Answer : The time required is, 16.1 minutes.
Explanation :
First we have to calculate the amount of heat required to increase the temperature is:
![Q=mC\Delta T\\\\Q=\rho VC\Delta T](https://tex.z-dn.net/?f=Q%3DmC%5CDelta%20T%5C%5C%5C%5CQ%3D%5Crho%20VC%5CDelta%20T)
![(m=\rho V)](https://tex.z-dn.net/?f=%28m%3D%5Crho%20V%29)
where,
Q = amount of heat required = ?
m = mass
= density of air = ![1.20kg/m^3](https://tex.z-dn.net/?f=1.20kg%2Fm%5E3)
V = volume of air
C = specific heat of air = ![1006J/kg^oC](https://tex.z-dn.net/?f=1006J%2Fkg%5EoC)
= change in temperature = ![10.0^oC](https://tex.z-dn.net/?f=10.0%5EoC)
Now put all the given values in above formula, we get:
![Q=\rho VC\Delta T](https://tex.z-dn.net/?f=Q%3D%5Crho%20VC%5CDelta%20T)
![Q=(1.20kg/m^3)\times (3.00m\times 5.00m\times 8.00m)\times (1006J/kg^oC)\times (10.0^oC)](https://tex.z-dn.net/?f=Q%3D%281.20kg%2Fm%5E3%29%5Ctimes%20%283.00m%5Ctimes%205.00m%5Ctimes%208.00m%29%5Ctimes%20%281006J%2Fkg%5EoC%29%5Ctimes%20%2810.0%5EoC%29)
![Q=1.449\times 10^6J](https://tex.z-dn.net/?f=Q%3D1.449%5Ctimes%2010%5E6J)
Now we have to calculate the time required.
Formula used :
![t=\frac{Q}{P}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7BQ%7D%7BP%7D)
where,
t = time required = ?
Q = amount of heat required = ![1.449\times 10^6J](https://tex.z-dn.net/?f=1.449%5Ctimes%2010%5E6J)
P = power = 1500 W
Now put all the given values in above formula, we get:
![t=\frac{1.449\times 10^6J}{1500W}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B1.449%5Ctimes%2010%5E6J%7D%7B1500W%7D)
![t=966s\times \frac{1min}{60s}=16.1min](https://tex.z-dn.net/?f=t%3D966s%5Ctimes%20%5Cfrac%7B1min%7D%7B60s%7D%3D16.1min)
Thus, the time required is, 16.1 minutes.
Answer: all the above options are correct.
Explanation:
In sidewall markings,the load index is given as a letter,traction and temperature ratings are based on the speed rating of the tire,the tire's recommended inflation pressure and load are indicated and the DOT code indicates when and where the tire was made.
2. Newton's laws of motion
Uneven heating of land and sea causes warm air over land to rise up, creating a low pressure zone. So wind blows in from the sea to fill this low pressure zone
A. Because metal is a good conductor of heat.
If a frying pan wasn't a good conductor of heat it's purpose of cooking things wouldn't really be resolved. Without heat it couldn't cook well. I think lol that's my way of thinking.
Hope I helped :)