Meaning of geosynchronous satellite

Answers

Answer 1

Answer:

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.

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Could you give me 4 examples of acceleration??

Answers

Certainly.

1). A driver presses the gas and the car speeds up.

2). A driver presses the brake and the car slows down.

3). A driver turns the steering wheel slightly. The car's speed doesn't change
as it goes around the curve.

4). A stone is tossed into the air. Gravity accelerates it from the moment it
leaves the thrower's hand until it hits the ground.

5). A new TV satellite is successfully launched and placed in a perfect circular
orbit around the Earth. The satellite's motion is accelerated forever, 24/7/365 .

"Acceleration" means any change in the speed or direction of motion. Any
object that's not moving at constant speed in a straight line is accelerated.

a person pushing a stroller starts from rest, uniformly accelerating at a rate of 0.500m/s^2. what is the velocity of the stroller after it has traveled 4.75m?

Answers

You're going to use the constant acceleration motion equation for velocity and displacement:
(V)final²=(V)initial²+2a(Δx)

Given:
a=0.500m/s²
Δx=4.75m
(V)intial=0m
(V)final= UNKNOWN

(V)final= 2.179m/s

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:

$V_f^2 = V_i^2 + 2*a*\Delta{x}$

$V_f^2 = 0^2 + 2*0.500*4.75$

$V_f^2 = 0 + 4.75$

$V_f^2 = 4.75$

$V_f = √(4.75)$

$\boxed{\boxed{V_f \approx 2.18\:m/s}}\:\:\:\:\:\:\bf\blue{\checkmark}\bf\green{\checkmark}\bf\red{\checkmark}$

Answer:

The velocity of the stroller is approximately 2.18 m/s

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The substance that gets broken down in a homogeneous mixture is the .

Answers

Solute.

Hopes this helps you all. Good luck with the rest of the test!

A chemical substance, element or compound. Homogeneous mixtures are complex and not easily broken down.

How would you characterize the flame test with respect to its sensitivity

Answers

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:

Final answer:

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.

Explanation:

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.

Learn more about Flame Test Sensitivity here:

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Juan measured the temperature of salt water. He then added 273 to the measured value. Which conversion is Juan most likely doing? degrees Celsius to degrees Fahrenheit degrees Celsius to kelvins kelvins to degrees Celsius degrees Fahrenheit to degrees Celsius

Answers

Answer:

degrees Celsius to kelvins

Explanation:

Which of these statements about resistance is true? Choose the best answer.A. The greater the resistance, the easier it is for electricity to flow
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.

Answers

'C' and 'D' are the same statement, and none of the 3 choices
is good.

Electrical energy is produced in a generator, a solar panel, or
a battery, not in things with resistance.

From the generator or battery, current flows through a circuit of
one or more components.

The greater the resistance of a component, the more energy is
LOST as the current flows through it. The component dissipates
the energy in the form of heat.

This question is not worded in the best possible manner, nor is it specific enough. I also notice that C and D are duplicates.
The answer is B.

A is not true because regarding Ohm's law, $V = IR$ , where V=voltage, I=current, and R=resistance. If we hold Voltage as a constant, (which should be mentioned in the question if it was any good) than we can easily notice that $(V)/(R) = I$ , where I represents current. The larger $I$ is, the easier for electricity to flow. Clearly as resistance increases, current decreases, therefore A is not true.

B is true because of the same reason C (and D) is not true: the greater the resistance, the more power it creates. Again, holding Voltage, or V, as constant, the equation for finding the power (electrical power/energy) of a system is $(V^2)/(R) = P$ . We can notice here again that the greater R is, the less P is. The larger P is, the more energy is dissipated by the circuit. Therefore, since R is getting larger, P is getting smaller, and the amount of heat dissipated becomes less with R's increase.

C and D are not true because of what I explained in B, P gets smaller with R's increase.

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