To solve this kinematics formula use the following equation:
Vf = Vi + at
Vf = 0 + (9.81 m/s^2)(3 seconds)
Vf = 29.43 m/s and or about 29.4 m/s of reported to 3 significant figures.
The two ways that climate change can degrade soil are due to carbon dioxide content in soil and its effect on the ecosystem.
Explanation:
When the concentration of carbon dioxide in the atmosphere increases the organisms such as microbes in the soil break down the organic matter and causes even more increase in the carbon dioxide content. This leads to the release of greenhouse gases which further releases a large amount of methane which is harmful.
Secondly, there should always be a balance between the soil and the climate otherwise it would affect the natural and semi-natural ecosystems. When there are changes in the distribution of water to the plants it affects the hydro-logical cycle. Thus, climate change will naturally lead to changes in the functions of soil and degradation occurs.
Answer:
So that no dust or dirt would interfere with the conductivity
Explanation:
Answer: the percent by mass of potassium nitrate is 13.3%
Explanation:
<u>1) Data:</u>
- Mass of solute, m₁ = 45.0 g
- Volume of solvent, V₂ = 295 ml
- density of water, d₂ = 0.997 g/ml
<u>2) Formulae</u>:
- Percent by mass, % = (mass of solute / mass of solution) × 100
- Density, d = mass / volume
<u>3) Solution</u>:
- d = mass / volume ⇒ m₂ = d₂ × V₂ = 0.997 g/ml × 295 ml = 294. g
- mass of solution = m₁ + m₂ = 45.0g + 294. g = 339. g
- % = (45.0 g / 339. g) × 100 = 13.3 %
- The answer has to be reported with 3 significant figures.