The orbital angular momentum of the Earth is equal to the product of the mass of the Earth (6.0x 10^24 kg) and its orbital velocity (29.7 km/s) multiplied by its distance from the Sun (1.5x 10^8 km), which results in a magnitude of 3.6x 10^40 kg m^2/s.
The spinning angular momentum of the Earth is equal to the product of its mass (6.0x 10^24 kg) and its angular velocity (7.3x 10^-5 radians/s) multiplied by the square of its radius (6.4x 10^6 m), which results in a magnitude of 3.8x 10^37 kg m^2/s.
a) The magnitude of Earth's orbital angular momentum with respect to the Sun is [ Select ] kg m^2/s. b) The magnitude of its spinning angular momentum is [Select ] kg m^2/s.
To calculate the magnitude of Earth's orbital angular momentum with respect to the Sun, we need to use the formula:
Angular Momentum = Moment of Inertia * Angular Velocity
For Earth's orbital angular momentum, the moment of inertia can be calculated using the formula for a sphere:
Moment of Inertia = (2/5) * mass * radius^2
Substituting the given values:
Moment of Inertia = (2/5) * 6.0 x 10^24 kg * (6.4 x 10^6 m)^2
Next, we need to calculate the angular velocity. The time taken for Earth to complete one revolution around the Sun is known as the orbital period. The orbital period of Earth is approximately 365.25 days or 31,557,600 seconds.
Angular Velocity = 2π / Orbital Period
Substituting the values:
Angular Velocity = 2π / 31,557,600 s
Now, we can calculate the orbital angular momentum:
Orbital Angular Momentum = Moment of Inertia * Angular Velocity
For the spinning angular momentum, we can use the same formula:
Spinning Angular Momentum = Moment of Inertia * Angular Velocity
However, the moment of inertia for spinning angular momentum is different. It depends on the mass distribution of Earth and its axis of rotation. Since Earth is considered a sphere, the moment of inertia for spinning angular momentum can be calculated using the formula mentioned earlier.
Substituting the given values:
Moment of Inertia = (2/5) * 6.0 x 10^24 kg * (6.4 x 10^6 m)^2
Finally, we can calculate the spinning angular momentum:
Spinning Angular Momentum = Moment of Inertia * Angular Velocity
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The correct answer is - The tilt of the Earth exposes different ares to direct sunlight as the Earth orbits the Sun.
One of the biggest reasons why there's seasons on the Earth, is the Earth's tilt. In one part of the year, the Northern Hemisphere is the one that is more exposed to the Sun, and that is because of the tilting of the Earth, while the South Hemisphere in the same time is tilted away from the Sun. Because of this, the Northern Hemisphere experiences warmer weather, and it is summer, while in the Southern Hemisphere that has much less sunlight is much colder, and it is winter. This also goes the other way around in the other part of the year, where the Southern Hemisphere is tilted towards the Sun, while the Northern Hemisphere is tilted away from it.
b. false
b. temperature fluctuations
c. flooding
d. chemical pollution
A change to waterways which is only the result of human activity is: D. chemical pollution.
Chemical pollution can be defined as the contamination of an environment or waterway, especially through an emission of poisonous, hazardous, and toxic chemical compounds (substances) by humans and various industries.
According to the Environmental Protection Agency (EPA), chemical pollution is a change to waterways which is only caused as a result of human activity.
Read more on chemical pollution here: brainly.com/question/6361619
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