A fish tank in a pet store was less than half full ofwater when a worker turned on a hose to fill the
tank at a constant rate. After the hose was on for
5 minutes, the tank was exactly half full. After
the hose was on for 30 minutes, the tank was
three-quarters full. How many minutes did it take
after the hose was turned on for the tank to be
completely filled with water?

Answers

Answer 1

Answer: 100 minutes

During 25 minutes, it got filled 1/4 more (3/4 - 1/2)

So it would take 100 minutes to completely fill it

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Which of the following characteristics is a result of ooad principles?.

Answers

OOAD Principles include the following;

Major Elements:

Abstraction

Encapsulation

Modularity

Hierarchy

Minor Elements:

Typing

Concurrency

Persistence

What are OOAD Principles?

OOAD principle refers to Object-oriented Analysis and Design that operate on the open-closed principle. It is based on the objects model.

The major elements are the factors which if not found within the model cannot be classified as Object-oriented. The minor elements are important but not crucial aspects of the design.

Since the options are not provided, look through the provided elements to identify the OOAD principles.

Learn more about the OOAD Principles here:

brainly.com/question/25105772

A machinist turns the power on to a grinding wheel, at rest, at time t = 0 s. The wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 58 rad/s. The wheel is run at that angular velocity for 30 s and then power is shut off. The wheel slows down uniformly at 1.4 rad/s2 until the wheel stops. In this situation, the total number of revolutions made by the wheel is closest to:

Answers

The wheel accelerates uniformly for 10s and reaches the operating angular velocity of 58 rad/s. The wheel is run at that angular velocity for 21s and then power is shut off. The wheel slows down at 2.4rad/s^2 until it stops.

Which of the following investigators was/were responsible for the following discovery? in dna from any species, the amount of adenine equals the amount of thymine, and the amount of guanine equals the amount of cytosine.

Answers

A) Frederick Griffith

B) Alfred Hershey and Martha Chase

C) Oswald Avery, Maclyn McCarty, and Colin MacLeod

Omg im so stupid someone sole this asap please!!!!!!!!
6/2(1+2)

Answers

Answer:

Explanation:

6/2(1+2)

if 6/2 is dividing then:

(1+2=3)

6/2=3

3(3)

3x3=9

Answer:

Yeah the answer is 9. :l But don't feel bad. Everyone makes mistakes. :D

Explanation:

Compared to micellular compound 1, compound 2 is structurally more rigid as a result of what type of interaction?.

Answers

Compound 2 is structurally more rigid as a result of intermolecular covalent bonds, disulfide bonds. These bonds occur between polypeptide chains.

Disulfide bonds are covalent bonds generated by the oxidation of a pair of cysteine amino acids.

Intermolecular disulfide bonds can bind polypeptide chains, thereby stabilizing them.

Intramolecular disulfide bonds can stabilize tertiary molecular structures, while intermolecular disulfide bonds can stabilize quarternary molecular structures.

Learn more about disulfide bonds here:

brainly.com/question/5298628

During the final stages of human gestation, receptors for the hormone oxytocin increase on the smooth muscle cells of the uterus. The release of the oxytocin during labor stimulates the smooth muscle tissue in the wall of the uterus. The vigorous contraction of the uterine smooth muscle helps push the baby through the birth canal so that delivery can occur. This process involves the interaction of which organ system?.

Answers

Answer:

The process of child birth involves the interaction of endocrine, muscular, and reproductive organ systems.

The endocrine is responsible for the production of chemical messengers in the body. These chemical messengers are called hormones. They are produced in endocrine glands and are transported to their target organs in the blood stream.

The muscular system controls the contraction and relaxation of all the muscles in the body.

Explanation:

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To compare the average amount of time that canadians and americans spend commuting, a researcher collects a sample of canadians and americans. The canadians spend an average of hours a week commuting, with a standard deviation hours. The mean and standard deviation for the sample of americans is hours and hours, respectively. The standard error of the difference of sample means is:.