Answer:
The mass of the cart is 26.7 kg.
Explanation:
To find this answer use the formula for acceleration first to find how fast the object had to be acccelerating to gain a velocity of 45m/s in 8 seconds flat.
Here's the formula for acceleration:
a = V- V₀ ÷ T (Wher V = final velocity; V₀ = Initial velocity, and T = time)
Plug all known values into the equation and you get -
a = (45m/s - 0m/s) ÷ 8 , which works out to 5.625 m/s²
Once you have this value then you place it into the equation for finding an object's mass, and that formula is:
M = [tex]\frac{F}{a}[/tex] or M = [tex]\frac{150N}{5.625m/s^{2} }[/tex]
This works out to 26.6667 kg or approx. 26.7 kg if you are asked to round it to three significant figures.
What do you think is going to happen to this country's population over the next 20 years?
Answer:
The second answer
Explanation:
different objects in space emit wavelengths of electomagnetic radiation use the chart to match each wavelengths to correct region of the spectrum
Answer: In order of increasing frequency and decreasing wavelength these are: radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.
Explanation:
PLEASE HELP I WILL GIVE 50 POINTS!!!!! (btw its science not biology)
A student suggest that all of earth's changes happen very quickly. Which term best describes this claim?
A. Fossilization
B. Catastrophism
C. Uniformitarianism
D. Superposition
Answer:
B. Catastrophism
Explanation:
Catastrophism is the theory that states that the Earth was mostly shaped by very sudden effects. These sudden and short-lived events would occur worldwide in scope and change the Earth rapidly. This is in contrast to uniformitarianism that states that slow incremental changes made the Earth like it is today. Changes like erosion.
Answer:
The answer is B
Explanation:
I took the quiz
Loss-of-function mutations in the coding region of the homologous gene in humans result in loss of hair, teeth, and sweat glands, as in the toothless men of Sind (India). What does this suggest about hair, teeth, and sweat glands in humans? Select the two correct answers. a) The phenotype of loss of Eda function in humans indicates that Eda has been co-opted by evolution to control different aspects of development, as it does in sticklebacks. b) The phenotype of loss of Eda function in humans indicates that human Eda protein and stickleback fish Eda protein contain structurally similar DNA-binding domains. c) The phenotype of loss of Eda function in humans indicates that Eda controls multiple aspects of human development, either directly by controlling each tissue type independently or by controlling a tissue that is a developmental precursor to the affected tissue types. d) The phenotype of loss of Eda function in humans indicates that human hair and teeth might be homologous to stickleback fish bony plates. e) The phenotype of loss of Eda function in humans indicates that hair, teeth, and sweat glands are homologous structures.
Answer:
c) The phenotype of loss of Eda function in humans indicates that Eda controls multiple aspects of human development, either directly by controlling each tissue type independently or by controlling a tissue that is a developmental precursor to the affected tissue types.
e) The phenotype of loss of Eda function in humans indicates that hair, teeth, and sweat glands are homologous structures.
Loss-of-function mutations in the coding region of the homologous gene in humans result in loss of hair, teeth, and sweat glands, as in the toothless men of Sind (India). This suggestion in their hair, teeth, and sweat glands indicates that a) The phenotype of loss of Eda function in humans indicates that Eda has been co-opted by evolution to control different aspects of development, as it does in sticklebacks. c) The phenotype of loss of Eda function in humans indicates that Eda controls multiple aspects of human development, either directly by controlling each tissue type independently or by controlling a tissue that is a developmental precursor to the affected tissue types.
Ectodysplasm A (EDA) is known as a transmembrane protein in the human body that is responsible for the development of ectodermal tissues of the human skin and teeth.
The cooption of Eda with evolution is likely to bring about changes in the development which results in phenotypic loss of Eda. Various genetic studies reveal the orthologous nature of the Eda gene, indicating a comparable method of development, and Eda plays a part in the control of embryonic ectoderm growth, which is essential for the formation of teeth, hair, as well as the sweat gland.
Therefore, we can conclude that Option A and C are both correct from the following options.
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Sam is out for a long run on a hot day. He is dehydrated and does not have water with him. As he tries to maintain a high exercise intensity, his body is likely experiencing the dual cardiovascular demand.Which two factors make up this demand?
a. The need to pump additional blood to the surface of the skin b. The need for additional hydration c. The need for more ATP d. The need to produce more sweat e. The need to pump additional blood to working muscles f. The need for additional blood plasma
Answer:The dual cardiovascular demands includes: Option A (The need to pump additional blood to the surface of the skin.) And
Option E (The need to pump additional blood to working muscles)
Explanation:
When an individual is performing exercise under the hot atmosphere, the following demands are required:
--> there would be physiological increased demand of the skin to prevent further dehydration .
--> there would be increased energetic demands for muscular activities.
1.) The blood flow to ACTIVE MUSCLES during prolonged exercise under a hot day.
There is increase in carbon dioxide and hydrogen ions, decrease in oxygen levels will cause the smooth muscles of the blood vessels located at the active muscle sites to relax. This enhances the in flow of blood supply oxygen which is needed for the generation of Adenosine triphosphate (ATP) for energy. This requires a greater cardiac pumping capacity.
2) The flow of blood to the skin during during prolonged exercise in a hot day.
To avoid dehydrations during exercise which occurs through the lungs and skin, there is increased cardiac output to remove excess heat generated through thermoregulation of cutaneous circulation.
The hypothalamus:_______
a. initiates voluntary movements.
b. functions in speech recognition
c. controls autonomic nervous system and regulates thirst
d. is regulated by the pituitary gland.
e. plays a very minor role in the maintenance of homeostasis
Answer: Option C..
controls autonomic nervous system and regulates thirst
Explanation:
Hypothalamus controls autonomic nervous system and regulates thirst because it is above the brain stem and it receive autonomic regulatory signals or information , then it then act to integrate and controls autonomic nervous system. The autonomic nervous system help to regulate different types of body functions like sexual arousal, heart rate, pupilatory rate, digestion rate , respiratory rate e.t.c.
How is ATP made in photosynthesis?
Answer:
Light is absorbed and the energy is used to drive electrons from water to generate Nicotinamide adenine dinucleotide phosphate or NADPH and to drive protons across a membrane. These protons return through ATP synthase to make ATP.
Hope this helped! :)
The stage of the demographic transition that shows the most population growth is the
Answer:
transitional stage because it has high birth rate and low death rate probably due to war or domestic problems
What does an urn-shaped age pyramid represent?
Answer:
It represents young or rapidly growing population. In urn-shaped age pyramid, the number of reproductive individuals is higher than the number of pre-reproductive individuals. It represents declining or diminishing population with negative growth.
Sheela wants to demonstrate the importance of photosynthesis to plants and the other living organisms that eat plants. She models the process of photosynthesis that is specifically involved in the production of sugars.
Which process in the light-independent reactions of photosynthesis is she modeling?
the production of oxygen
the production of glucose
the production of carbon dioxide
the production of water
Answer:
the production of glucose
Explanation:
sugar=glucose
Request:
(Brainliest plzzz)
In this process, the light-independent reactions of photosynthesis are she modelling, and the production of glucose. Thus, option "B" is correct.
What is the chemical reaction of photosynthesis?The chemical reaction of photosynthesis is given as follows;
6CO₂(g) + 6H₂O(l) + Energy from light → C₆H₁₂O₆(s) + 6O₂(g)
Six molecules of gaseous carbon dioxide (CO₂) combine with six molecules of liquid water (H₂O) in the presence of energy from Sunlight to produce one molecule of solid glucose (C₆H₁₂O₆) and six molecules of gaseous oxygen (O₂)
Thus, option "B" is correct.
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Which occurs during the light-dependent reactions of photosynthesis?
a.Light energy is absorbed and then converted into chemical energy in the form of ATP and NADPH.
c.Organic molecules, such as proteins, lipids, and nucleic acids, are produced.
d.None of the above
b.ATP and NADPH are used to make glucose
Answer:
In light-dependent reactions the energy from sunlight is absorbed by chlorophyll and converted into chemical energy in the form of electron carrier molecules
Explanation:
Like ATP and NADPH light energy is harnessed in Photosystems I and II both of which are present in the thylakoid membranes of chloroplasts
The digestive and excretory systems guided notes
Answer:
what notes
Explanation:
Ringer’s solution is often given intravenously to patients experiencing dehydration. It contains water, 131mMol/L sodium, and 111mMol/L chloride ions. Why wouldn’t distilled water be used? Why doesn’t the solution contain higher amounts of sodium, chloride, and other electrolytes?
Answer:
It is important to maintain the osmolality of the blood (plasma) at an appropriate level to prevent osmosis into and out of cells by keeping the intra- and extracellular fluids isotonic;
Too much water entering a cell can lead to lysis and too much leaving a cell results in shrinkage, both of which are detrimental.
Ringer's solution seems to be osmotic pressure to animal bodily excretions. Distilled water has the highest moisture contents but lacks critical minerals.
Whenever the individual receives intravenously liquids, a huge volume of pure water has been injected into the vein, causing hypotonicity of blood cells as well as worsening dehydration.Ringer's solution would be used to replenish electrolyte balance. If somehow the solution has a high concentration of sodium, calcium ion, as well as electrolytes, it'll no longer be isotonic towards the participant's bodily fluid.
Thus the response above is correct.
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plz answer my question plz tomorrow is my exam I need my answer plz
Answer:
B
Explanation:
I think the plant which absorbs carbon dioxide during day will dry
Which color of light is reflected by a white t-shirt
Answer:
All of the colors are being reflected
Explanation:
Answer the question - Why is it important for scientists and engineers to work together to solve problems?
Answer:
it is important for them to work together because they can come together with the results form each person and see which is right and which is wrong and learn for their mistakes
Explanation:
Using cases to reason—Scientists and engineers often have to solve problems that others have confronted before. When scientists and engineers work to solve a problem, they may write up their experience as a case study for others to learn from. They will even write up the case study if their solution did not work.
Chameleons have a long tongue used to catch insects. The five toes on each foot are bound in two separate groups: one group of two toes and one group of three toes. This allows chameleons to grasp onto branches. Chameleons also have a flexible tail they use to hold onto branches, and they can change the color of their skin to communicate with other chameleons and for camouflage.
Which statement about chameleons refers to the expression of a trait that is most influenced by the environment?
Answer: Chameleon change the color of their skin to communicate with other chameleons and for camouflage.
Explanation:
The statement that refers to the expression of a trait that is most influenced by the environment is: The chameleon changes its skin color to match its surroundings, option A is correct.
The ability of chameleons to change their skin color is a remarkable adaptation that allows them to blend into their environment for both communication and camouflage purposes. This trait is highly influenced by the environment because the chameleon's color change is a response to external stimuli such as light, temperature, and the presence of other chameleons.
When a chameleon is in a green environment, for example, it can change its skin color to green, effectively camouflaging itself. Similarly, when it needs to communicate or display aggression, it can change its color to brighter or darker shades. This color-changing ability is an essential survival mechanism that allows chameleons to adapt to their surroundings and avoid predators or attract potential mates, option A is correct.
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The appropriate question is:
Chameleons have a long tongue used to catch insects. The five toes on each foot are bound in two separate groups: one group of two toes and one group of three toes. This allows chameleons to grasp onto branches. Chameleons also have a flexible tail they use to hold onto branches, and they can change the color of their skin to communicate with other chameleons and for camouflage. Which statement about chameleons refers to the expression of a trait that is most influenced by the environment?
A. The chameleon changes its skin color to match its surroundings.
B. The chameleon has a long tail that helps it maintain balance.
C. The chameleon has large eyes that provide a wide field of vision.
D. The chameleon has sharp claws that aid in climbing trees.
if a variable in a laboratory experiment does not change it is called the (blank) variable. what is the blank answer?
Answer:
if a variable in a laboratory experiment does not change it is called the (blank) variable
The blank would be independent
Explanation:
Independent variable is the only variable that does not change unlike controlled and dependent variable
I hope I helped you with this problem
If two people who are both heterozygous for the trait of a bent pinky finger have a child, what are the possible genotypes and phenotypes?
genotypes is 1:2:1 & phenotypes is 3:1
l hope this helps you
Answer:
When two people heterozygous for the trait of a bent pinky finger have a child, the possible genotypes CC, Cc and cc -in a ratio of 1:2:1- being the phenotypes bent pinkies: straight pinkies in a ratio of 3:1.
Explanation:
Bent pinky finger is due to a condition called Camptodactyly, characterized by sustained bending of a finger due to a deformity in an interphalangeal joint. Pinky finger camptodactyly is a trait that is inherited in an autosomal dominant pattern.
With camptodactyly (bent pinky finger) C Without camptodacilia (straight pinky finger) cThe parental generation is made up of two heterozygous individuals with bent pinky fingers:
♂ Cc
♀ Cc
The offspring of this hybrid cross, according to Mendelian heritage, can be seen in this Punnett Square:
Alleles C c
C CC Cc
c Cc cc
According to this the offspring will have:
Genotypes:
CC: 25%
Cc: 50%.
cc: 25%
Phenotypes:
Bent pinky finger: 75%
Straight pinky finger: 25%
plz circle yes or no
Answer:
1. No 2. Yes 3. No 4. No
Explanation: no explnation needed
Answer:
no yes no no
srry if its wrong if it is just delete it
Explanation:
hope this helps!
HELP WILL GIVE BRANLIEST! Please give an explanation
Answer:Its the third one
Explanation:ey have man protectuon cells becuase its soft.
Question 8
6.25 pts
Which of the following is NOT a reason for why nitrogen is important to life on Earth?
a.Nitrogen is used to make organic matter, including proteins.
b.Consumers obtain nitrogen into their bodies by eating organisms that contain nitrogen, such
as plants,
O All of these are important to life.
Nitrogen is a necessary nutrient for plants.
Next >
Answer:
O . All of these are important to life
help please its timed
Answer:
1st pic- transcription
2nd pic -3
3rd pic- 2
4th pic -1
Explanation:
Complete the following table, referring to the original gene sequence below. Use the codon chart in your notes to help.
Original gene sequence: TAC – CAA – TGT – ATC
Answer:it’s right
Explanation:
In which part of the digestive system is most of the nutrients from food
absorbed?
large intestine
small intestine
stomach
liver
Answer:
small intestine
Explanation:
Along with water conservation animals also have unique characteristics for
Answer:
They may be soggy and stinky, but they provide critical habitat for tons of plants and animals, help clean our water, control floods, and provide food for humans.
plz answer itplzzzzzzzzzzzz
Answer:
B is the correct answer
DNA polymerase is responsible for pairing the new nucleotides with the template strand. If the template strand reads ATCCGC, what will the newly synthesized strand read
Answer:
ATCCGC-TAGGCG
Explanation:
Which substance is not part of a nucleotide?
sugar
Nitrate
phosphate
base
In guinea pigs, short hair is dominant over long hair. If a short haired DD guinea pig is crossed with a long haired dd guinea pig, what are the possible genotypes and phenotypes of their offspring and the percent chance of each?
Answer:
All are Heterozygous dominant pigs in F1 generation &
In F2 generation 1:2:1 is genotype & 3:1 is phenotype