<span>the elements in groups1a, 2a, 3a have positive charges according to their group numbers</span>
Which of the following measurements is expressed to three significant figures?
C. 5.60 km
Hope this helps!
Answer:
384.2 K
Explanation:
First we convert 27 °C to K:
- 27 °C + 273.16 = 300.16 K
With the absolute temperature we can use <em>Charles' law </em>to solve this problem. This law states that at constant pressure:
Where in this case:
We input the data:
300.16 K * 1600 m³ = T₂ * 1250 m³
And solve for T₂:
T₂ = 384.2 K
Answer:
The average speed must be 30mph so this means the car traveled for 2hrs 60/30
