The speed of the stream's current is 3.6 m/s.
The given parameters:
- distance between the two flags, d = 100 m
- time when it passed the first flag, t₁ = 2:15
- time when it passed the second flag, t₂ = 2:43
<h3>What is speed?</h3>
- The speed of an object describes the rate of change of an object's distance.
The change in the time of motion of the barrel is calculated as follows;
Δt = t₂ - t₁
Δt = 2:43 - 2:15
Δt = 2 min 43 s - 2 min 15 s
Δt = 43 s - 15 s
Δt = 28 s
The speed of the stream's current is calculated as follows;
Thus, the speed of the stream's current is 3.6 m/s.
Learn more about speed here: brainly.com/question/6504879
Answer:
Cells use carbon dioxide and Sun energy to create sugar molecules and oxygen during the photosynthesis process. Such sugar molecules are the basis on which the photosynthetic cell makes more complex molecules, such as glucose.
B burning fossil fuels releases pollutants into the air
Answer and Explanation:
Mitosis is a process in which a single cell distribute into two identical cells. Mitosis include five phases which depend on the physical state of the spindle and chromosomes. Every phase of the mitosis use pipe cleaners to signify the chromosomes. Body cells have about 46 chromosomes. For simplification we use 4 chromosomes. Pipeline activity of the mitosis include different kind of material. In step 1 take two plates and stack them on the top of each other. Plates signify the cell. On the top plate, place 4 pipe cleaner. In step 2 pipe cleaner of the same length and color subsequent to each other. Then twist each pair together. “X” signify the duplicate chromosomes. Two different colors shows that one chromosome came from the mother and one from the father. Through the process of DNA duplication, chromosomes are copied. In the S stage of interphase, DNA copying take place before mitosis. When the chromosomes become visible, prophase might be identified. Then in the center of the plate, line up the chromosomes in a single line, that represent a cell in metaphase. In Anaphase, separate each chromosome by unraveling them. Telophase is the last phase of the mitosis. Cytokinesis begins in this phase. In mitosis, chromosomes goes back to the correct parent so making the data in accurate.
The heart begins its work approximately 21 days after conception. As a single cell pump, it will soon develop into four distinct chambers. It becomes the muscle; all other muscles depend to do their work. Beating on an average day 115,000 times, about 200 gallons of blood is pumped into arteries and veins traveling an unprecedented 12,000 miles a day while overcoming gravity to provide nutrients to every organ, muscle, nerve, and tissue.
It is the force of the hearts contraction that maintains our blood pressure; allowing us to breathe and exchange gases at all levels of respiration, ensuring oxygen is provided to all cells of the body, and waste products are eliminated.
