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Andrews [41]
3 years ago
15

During takeoff, an airplane climbs with a speed of 130 m/s at an angle of 47 degrees above the horizontal. The speed and directi

on of the airplane constitute a vector quantity known as the velocity. The sun is shining directly overhead. How fast is the shadow of the plane moving along the ground? (That is, what is the magnitude of the horizontal component of the plane's velocity?)
Physics
1 answer:
Reptile [31]3 years ago
5 0
130cos(47deg) = 88.6598 m/s
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Option B

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What’s the difference between the resistance of 1,000 feet of aluminum No. 14 wire and 1,000 feet of No. 14 copper wire? A. The
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3 years ago
50 POINTS !!!
shepuryov [24]

Answer:

a) I = 464 kg m²,  b)  K = 631 .6 J, c)  v = 8.25 m / s

Explanation:

a) the moment of inertia of point particles is

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in this case

          I = 8 5² + 3 (-2) ² + 7 (-6) ²

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b) The kinetic energy is

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c) linear and angular velocity are related

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8 0
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