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goldfiish [28.3K]
3 years ago
13

What is the speed of a helicopter that traveled 1200 miles in 7 hours

Physics
2 answers:
zlopas [31]3 years ago
8 0
1200
-------=171 miles per hour
7

sladkih [1.3K]3 years ago
3 0

Answer:

The answer is 171 m/h

Explanation:

Speed relates to positional change with time, that is, it expresses the distance traveled in a given time.

The speed is expressed as v = \frac{d}{t}

The helicopter has to travel 1200 miles (distance) in 7 hours (time). Then we can replace the values in the velocity formula.

v = \frac{1200 }{7 } \\v = 171,42 m/h

Therefore the helicopter speed is equal to 171 m/h

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The resultant force of both forces is 15.62 N.

<h3 /><h3>What is resultant?</h3>

The Resultant of forces is a single force obtained when two or more forces are combined.

To calculate the resultant of the force, we use the formula below.

Formula:

  • R = √[a²+b²-2abcos∅]..................... Equation 1

Where:

  • R = Resultant of the forces.
  • ∅ = Angle between both forces

From the question,

Given:

  • a = 8 N
  • b = 10 N

Substitute these values into equation 1

  • R = √[8²+10²-2×8×10cos120°]
  • R = √[64+100-160cos120°]
  • R =√ [164-160(-0.5)]
  • R = √[164+80]
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Hence, the resultant force of both forces is 15.62 N.

Learn more about resultant force here: brainly.com/question/25239010

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2 years ago
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Misha Larkins [42]

Answer:

variations in great horned owl body size due to food supply can be acted on by natural selection.

Explanation:

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Answer:

variation in body size due to inherited traits can be acted on by natural selection

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Variations in body size in body size due to inherited trait can be acted upon by natural selection by favoring the size that is best suited for the survival of the species. Those with these genes survive and pass it on to their offspring, while those with the unfavorable body size are wiped out.

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How does kinetic energy affect the stopping distance of small vehicle compared to a large vehicle
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The kinetic energy for a large vehicle is different from that of a smaller vehicle, assuming that the vehicles are travelling at the same speed and stopping the same distance. This is because for a larger vehicle the kinetic energy is higher, as the mass for a larger vehicle, is more than the smaller vehicle.
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Calculate the speed of a proton after it accelerates from rest through a potential difference of 380 v .
nikitadnepr [17]

The magnitude of the change in potential energy is equal to the kinetic energy,

\left | \Delta U \right |= K

or                        

qV=\frac{1}{2} mv^{2}    

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We can also write,

v=\sqrt{\frac{2qV}{m} }

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Therefore, the speed of proton is 7.27\times10^{6}m/s.


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Monochromatic light passes through two parallel narrow slits and forms an interference pattern on a screen. As the distance betw
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