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harina [27]
3 years ago
14

You walk 4.5 km in one direction then make a 45 degree turn to the right and walk another 6.4 km what is the magnitude of your d

isplacement
Physics
1 answer:
uranmaximum [27]3 years ago
6 0

Answer:

The magnitude of your displacement is 4.52 Km

Explanation:

Initially you walk 4.5 km in one direction. Then after turning to 45 degrees then you walk 6.4 km

So let us use cosine formula to find the distance

Distance = \sqrt{a^2 +b^2 -2abcos(angle)

Substituting the given values

Distance = \sqrt{4.5^2 +6.4^2 -2(4.5)(6.4)cos(45)}

Distance = \sqrt{20.25+40.96 -2(4.5)(6.4)(0.707)}

Distance = \sqrt{20.25+40.96 -2(28.8)(0.707)}

Distance = \sqrt{20.25+40.96 - (57.6)(0.707)}

Distance = \sqrt{20.25+40.96 - 40.72}

Distance = 4.52 km

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A motorcycle traveling at 25 m/s accelerates ya a rate of 7.0 m/s2 for 6.0 seconds. What is the final velocity of the motorcycle
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Vega, the brightest star in the constellation lyra, has a parallax angle of approximately 0.13 arcseconds. approximately how far
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Vega, the brightest star in the constellation lyra, has a parallax angle of approximately 0.13 arcseconds,  approximately  Vega will be 25.076 Light year or 7.692 Parsec away from the sun

The parallax angle is the angle between the Earth at one time of year, and the Earth six months later, as measured from a nearby star.

Mathematically it can be understood as that the parallax angle is the angle which is taken from a point at one time on the earth and again after six months later from the same point on the earth. The parallax angle is the semi-angle of inclination between the two lines to sight.

Stellar parallax is the basis for the parsec, which is the distance from the Sun to an astronomical object that has a parallax angle of one arcsecond.

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given

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So, 7.692 Parsec will be equal to =  3.26 * 7.692 = 25.076 Light year

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To learn more about Stellar parallax here

brainly.com/question/4885471?referrer=searchResults

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