Final answer:
The student's questions cover physics topics like the center of mass, kinetic energy, gravitational force, and angular momentum. Specific formulas and physics principles apply to each concept, and additional information is needed to provide accurate solutions to the problems.
Step-by-step explanation:
To assist in answering the student's questions on various physics concepts, we need more specific information like mass distribution, velocities, forces at play, distances, and any other given parameters. However, I can guide you on how to approach these problems:
Center of Mass
- Identify the masses involved and their positions relative to a chosen reference point.
- Use the formula for the center of mass for a system of particles.
Kinetic Energy
- Determine the velocity of the object.
- Calculate the kinetic energy using the formula KE = 0.5 × m × v^2, where m is mass and v is velocity.
Gravitational Force
- Identify the two masses.
- Sketch a free-body diagram to illustrate the forces.
- Apply Newton's law of universal gravitation if relevant.
Angular Momentum
- Find the moment of inertia for the object if rotating.
- Calculate angular momentum using the formula L = I × ω, where I is the moment of inertia and ω is the angular velocity.
Each problem will require specific information to solve, so please provide the details for each part to receive a thorough answer.
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