Answer:
They represent compounds and mixtures
Explanation:
The volume of the helium balloon in order to lift the weight is 17,760m³.
To find the answer, we need to know about the buoyant force.
<h3>What's the buoyant force?</h3>
- When a lighter object is kept in a higher density medium, it experiences a force along upward by that medium. This is buoyant force.
- Mathematically, buoyant force= density × volume of the object×g
<h3>What's the volume of helium required to lift the 269kg weather balloon and 2910kg package?</h3>
- To lift the weight, the buoyant force must equal to the weight.
- If V is the volume of helium, buoyant force= V×0.179×g
- So, V×0.179×g = (269+2910)g
=> V= 3179/0.179 = 17,760m³
Thus, we can conclude that the volume of the helium balloon in order to lift the weight is 17,760m³.
Learn more about the buoyant force here:
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Answer:
42.99°
Explanation:
= Kinetic friction force
= Pulling force at angle
= Weight of the box = 150 N
Kinetic friction force
Pulling force at angle
N = Pulling force
According to question
Applying Newton's second law in the vertical direction we get
The angle is 42.99°
B.sunnny cold probable rain
3NaOH + FeCl3 → 3NaCl + Fe(OH)3