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Describe the steps to calculate gravitational force between two objects.

  1. Identify the masses (m1m_1 and m2m_2) of the two objects. 2. Determine the distance (r) between their centers. 3. Use the formula F=Gfracm1m2r2F = G frac{m_1 m_2}{r^2} to calculate the force, where G is the gravitational constant.
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Describe the steps to calculate gravitational force between two objects.

  1. Identify the masses (m1m_1 and m2m_2) of the two objects. 2. Determine the distance (r) between their centers. 3. Use the formula F=Gfracm1m2r2F = G frac{m_1 m_2}{r^2} to calculate the force, where G is the gravitational constant.

Explain how to find the acceleration due to gravity (g) near Earth's surface.

  1. Use the formula g=GfracMR2g = G frac{M}{R^2}, where G is the gravitational constant, M is the mass of the Earth, and R is the radius of the Earth. 2. Plug in the values to calculate g.

Outline the motion of an object falling from a great height under variable gravitational force.

  1. Object accelerates due to gravity. 2. Velocity and acceleration increase. 3. Air resistance leads to terminal velocity. 4. Velocity becomes constant; acceleration becomes zero. 5. As it approaches the surface, gravity may slightly decrease, impacting the surface.

What are the key differences between gravitational force near Earth's surface and far from Earth's surface?

Near Earth's Surface: g=GfracMR2g = G frac{M}{R^2} (R is Earth's radius, g is approximately constant) | Far from Earth's Surface: g=GfracMr2g = G frac{M}{r^2} (r is distance from Earth's center, g varies with distance)

What is the effect of increasing the distance between two objects on the gravitational force?

Increasing the distance between two objects decreases the gravitational force between them, following an inverse square relationship.

What is the effect of increasing the mass of one object on the gravitational force between it and another object?

Increasing the mass of one object increases the gravitational force between it and another object proportionally.

What happens when an object falls from a great height considering air resistance?

The object accelerates until air resistance equals gravitational force, resulting in terminal velocity.