Answer:
Inertia! I hope this helps!
Answer:
Option C
Explanation:
given,
velocity of airplane = 80 m/s
angle with the horizontal = 15°
speed of the ground= ?
when the plane is taking off the horizontal component of the velocity is v cosθ
so,
ground speed of the airplane is =
=
v = 77.27 m/s
horizontal velocity of the air plane comes out to be 77.27 m/s ≅ 77 m/s
so, the correct option is Option C
Answer:
5.05 m/s
Explanation:
The distance from the bottom of his feet to his center of mass is (when is hanging at rest) is 2.1 - 1.3 = 0.8 m. Assume he keeps the posture, as soon as his feet touches the ground, his center of mass is 0.8 m above the ground. This would mean that he has traveled a distance of 2.1 - 0.8 = 1.3 m vertically. Using the law of energy conservation for potential and kinetic energy, also let the ground be ground 0 for potential energy, we have the following mechanical conservation energy:
Since he was hanging at rest, his initial kinetic energy at H = 2.1m must be 0. Let g = 9.81m/s2 and m be his mass, we can calculate for his velocity v at h = 0.8 m. First start by dividing both sides by m
Water changes from a liquid to a gas.
Explanation:
In locations U and X, water changes from a liquid to a gas.
What we have in this step is a phase change by which liquid water turns into vapor.
- Evaporation is a phase change from liquid to gaseous form.
- Water in the ocean and in plants are removed by evaporation and turned into vapor.
- In the air, at stage V, the water condenses
- The condensed water falls back as precipitation in step W which runs off
learn more:
State changes brainly.com/question/10972073
#learnwithBrainly
Explanation:
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