1- You should always have a question for your experiment.
2- You need to conduct background research. It helps to write down your sources so you can cite your references.
3- Propose a hypothesis (educated guess on what you believe the outcome of the experiment will be)
4- Design and perform an experiment to test your hypothesis (include independent and dependent variable)
5- Record observations and analyze what the data means.
6- Conclude whether you need to accept or reject your hypothesis, which accepting means your hypothesis was right and rejected is if it was wrong.
Answer:
Explanation:
a law in physics: the ratio of the sines of the angles of incidence and refraction is constant for all incidences in any given pair of media for electromagnetic waves of a definite frequencya law in physics: the ratio of the sines of the angles of incidence and refraction is constant for all incidences in any given pair of media for electromagnetic waves of a definite frequency
The affinity of hemoglobin for oxygen is <u>increased</u> as the partial pressure of oxygen is raised.
Hemoglobin is the most vital constituent of red blood cells.
It is a kind of protein found in red blood cells that transfers oxygen to all parts of your body.
Hemoglobin is made up of proteins called 'heme' to which oxygen molecules become attached and travel throughout the body.
The blood carrying oxygen is called oxygenated blood and when it reaches the lungs, oxygen molecules detach and brings carbon dioxide along to remove it from the body through respiration.
If you need to learn more about hemoglobin click here:
brainly.com/question/10122738
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Answer:
Here not any option is matching but only (A) option is near to our answer.
The frictional force is 126.046 N
Explanation:
Given:
Mass of bullet
kg
Thickness of sand bag
m
Initial bullet velocity ![v_{i} = 55 \frac{m}{s}](https://tex.z-dn.net/?f=v_%7Bi%7D%20%3D%2055%20%5Cfrac%7Bm%7D%7Bs%7D)
Final bullet velocity ![v_{f} = 18 \frac{m}{s}](https://tex.z-dn.net/?f=v_%7Bf%7D%20%3D%2018%20%5Cfrac%7Bm%7D%7Bs%7D)
According to the work energy theorem,
Work done by friction force is equal to change in kinetic energy.
![\frac{1}{2} m v_{i} ^{2} - \frac{1}{2} m v_{f } ^{2} = f_{s} d](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20m%20v_%7Bi%7D%20%5E%7B2%7D%20%20%20-%20%5Cfrac%7B1%7D%7B2%7D%20m%20v_%7Bf%20%7D%20%5E%7B2%7D%20%20%3D%20f_%7Bs%7D%20d)
Here we have to find friction force ![f_{s}](https://tex.z-dn.net/?f=f_%7Bs%7D)
![\frac{1}{2} \times 0.028 (3025-324) = f_{s} \times 0.30](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20%20%5Ctimes%200.028%20%283025-324%29%20%3D%20f_%7Bs%7D%20%5Ctimes%200.30)
N
Here not any option is matching but only (A) option is near to our answer.
Therefore, the frictional force is 126.046 N
Answer:
0 m/s cause they crashed so they can't move