. The lack of atmosphere would chill the Earth's surface.Plants and land animals would die

Which statement best describes the significance of meiosis to sexual reproduction?
A. It produces haploid gametes, with half the number of chromosomes.
B. It creates organisms with better adaptability to the environment.
C. It allows all types of cells to produce two sets of identical chromosomes.
D. It produces up to eight diploid cells, each with the same number of chromosomes.

Answers

D because the diploid cells

In meiosis sexual reproduction produce haploid cells to produce gametes and chromosome number is reduced, hence option a is correct.

What is meiosis in sexual reproduction?

Gametes or sex cells, which are needed for sexual reproduction are created during meiosis.

It deactivates the sporophytic information while activating the genetic information for the production of sex cells.

Meiosis is a kind of cell division that results in the production of four gamete cells and a 50% reduction in the number of chromosomes in the parent cell. To develop egg and sperm cells for sexual reproduction, this procedure is necessary.

Therefore in sexually reproducing organisms meiosis is important to produce gametes, hence option a is correct.

Learn more about meiosis, here:

https://brainly.com/question/15065279

#SPJ6

Plants have an added layer that animal cells do not. What is that added layer called?

Answers

Answer:

a cell wall

Explanation:

Reasoning: Write a three sentence statement that connects your evidence to your claim
about living organisms.

Answers

Answer:

Living organisms such as birds, animals, plants and microorganisms form the biotic component while land, air and water form the abiotic components. Biotic and abiotic components interact with each other resulting in transfer and replenishment of energy and nutrients.

Explanation:

What event changes an atom into an ion?

Answers

Answer:the gain or loss of one or more electrons (B)

Explanation:

Name of Tail-like organelle used by some protist

Answers

Answer:

flagellum

Explanation:

Flagellum enable some protist to move

i need help

Which factors are most likely to limit the growth of the coral reef in the Caribbean? (4 points)

a
High rainfall and clear waters

b
Low rainfall and excessive sunlight

c
High moisture and excessive sunlight

d
Extreme temperature and cloudy waters

Answers

B because more sunlight kills the reef slowly overtime

Please help it’s due today!!

Answers

5. 1-10 of species per year. 6. More land area and wood products. This means that people around the world look for meat to eat and that people cut down trees that leads to deforestation for resources/materials. 7. A.stop urbanization from growing to rapidly B. If you take/cut down trees replant new one so that we don’t run out of oxygen.
I hope this helps!

Which of the following is not a reason for cell devision?

A. DNA cannot be copied quickly enough in large cells
B.The cell gets too big to process and transport nutrients
C. Surface area to volume ratio becomes to large
D.New cells are needed for growth

Answers

Answer:

C

Explanation:

thats not true

Which two show that onions are not non living and in fact are living

- they respond to stimuli
-engage in movement
-able to reproduce
- use energy

Answers

Answer:

- they respond to stimuli

- able to reproduce

Explanation:

hope I helped

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