Answer:
Check below for the explanations required
Explanation:
The following processes/events take place in the cooling of a fluid.
- A reduction in the kinetic energy of the molecules of the fluid
- The molecular speed reduces ( i.e.there will be a reduction in the speed at which the molecules move)
- The cohesive force between the molecules will increase ( i.e the molecules will no longer be drifted apart, they will now move closer to each other
- The temperature of the fluid reduces as it cools down
- There will be an increase in density
Answer:
30 seconds ahead.
Explanation:
Its about 90% of the decisions which are made by someone while driving based on what they see. The vision must be good to make the decision accurately and timely before reacting to the environment.
Line of sight is define as the view which you can see without any obstruction. The best condition of proper line of sight is that someone is needed to see in all direction front, behind, left and right.
To establish the clean line of sight the person should search the traffic environment about 30 seconds ahead.
As you run toward a source of sound, you perceive the frequency of that sound to decrease.
<u>Explanation:</u>
Doppler's effect is a principle used to describe the frequency and the intensity of sound and wavelengths of a source and observer with the two possibilities.
(i) Stationary sound source and moving observer.
(ii) Moving sound source and a stationary observer. It is a relative motion.
Consider when the observer is moving towards a source, the frequency of the sound will be higher and when moving away from the source, the frequency will decrease.
Answer:
hi,human absorb 0oxygen =aborption ,reflection =the light that entered in the water,refraction =the light that pass outside the water
Explanation:
1.97 E-7 m should be right. I took this a while ago.
