Answer:
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Answer:
Shadows are formed when an opaque object or material is placed in the path of rays of light. The opaque material does not let the light pass through it. The light rays that go past the edges of the material make an outline for the shadow.
Explanation:
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Answer:
Final speed, v = 547.2 m/s
Explanation:
Initial velocity of the bullet, u = 0
Acceleration of the bullet,
Time taken,
Let v is the final velocity of the muzzle. It can be calculated using the first equation of motion as :
v = 547.2 m/s
So, the final speed of the muzzle is 547.2 m/s. Hence, this is the required solution.
Define an x-y coordinate system such that
The positive x-axis = the eastern direction, with unit vector
.
The positive y-axis = the northern direction, with unit vector
.
The airplane flies at 340 km/h at 12° east of north. Its velocity vector is
The wind blows at 40 km/h in the direction 34° south of east. Its velocity vector is
The plane's actual velocity is the vector sum of the two velocities. It is
The magnitude of the actual velocity is
v = √(121.1615² + 306.0473²) = 329.158 km/h
The angle that the velocity makes north of east is
tan⁻¹ (306.04733/121.1615) = 21.6°
Answer:
The actual velocity is 329.2 km/h at 21.6° north of east.
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