A tailwind will boost up the speed of the runner while a headwind will slow the runner down.
A tailwind is a wind that is blowing along the direction of the runner approaching. Whereas a headwind is the wind that blows opposite to the runners approach.
This happens because the body is actually running flat to the wind which gives a resistance to the wind flow. So the wind actually pushes the body forward or backward. If the wind is coming from back, the wind pushes the athlete towards front, increasing his speed by a few miles per hour. When the wind is coming from front, the wind is actually pushing the athlete backwards, which decreases the speed.
The wind also makes it difficult for the athlete to breathe, thereby decreasing the speed to a certain extent in general.
Answer:
I would set up the wind machine so it was blowing against people running. I would have it blow at different speeds in different trials. I would use a stopwatch to record the time of each trial for the runners. I would use the computer to help analyze the data from the trials.
Explanation:
It was the answer provided.
Deforestation increases the amount of runoff because plants are not present to absorb the water.
Increased surface runoff has increased water pollutants
*Light always travels at the same speed.
*Light cannot travel through liquids.
* all of these
Answer:
Light energy travels as waves.
Explanation:
Because I had the same question and what i choose was wrong, so heres the correct answer
Answer:Light always travels at the same speed.
Explanation: Light is fast.
Answer:
cell membrane
Explanation:
The correct answer is option C
Unipotent stem cells are those stem cells that can form cells of one lineage only. An adult would be having the maximum number of unipotent stem cell as it has gone through the process of cell differentiation and the cell have been differentiated into different kinds of cells. For example: skin stem cells
The stem cells of embryo are mainly pleuripotent and multipotent that can form cells of different lineages.
Ans.
The membrane proteins that pump sodium ions out of the cell from inside and potassium ions inside the cells are called as sodium-potassium pumps or sodium-potassium ATPases.
These proteins perform active transport by using energy from ATP hydrolysis and transport two potassium ions inside the cells, along with transport of three sodium ions outside the cells, against the concentration gradient.
Thus, the correct answer to complete the sentence is sodium.
Answer: result for What is cell made up of what is cell structural organisation of a cell
Cell Structure. The cell structure comprises individual components with specific functions essential to carry out life's processes. These components include- cell wall, cell membrane, cytoplasm, nucleus, and cell organelles.
Explanation: hope this helps