By definition,
speed = dstance/time.
Note that
1 mile = 1.609 km
Therefore,
1 mile = 1.609 mk
11 minutes = 11/60 h = 0.1833 h
speed = (1.609 km)/(0.1833 h) = 8.78 km/h
Answer: 8.8 km/h (nearest tenth)
Answer:
The correct answer would be B, electrons energy levels related to their orbits.
Explanation:
I hope this helps you!
Answer:
20.53 g.
Explanation:
- Knowing that every 15.0 g of pure calcium fluoride contains 7.70 g of calcium.
<u>Using cross multiplication:</u>
15.0 g of pure calcium fluoride contains → 7.70 g of calcium.
40.0 g of pure calcium fluoride contains → ??? g of calcium.
<em>∴ The mass of Ca in 40.0 g of calcium fluoride</em> = (7.70 g)(40.0 g)/(15.0 g) = <em>20.53 g.</em>
In general, roots absorb phosphorus in the form of orthophosphate, but can also absorb certain forms of organic phosphorus. Phosphorus moves to the root surface through diffusion.
Answer:
The volume of the balloon would be 374 L.
Explanation:
Initially, He occuplies a volume of 17.0 L (V₁) at a pressure of 22.0 atm (P₁). If pressure decreases to 1.00 atm (P₂), volume is expected to increase. Assuming ideal behavior of the gas and constant temperature, we can calculate the final volume (V₂) using Boyle's Law.
