Pregunta
Select all that is true about the Earth’s gravitational acceleration:
Is about
Depends on the mass
Always points downward
Is about
Ask by Lawson Reed. in the United States
Jan 10,2025
Solución de inteligencia artificial de Upstudy
Respuesta verificada por el tutor
Responder
The true statements are:
- Always points downward
- Is about
Solución
Let’s evaluate each statement about Earth’s gravitational acceleration:
-
Is about
: - This statement is false. The average gravitational acceleration on the surface of the Earth is approximately
.
- This statement is false. The average gravitational acceleration on the surface of the Earth is approximately
-
Depends on the mass:
- This statement is false. The gravitational acceleration experienced by an object near the Earth’s surface is approximately constant and does not depend on the mass of the object. It is a property of the Earth itself.
-
Always points downward:
- This statement is true. Gravitational acceleration always points toward the center of the Earth, which we refer to as “downward” from the perspective of someone standing on the surface.
-
Is about
: - This statement is true. While the precise value is
, it is often approximated as for simplicity in calculations.
- This statement is true. While the precise value is
In summary, the true statements are:
-
Always points downward -
Is about
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Bonus Knowledge
Gravity has intrigued humanity for centuries, and Isaac Newton is often credited with formulating the law of universal gravitation in the 17th century. His work laid the foundation for understanding how objects interact with one another due to their mass, leading to a deeper insight into celestial mechanics and the motion of planets and moons.
In practical terms, gravitational acceleration is crucial for various applications, from designing roller coasters to ensuring satellites maintain their orbits. For instance, engineers must account for gravitational forces when constructing buildings to withstand potential earthquakes, and space agencies design spacecraft trajectories based on gravitational pull to optimize fuel efficiency during launches and landings.

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