Answer:
The bigger the object, the more heat that can be transferred. Ex: An iceberg would transmit more heat than a kettle
Explanation:
<span>If an electrostatically charged balloon is brought near other objects,
then ...
-- It will be attracted to objects of the opposite charge.
and
-- It will be attracted to objects with a neutral charge.</span>
Answer
given
Case 1-Speed of car 50 Km/h for 15 min
Case 2-Speed of car 85 Km/h for 19 min
Case 3 - Speed of car 60 km/h for 55 min
lunch break time = 25 min
a) total distance travel
we know,
distance = speed x time
![D = 50 \times \dfrac{15}{60} + 85 \times \dfrac{19}{60} + 60\times \dfrac{55}{60}](https://tex.z-dn.net/?f=D%20%3D%2050%20%5Ctimes%20%5Cdfrac%7B15%7D%7B60%7D%20%2B%2085%20%5Ctimes%20%5Cdfrac%7B19%7D%7B60%7D%20%2B%2060%5Ctimes%20%5Cdfrac%7B55%7D%7B60%7D)
D = 94.42 Km
b) ![average\ speed = \dfrac{total\ distance}{total\ time}](https://tex.z-dn.net/?f=average%5C%20speed%20%3D%20%5Cdfrac%7Btotal%5C%20distance%7D%7Btotal%5C%20time%7D)
![average\ speed = \dfrac{94.42}{\dfrac{15}{60}+\dfrac{19}{60}+\dfrac{55}{60}+\dfrac{25}{60}}](https://tex.z-dn.net/?f=average%5C%20speed%20%3D%20%5Cdfrac%7B94.42%7D%7B%5Cdfrac%7B15%7D%7B60%7D%2B%5Cdfrac%7B19%7D%7B60%7D%2B%5Cdfrac%7B55%7D%7B60%7D%2B%5Cdfrac%7B25%7D%7B60%7D%7D)
![average\ speed = 49.69\ km/h](https://tex.z-dn.net/?f=average%5C%20speed%20%3D%2049.69%5C%20km%2Fh)