Answer:
We know that kinetic energy is one of the forms of internal energy, so the release of heat from an object causes a decrease in the average kinetic energy of its particles.
For this case, the first thing you should do is observe the level of the liquid in the graduated cylinder, where it is located.
This will result in its volume.
We have then that the volume is given by:
Answer:
the volume of liquid in the graduated cylinder is:
Answer:
electrons should be added to one of these spheres to make it electrically neutral.
Explanation:
Total charge on each sphere = +3.0 μC =
In order to neutralize the positive charge equal magnitude of negative charge is to be added.
Total charge electrons, Q= -3.0 μC =
Number of electrons = n
Charge on a single electron, e =
Q = n × e
electrons should be added to one of these spheres to make it electrically neutral.
Answer:
option d= 2
pH of gastric juice in stomach is vary from 1.5 - 3.5. So it could be 2.
Explanation:
Gastric juice present in the stomach is acidic in nature. It is composed of mainly sodium chloride, hydrochloric acid and potassium chloride. It is produce by the cells present in stomach lining. It activate the digestive enzyme and play important role in the digestion of protein . These enzymes break the chain of amino acids. Its acidic pH is not harmful for the stomach because lining cells of stomach also produce mucus that act as a barrier.
Chemical composition of gastric juice and their functions:
The gastric juice is a mixture of several chemicals including:
water:
water can not effect the stomach pH. it provide liquidity to mix the food, acids and enzymes. some enzymes also require water to perform the function.
Mucous:
It is produce in stomach. mouth and esophagus. It passes the food through gastrointestinal track in a protected way and also provide the protection to stomach from acid.
Hydrochloric Acid:
HCl is secreted by parietal cells of stomach. it kills the pathogens and bacteria in food and also convert the pepsinogen into pepsin. pepsin breaks the secondary and tertiary proteins and help in digestion.
Pepsinogen:
It also help to digest the protein.
Hormones and Electrolytes:
They help in food digestion and nutrient absorption.
Gastric Lipase:
t help to breake the fats of short and medium chain.
Amylase:
It is found in saliva and break down the carbohydrates.
Answer:
D. Provides higher resolution images
Explanation:
The advantages gained by the use of digital data transmission instead of analog transmission are;
1) Noise do not damage digital signal transmission but they impact on analog signals. Digital signals are therefore more secure than analog signals
2) The bandwidth required for digital signal transmission is much less than the bandwidth required for analog
3) Digital signal allow data transmission to very long distance
4) The rate of transmission with digital signals is higher with digital signals
5) Digital signals allow easy and cost effective methods by which they are replicated
The resolution of an image is a measure of the amount of pixels displayed per inch of the image, such that a high resolution image has more pixel per inch of the image. It is therefore a factor determined at the source of the image based on how much detail is required in an image before transmission