Just do energy spent divided by time to get your answer. With this we can say a human might be able to!
It uses electromagnetic radiation waves to enable military communications, navigation, radar, nonintrusive inspection of aircraft, and other equipment. Hope this helps.
Answer:multiplying will give us 7 significant figures and addition will give us 3 significant figures
Explanation:
After multiplying the two numbers they resulting value will give a value in its 4 decimal places because both given values are in 2 decimal places. The 4 dp is gotten by the addition of the decimal places of both given numbers (2+2) and
The result of its addition will give us a value in its 1dp and 3 significant figures since the addition of 23.68 and 4.12 will give us 27.8
Answer:
The length at the final temperature is 11.7 cm.
Explanation:
We need to use the thermal expansion equation:
![\Delta L=\alpha L_{0}\Delta T](https://tex.z-dn.net/?f=%5CDelta%20L%3D%5Calpha%20L_%7B0%7D%5CDelta%20T)
Where:
- L(0) is the initial length
- ΔT is the differential temperature, final temperature minus initial temperature (T(f)-T(0))
- ΔL is the final length minus the initial length (L(f)-L(0))
- α is the coefficient of linear expantion of steel (12.5*10⁻⁶ 1/°C)
So, we have:
![L_{f}-L_{0}=\alpha L_{0}(T_{f}-T_{0})](https://tex.z-dn.net/?f=L_%7Bf%7D-L_%7B0%7D%3D%5Calpha%20L_%7B0%7D%28T_%7Bf%7D-T_%7B0%7D%29)
![L_{f}=L_{0}+\alpha L_{0}(T_{f}-T_{0})](https://tex.z-dn.net/?f=L_%7Bf%7D%3DL_%7B0%7D%2B%5Calpha%20L_%7B0%7D%28T_%7Bf%7D-T_%7B0%7D%29)
![L_{f}=0.117\: m](https://tex.z-dn.net/?f=L_%7Bf%7D%3D0.117%5C%3A%20m)
Therefore, the length at the final temperature is 11.7 cm.
I hope it helps you!