# Yahoo Web Search

1. ### An electric field of 140000 N/C points due west at a certain spot.?

That would be... 1.4 * 10^(5) * -9.9 → -1.386 * 10^6 Good luck!

1 Answers · Science & Mathematics · 13/02/2012

2. ### A car travels 4km due west and then 5km due south. How far is the car from its starting point ?

Think right triangle, use Pythagorean Theorem to solve: distance = √(4² + 5²) distance = √41 = 6.4 km .

1 Answers · Science & Mathematics · 20/04/2009

3. ### A surveyor notes that the direction from point A to point B is South 63 degrees west and the direction from A?

The triangle shape are it's appear at second quatrain of the coordinate system ,which AB at 63 degree it's shorter line than the AC at 38 degree and BC line .This make the AC hypotenuse of the triangle ,using C^2=A^2+B^2...

1 Answers · Science & Mathematics · 28/02/2014

4. ### A ship leaves a port and travels due west . At a certain point it turns 31.5° north of west and travels an additional 42.0 mi to a point 63.0?

cos(31.5) = y/42 y = 42cos(31.5) y = 35.81 mi sin(31.5)= z/42 z = 42sin(31.5) z = 21.94 mi 63^2 = Z^2 + (x + y)^2 63^2 = 21.94^2 + (x + 35.81)^2 3969 = 481.36 + x^2 + 71.62x + 35.81^2 3969 = 481.36 + x^2 + 71.62x + 1282.36 x^2 + 71.62x = 2205.28 x^2 + 71.62x + 1282.36 = 3487.64 (x + 35.81)^2 = 3487.64 x + 35.81 = +- 59.06 x = 23.25 or -94.87 distance can't be...

1 Answers · Science & Mathematics · 18/04/2015

5. ### math:brandon hikes 7 miles south and 4 miles west . how far is he from the starting point of his hike?

(7^2 + 4^2)^.5 (49 +16)^.5 (65)^.5 8.1 miles

1 Answers · Science & Mathematics · 04/02/2008

6. ### Help with an easy calculus problem please?

...the coast oriented north-south: water east; land west • point A on the shore closest to the boat...value of 1.68 hours (2 dp) when x = 1 ➞ Point P should be located 1 mile south of...

2 Answers · Science & Mathematics · 07/12/2011

7. ### Travel 4Km west , then 2Km northwest. How far did you travel from your starting point ?

You can use the law of cosines to get the distance. ......___________________ c =√ a^2 + b^2 - 2abcos(y) ......_______________________________ c =√ 2^2 + 4^2 - 2(2)(4)(cos 135 degrees) ......__________________ c =√ 4 + 16 - 16( - .7071) ......____________ c =√ 20 + 11.3137 ........_______ c = √ 31.3137 c = approx. 5...

2 Answers · Science & Mathematics · 14/11/2009

8. ### Two cars start moving from the same point . One travels south at 64 mi/h and the other travels west at 48 mi/h.?

64 * 4 = 264 48 * 4 = 192 distance² = 264² + 192² <=> distance² = 106560 <=> distance = sqr (106560) = 326.43 miles

3 Answers · Science & Mathematics · 31/03/2009

9. ### A helicopter lands at a point 40 km west and 25 km south of the point at which it took off.?

d = √(1600 + 625) d = 5√89 ≈ 47.17 km

6 Answers · Science & Mathematics · 16/12/2011

10. ### An ant starts at point A, crawls 8 cm east, then 5 cm south, 3 cm west , and 4 cm north to Point B...then..?

B is 5 east of A and 1 South of A so displacement is Square root( 5^2 + 1^2)

1 Answers · Science & Mathematics · 31/10/2011