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VashaNatasha [74]
2 years ago
15

A hummingbird flies 1.2 m along a straight path at a height of 3.4 m above the ground. Upon spotting a flower below, the humming

bird drops directly downward 1.4 m to hover in front of the flower. What is the hummingbird's total displacement?
Physics
1 answer:
Viefleur [7K]2 years ago
7 0

Answer:1.84

Explanation:

Given

Humming bird travels 1.2 m along a straight line at height of 3.4 m

Now bird drops 1.4 m to hover in front of the flower

So bird net displacement is

displacement=\sqrt{1.2^2+1.4^2}

displacement=\sqrt{3.4}

=1.84

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Answer:

D:

Explanation:

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2 years ago
Kate is working on a project in her tech education class. She plans to assemble a fan motor. Which form of energy does the motor
grin007 [14]

The job that the fan is designed and built to do is to convert the electrical energy it uses into the kinetic (motion) energy of moving air.

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2 years ago
What is the minimum work needed to push a 950-kg car 710 m up along a 9.0° incline? ignore friction?
kakasveta [241]
<span>1.0344645 MJ The minimum energy need is the potential energy of the car at the top of the ramp and is given by mass*gravity*height mass is known, gravity is assumed to be 9.81m/s^2 as it is on earth, and height must be calculated using trigonometry. height=sin(9 degrees)*710m=111meters so potential energy = 950kg*111m*9.81m/s^2=1.0344645 MJ Using the law of the conservation of energy we can assume that the energy expended to push the car up the incline was at least the potential energy gained by moving 111m against the pull of gravity.</span>
7 0
2 years ago
Read 2 more answers
How could the combustibility of a substance influence how the substances used
aliina [53]

Answer:

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Explanation:

3 0
2 years ago
For a Physics course containing 10 students, the maximum point total for the quarter was 200. The point totals for the 10 studen
Talja [164]

Answer:

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The first number in the colum represents the centen of the point, while the numbers of the second column, represents the units of that centen, for example if you see:

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5 0
2 years ago
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