Answer: A scenario often presented to introductory physics classes is that of a "gravity tunnel" — a tube drilled from one side of the Earth to the other through the planet's center. The answer taught for nearly a half-century for how long a fall through such a hole would take was about 42 minutes and 12 seconds.
Explanation: However, solar and lunar gravity, which also perturb orbiting satellites, would eventually pull you into the tunnel wall anyway [source: Darling ]. Strike a chord: Fun fact: A straight line from any point to any other point through the planet would take the same amount of time to fall through like a tunnel through Earth's center.
Answer:
C
Explanation:
The dependent variable is always the outcome, data, or what is being measured in an experiment.
Answer:
c. Recycling glass is an energy-saving practice.
Explanation:
I think because more energy is saved that way and makes it more effective than the rest of the choices.
