Answer:
The answer to your question is 720.5°K
Explanation:
Data
Volume 1 = 285 ml
Temperature 1 = 355 °K
Pressure 1 = 1.88 atm
Volume 2 = 435 ml
Temperature 2 = ?
Pressure 2 = 2.5 atm
Formula
To solve this problem use the combined gas law
P1V1 / T1 = P2V2 / T2
- Solve for T2
T2 = T1P2V2 / P1V1
- Substitution
T2 = (355)(2.5)(435) / (1.88)(285)
- Simplification
T2 = 386062.5 / 535.8
- Result
T2 = 720.53°K
Conclusion
The gas must be heated to 720.5°K
Answer:
Option A. 40 mi/h
Explanation:
To obtain the average speed of the vehicle, we'll begin by calculating the distance travelled by the vehicle in each case. This is illustrated below:
Case 1:
Speed = 30 mi/h
Time = 2 h
Distance =...?
Speed = Distance /Time
30 = Distance /2
Cross multiply
Distance = 30 × 2
Distance = 60 mi
Case 2:
Speed = 60 mi/h
Time = 1 h
Distance =...?
Speed = Distance /Time
60 = Distance /1
Cross multiply
Distance = 60 × 1
Distance = 60 mi
Finally, we shall determine the average speed of the vehicle as follow:
Total distance travelled = 60 + 60
Total distance travelled = 120 mi
Total time = 2 + 1
Total time = 3 h
Average speed =..?
Average speed = Total Distance travelled /Total time
Average speed = 120/3
Average speed = 40 mi/h
Therefore, the average speed of the vehicle is 40 mi/h
Answer:
Time period of second satellite will be 50.904 hour
Explanation:
We have given time period of first satellite 
Orbital radius of first satellite 
Orbital radius of second satellite 
We have to find the time period of second satellite.
Time period of satellite is equal to 
From the relation we can see that 
Time period of second satellite will be 50.904 hour
WHICH wax he tries out is the independent variable.
How clean his car stays is the dependent variable.
Well the main reason why people invented and started using electricity from solar power is because of no emissions of carbon dioxide, no water and air pollution and it is renewable. So, B,C,and D cannot be the answer.
The answer A is indeed correct. At the moment solar panels are still expensive for the power they bring. Engineers hope to bring cost of panels lower which would make solar power less cheap than oil extracting (of course, for same amount of power). <span />
