Explanation:
- Climbing a mountain is similar to hiking from the equator to the pole because in both cases temperature decreases.
- The higher you go, the cooler it becomes.
- For a certain elevation, there is particular drop in temperature. High altitudes offers cooler temperatures.
- The equator receives a huge insolation and the sun is overhead there.
- It implies that the temperature is always high around the equatorial region.
- As one increases latitude, the temperature drops and its is coldest at the pole.
- In both cases, temperature drops and it gets colder.
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Answer:
the answer is B. it's too easy
Answer:
Explanation:
horizontal component of velocity of throw = 20 cos20 = 18.8 m /s
vertical downwards component = 20 sin20 = 6.84 m /s
time to displace by height 30 m = t , initial velocity u = 6.84 m /s
h = ut + 1/2 gt²
30 = 6.84 t + .5 x 9.8 t²
4.9 t² + 6.84 t - 30 = 0
t = - 6.84 ±√( 6.84² + 4 x 4.9 x 30 ) / 2x 4.9
= - 6.84 ±√( 46.78 + 588 ) / 9.8
= - 6.84 ±√(634.78 ) / 9.8
= - 6.84 ±25.2 / 9.8
= 1.87 s
horizontal displacement in 1.87 s
= 18.8 x 1.87
= 35.15 m .