Meaning of geosynchronous satellite:
A satellite above Earth placed in a geosynchronous circular orbit, inclined at an angle with the equatorial plane of Earth and orbiting at an orbital period equal to that of earth’s rotational period is termed as a geosynchronous satellite. Geosynchronous orbit is a High Earth orbit at a distance of 42,164 kilometres from the centre of earth such that the gravitational pull from earth is fair enough for the object in orbital motion to match with the speed of earth’s rotational period (24 hrs)
As an observer from ground, a geosynchronous satellite appears to be at a stationary point, at any part of the day; since it's velocity synchronizes with the angular velocity that of earth. A geosynchronous satellite orbiting in an equatorial plane without any inclinations is termed as a geostationary satellite.
Hello!
A person pushing a stroller start from rest uniformly accelerating at a rate of 0.500 m/s². What is the velocity of the stroller after it traveled 4.75 m ?
We have the following data:
a (acceleration) = 0.500 m/s²
Vf (final velocity) = ? (in m/s)
Vi (initial velocity) = 0 m/s
Δx (displacement) = 4.75 m
Solving:
Let's apply the Torricelli Equation, to find the velocity of the stroller, let's see:
Answer:
The velocity of the stroller is approximately 2.18 m/s
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Solute.
Hopes this helps you all. Good luck with the rest of the test!
Answer:
Flame test is the procedure to find out the metal ions in the ionic compounds. By observing the color of flame we find out the presence of certain metallic ion. For example if we take the test of copper halide, the flame will become of the bluish green color due to the copper ion. You can perform the test with the common salt. Upon putting it on the flame, the color of flame will become yellow due to the presence of sodium ion. Similarly aluminium shows blue and calcium brick red etc.
Explanation:
The flame test, used in chemistry to identify certain substances through the color of their flame, has limited sensitivity, as some elements produce similar flame colors and multiple elements in a sample can complicate interpretation. Still, it remains a valuable tool in qualitative analysis. Other assessments, such as the NFPA 704 Hazard Identification System, can help understand the reactiveness and flammability of substances.
Characterizing the flame test with respect to its sensitivity involves understanding the minimal amount of a compound that the test can detect. Just like our senses have an absolute threshold for detection, so does the flame test. It can identify the presence of various elements in a compound based on the color of the flame. For example, sodium and its compounds impart a bright yellow color to a flame whereas lithium creates a bright, crimson color.
Despite its usefulness, the flame test may not be the most sensitive method for substance identification. Some elements may produce similar flame colors, making it difficult to distinguish between them. Moreover, the presence of multiple elements in a sample can also complicate the interpretation of flame test results. Therefore, while the flame test is a valuable tool in qualitative analysis, its sensitivity is somewhat limited.
According to the National Fire Protection Agency (NFPA) 704 Hazard Identification System, each substance has its own degree of hazard that ranges from 0 to 4. This information is critical in understanding the reactivity and flammability of substances, and is another aspect to consider when characterizing the sensitivity of the flame test.
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Answer:
degrees Celsius to kelvins
Explanation:
B. The greater the resistance, the less thermal energy is produce.
C. The greater the resistance, the more electrical energy is produced.
D. The greater the resistance, the more electrical energy is produced.