First of all, it depends on how far away the spaceship is from both objects, and the SPEED of the ship. if it is closer to the moon, the gravity might be equal for each of the objects.
Answer:
When you run your heart rate and breathing rate is much higher when walking which requires more energy. Running is also faster than walking which means that the muscles need to exert more force per step to maintain the higher speed.
Explanation:
The answer here could be pressure vs. temperature.
Think of PV=nRT. T is related to P the same way as n is (assuming all other variables are kept constant).
Answer:
A. It uses less energy to make something from recycled materials than from new materials.
Explanation:
I think it is this one because it is the only one that is not harmful to the environment. Also, I took the test a few minutes ago.