Answer:
A. It makes astronauts weightless.
Explanation:
Gravity does not make astronauts feel weightless. Astronauts are weightless because they are orbiting at the same rate as their shuttle.
Although the force of gravity weakens as one moves away from the earth surface, it does not mean that this force is absent in orbit
- Gravitational force has a constant acceleration value near the earth surface which is commonly known to be 9.8m/s².
- It is a force of attraction tending to hold and bind bodies together so far they have mass.
- This force keeps every thing from escaping space-ward from the earth surface.
You can deal with this question using the collision theory, which states that the chemical reactions occur when particles collide with enough energy to reach the Activation Energy.
The velocity of the particles is related with the temperature. At higher temperatures, higher velocities and higher frequency of collisions.
Also, at higher concentration (more particles is a same volume) the number of collisions will increase.
Then, hIgher concentration and higher temperature will increase the frequency of the molecular collisions..
Then, the answer is the proposal #1: "<span>increasing the frequency of molecular collisions"</span>
Answer:
I THINK it's A but I'm not completely sure
