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)
Answer:
0.737 m/s²
Explanation:
Given:
v₀ = 0 m/s
v = 8.20 m/s
Δx = 45.6 m
Find: a
v² = v₀² + 2aΔx
(8.20 m/s)² = (0 m/s)² + 2a (45.6 m)
a = 0.737 m/s²
Not all fungi did that. At one time, there were fungi that dispersed
their spores and fungi that did not disperse their spores.
The fungi that did not disperse their spores produced very few
new fungi, and they aren't around any more.
W=Fd, F=440N, d=5m. 5x440=2,200J of work
Answer:
Membranes
Explanation:
Hydrogen separation uses membranes to separate the hydrogen from other gases, leaving it in its purest and most valuable form. The separated hydrogen that is captured can be used for many different applications including: LIFTING: As a lifting agent similar to helium.