Jacky leaves the office at 4:15 PM. If
she reaches her house at 4:55 PM
when her house is 25 km away from
her office, approximately, how fast did
she drive?
Given:
Jacky leaves the office at 4:15 PM and she reaches her house at 4:55 PM.
Distance between office and her house = 25 km
To find:
The driving speed of Jacky.
Solution:
The difference between 4:15 PM and 4:55 PM is 40 minutes.
60 minute = 1 hour
1 minute = [tex]\dfrac{1}{60}[/tex] hour
40 minute = [tex]\dfrac{40}{60}[/tex] hour
= [tex]\dfrac{2}{3}[/tex] hour
We know that,
[tex]Speed=\dfrac{Distance}{Time}[/tex]
[tex]Speed=\dfrac{25}{\dfrac{2}{3}}[/tex]
[tex]Speed=\dfrac{3\times 25}{2}[/tex]
[tex]Speed=\dfrac{75}{2}[/tex]
[tex]Speed=37.5[/tex]
Therefore, the driving speed of Jacky is 37.5 km per hour.
Based on this diagram, how do the characteristics of Star 1 and Star 2 compare?
Star 1 is cooler and less bright than Star 2.
Star 1 is hotter and brighter than Star 2.
Star 1 is cooler and brighter than Star 2.
Star 1 is hotter and less bright than Star 2.
Answer:
Star 1 is hotter and brighter than Star 2
ANSWER FAST PLEASE!
1. The function of the mitochondria in cell is to...
A) contain all the information the cell needs to function
B) provide movement
C) turn food into an energy the cell can use
D) make energy rich food from sunlight
2. What is the main component of a plant cell wall?
A) galactose
B) glucose
C) cellulose
D) sunrise
3. What are the small structures found inside a cell that have specific functions that halo the cell survive called ?
A) homeostasis
B) organelles
C) tissues
D) organs
Answer:
1. C -make food into energy
2. C - cellulose
3. B - organelles
What is number 30 please
Answer:
The answer is D
Explanation:
hope this helps
The rock cycle includes:
A. Metamorphosis of rock.
B. The process by which rocks are created and broken down.
C. Both A and B are correct
Answer:
C. both a and b are correct
Explanation:
#carry on learning
it is an ecosystem that normally functions without human tending
PLEASE HELP ME:
Drought is a weather condition that may limit the amount of water resources available to an ecosystem. Which of the following may be one result of drought?
A. Fish populations may decline due to lower river levels.
B. Birds may not build nests due to temperature change.
C. Flowering plants may produce more seeds due to lack of water.
D. Predator populations may increase due to increased prey populations.
Answer:
A
Explanation:
Droughts generally lower the amount of water in an ecosystem. This also applies to rivers and other such bodies of water, potentially harming or reducing the number of fish.
10
How much force is needed to accelerate a 5 kg object at a rate of 4m/w?
F
0.28 N
O.
F
G
1.28 N
Η ON
G
J
20 N
0.
о
H
0
J
CLEAR ALL
Answer:
Explanation:How many grams are in 5.4 moles of iron (III) sulfate, Fe2(SO4)3?⇔⇔∉↑·ПНПёПсжЫЫЫЁ
Explanation:
Explanation:How many grams are in 5.4 moles of iron (III) sulfate, Fe2(SO4)3?⇔⇔∉↑·ПНПёПсжЫЫЫЁ
difference between the sea anemone and hydra
Answer:
Hydras live in fresh water environments, while sea anemones live in MARINE environments! Hydra, although primarily sessile (sedentary), may move up to several inches in a day.
What pea color will the offspring have?
A) 2 green, 2 yellow
B)1 green, 3 yellow
C) all yellow
D)all green
Answer:
C.) all yellow
Explanation:
because it's the dominant trait to be inherited
What Gegymnosperm is known as a living fossil
can someone please help me
Answer:
1 and 3
Explanation:
1 is a drug
3 is a formula
OMARK FOR REVIEW
Question 11 of
11. Which foodborne illness is most often caused by incorrectly canned food?
O Listeriosis
O Yersiniosis
O Botulism
O Shigellosis
Answer:
Botulism
Explanation:
A tugboat tows ships out of a harbor. The tugboat starts pulling the ships when they are stopped at a dock.
Masses of ships
Name Mass (kg)
Eden 3,239
Skipjack 2,273
Standard 2,020
Thunderer 2,526
Viceroy 1,859
The tugboat tows with the same force no matter the size of the ship. Order the names of the ships to show the size of the acceleration each ship will have as it starts to move.
Answer:
In order of decreasing acceleration experienced by each ship, the names of the ships are as follows:
Viceroy
Standard
Skipjack
Thunderer
Eden
Explanation:
A force is a push or pull upon an object resulting from the object's interaction with another object.
According to Newton's second law of motion, the acceleration of an object is directly proportional to the resultant (or net) force and inversely proportional to the mass of the object and the acceleration occurs in the same direction as the force.
Mathematically, a = F/m
From the given question, the tugboat tows the ships with the same force no matter the size of the ship, therefore, force is constant. The acceleration each ship will have as it starts to move assuming force = 1 N, is given below:
Eden; mass = 3,239;
acceleration = 1/3239 = 3.09 * 10⁻⁴ m/s²
Skipjack 2,273
acceleration = 1/2273 = 4.40 * 10⁻⁴ m/s²
Standard 2,020
acceleration = 1/2020 = 4.95 * 10⁻⁴ m/s²
Thunderer 2,526
acceleration = 1/526 = 3.96 * 10⁻⁴ m/s²
Viceroy 1,859
acceleration = 1/1859 = 5.38 * 10⁻⁴ m/s²
Thus, in order of decreasing acceleration experienced by each ship, the names of the ships are as follows:
Viceroy
Standard
Skipjack
Thunderer
Eden
1. The definition of evolution is
a. The process of change over time in populations
b. The process of change over time in individual organisms
C. The process in which organisms share habitats
d. The process in which organisms reproduce
Answer:
B
Explanation:
Which best desctibes the fossil record?
Answer:
The perserved remains of an organism.
Based on the latitude, which hemisphere is the United States in?
Answer:
Northern
Explanation:
Answer: should be northern ^^
A lion attacking and eating an antelope is an example of:
- mutualism
-predation
-parasitism
-competition
Describe how the functions of the xylem and phloem specifically relate to photosynthesis
Answer:
El xilema es una estructura que transporta, a través de la planta, agua y sales minerales disueltas. El floema transporta bebes elaborados por las células y por fotosíntesis. ... Las células individuales del floema están conectadas entre sí por los extremos, como si fueran secciones de un tubo.
easiest way to memorize the structures of viruses and bacteria
Answer:
I recommend trying to photo memory it, if not repeat it in your head to the point where its the only thing you're thinking about.
Explanation:
It works for me :))
Answer: Quizlet
Explanation: Helps me study when taking tests, maybe works for you too.
during the nitrogen cycle?
ammonia is turned into sugar?
atmospheric nitrogen is converted to fixed nitrogen?
nitrogen is converted to oxygen and sugar?
oxygen and sugar are converted to nitrogen?
Answer:
none of the above
Explanation:
Explain at least three ways in which a mutation in an individual's DNA could occur, and describe at least 2 effects a mutation could have on an individual's traits.
Many proteins are regulated by the binding of GTP or GDP. Which form is the active state of the protein
Answer:
GTP-bound form
Explanation:
Such a receptor may be associated with the GDP-regulated G-stimulant protein system. When the neurotransmitter binds to the receptor, the protein G-GDP complex is activated by separating its β subunit. When the ligand "sticks" to it, it releases GDP and allows GTP to bind. This form of the G protein that binds GTP, is the activated ("on") form of it. When it is "on" it releases signals into the cell. After a short period (seconds or less) the G protein hydrolyzes the GTP to GDP and itself "turns off".
Two Aa parents have children with Aa genotype and one child with the aa genotype. If these parents have a fourth child, what is the probability that the fourth child will have the AA genotype
Answer:
25%
it is like flipping a coin
regardless of how many times it comes out heads
tails is still 50%
the punnett square ouitside is Aa on top and bottom
inside is
AA Aa
Aa aa
Explanation:
give two reasons why it is important to conserve south Africa's plants and animals
Answer:
it creates opportunities and benefits for local communitys and it can maintain the health if an ecosystem. I think those are the two I may be wrong sorry if I am
how does gene regulation relate to the continuity of life
Prompt: You are a carbon atom and you have just been exhaled out of a deer. Describethe journey that you have been on or describe your new adventures. You should include
at least 10 things that you have learned in Unit 4 (cellular respiration, photosynthesis,
carbon cycle, etc).
Answer:
respiration" (and any subsequent words) was ignored because we limit queries to 32 words.
The elbow is __ to the index finger.
The stomach is __ to the neck.
The brain is __ to the spinal cord.
The lungs are __ to the heart.
The shoulder is __ to the esophagus.
The toes are __ to the ankles.
The trachea is __ to the clavicle (collarbone).
The spine is __ to the liver.
Answer:
what is the question ?
Explanation:
A certain virus attacks the mitochondria in cells. What would to the cell if all of it's mitochondria were destroyed
Answer:
respiration can no longer occur meaning the cell will die as it needs oxygen?
Answer:
Energy would not be produced and the cell will break down.
Explanation:
In order to determine the expected average offspring length, what do you multiply with your heritability
Complete question:
In a population of toads, the average body length is 30mm. Body length is variable and the narrow sense heritability for body length is 0.1 for this population. You cross a male of 20mm with a female of 22mm. In order to determine the expected average offspring length, what do you multiply with your heritability?
30mm 9mm 0.1 8mm -9mm -0,5Answer:
The correct option is -9mm
In order to know the expected average offspring length, OABL, we need to multiply the selection differential, SD ( -9mm) with narrow-sense heritability, h² (0.1).
Explanation:
Available data:
the average body length, ABL, is 30mmthe narrow-sense heritability, h², for body length is 0.1male of 20mmfemale of 22mmTo answer this question, we need to remember how can we calculate the selection differential and the heritability in the narrow sense.
We can get the selection differential, SD, by getting the difference between the mean value of a population length, ABL, and the mean value of the parents of the next generation, PABL. So, in this example the selection differential is:SD = (20mm + 22mm)/2 - 30mm
SD = 21 mm - 30mm
SD = - 9mm
The heritability in the narrow sense, h², for body length in the population ish² = body lengths of the offspring average/selection differential
But we already know the value of h². And we want to know the body length of the offspring. So we just need to clear the following equation.
OABL = ABDL + h² ( PABL - ABL)
where,
offspring average body lengths = OABLpopulation average body length = ABL = 30mmparents average body length = PABL = 22mmSelection diferential = SD = -9mmnarrow sense heritability = h² = 0.1OABL = ABDL + h² ( PABL - ABL)
OABL = ABDL + h² ( SD)
OABL = 30mm + 0.1 ( -9mm)
OABL = 30mm + (-0.9 mm)
OABL = 21 mm
In order to know the expected average offspring length, OABL, we need to multiply the selection differential, SD ( -9mm) with narrow-sense heritability, h² (0.1).