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:
brainly.com/question/3228409
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Answer:
The speed of light in air is c = 3 × 108 m/s.
Thus, the speed of light in glass will be given as.
v = c/n = 3 × 108/ 1.5 = 2 × 108 m/s.
The speed, wavelength and frequency are related as.
c = νλ
Thus, wavelength in air is given as.
λa = c/ν = 3 × 108/ 6 × 1014 = 5 × 10-7 m.
Answer:
Decelerating
Explanation:
One arrow is moving it forward but the other arrow is using more force to move it backwards causing it to have a reduction in speed.
Answer:2538.43 N
Explanation:
Given
Mass of Log=205 kg
Ramp angle
Coefficient of Friction=0.855
log acceleration
Let T be the Tension
Here
T=849.04+132.63+1556.76=2538.435 N
I have a hunch that you've got the <em>question</em> totally covered, and what you actually need is the <em>answer.</em>
- Kinetic energy = (1/2) (mass) (speed²)
Multiply each side by 2 : 2 x KE = (mass) ( speed²)
Divide each side by (mass): Speed² = 2 x KE / mass
Square root each side: <em>Speed = √(2 KE/mass)</em>
Look at that ! The question GIVES you the KE and the mass. All you have to do is plug those 2 numbers into the right side of that equation, turn the crank, do the arithmetic, and the speed falls out.
I get 200 m/s . You need to check my work.
(IF that's correct or anywhere close, it's equivalent to something around 447 miles per hour, which is very reasonable for a cruising airliner.)