The day's length is not a settled unit of time.
The earth itself is jiggling around space, going on an amazingly slight bended way and the unrest is dialing down record of tidal movement and the moon moving possibly away.
The day's length changes amid the time and in addition about predictably or something to that effect, and extra hop second is added to the timetable.
The second is portrayed using different unrests of the cesium 133 particle at 0 Kelvin in light of the fact that isolated from quantum mechanics, it isn't at risk to coincidental segments.
All of the factors listed above, except food can be classified as abiotic factors. Food (the presence of plants,animals and other organisms in the ecosystem and their complex relationships) is the biotic component of the ecosystem.
These factors affect the distribution, survival and genetic characteristics of the populations. The lack of water, shelter and space can prevent certain species from living in the ecosystem or cause strong pressure of the natural selection and shape the genetic structure of the population.
Complex biotic relationship also influence behavior, presence and genetic structure of the populations.
Answer:
- 1,882.8 joules
- 83.652 calories
Explanation:
Given:
Amount in calories = 450 calories
Amount in joules = 3.5 × 100 joules
Find:
- Change in joules
- Change in calories
Computation:
We know that,
1 calories = 4.184 joules
So,
Amount in calories = 450 calories
= 450 × 4.184
= 1,882.8 joules
Amount in joules = 3.5 × 100 joules
= [3.5 × 100] / 4.184
= 83.652 calories
Answer:
2.65 atm.
Explanation:
- We can use the general law of ideal gas: <em>PV = nRT.</em>
where, P is the pressure of the gas in atm.
V is the volume of the gas in L.
n is the no. of moles of the gas in mol.
R is the general gas constant,
T is the temperature of the gas in K.
- If n and V are constant, and have different values of P and T:
<em>(P₁T₂) = (P₂T₁).</em>
P₁ = 3.0 atm, T₁ = 30°C + 273 = 303 K,
P₂ = ??? atm, T₂ = -5°C + 273 = 268 K.
∴ P₂ = (P₁T₂)/(T₁) = (3.0 atm)(268 K)/(303 K) = 2.65 atm.