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1. ### The pilot stops the same plane 484 meters using a constant acceleration of -8.0 meters per second squared.?

(Vf)^2 = (Vi)^2 2aΔd Since the airplane comes to a stop, the final velocity, Vf is zero. So, Vi = √(-2aΔd) = √(-2(-8)(484)) = 88 m/s

4 Answers · Science & Mathematics · 18/01/2017

2. ### vectors help ?!?

. tanθ = 30sin45° / (700 - 30cos45°) tanθ = 0.03125 θ = arctan(0.03125) θ = 1.79° ———— v/sin45° = 30/sin1.79° v = 30sin45°/sin1.79° v = 679.2 km/hr ———————

3 Answers · Science & Mathematics · 08/01/2017

3. ### Consumer math help?

The Pythagorean theorem applies. .. d = √((28 ft)^2 +(25 ft)^2)) = √((784 +625) ft^2) .. = (√1409) ft ≈ 37.5 ft

2 Answers · Science & Mathematics · 01/01/2017

4. ### Combinations. In how many ways can a committee of 5 people be chosen from 9 people?

You are absolutely correct my friend. Last year there was a rumour that things will be more democratic from now on and indeed there have been significant changes in the body of the Nobel Prize Committee . We shall...

2 Answers · Science & Mathematics · 13/12/2016

5. ### Trig Word Problem?

Taking the East direction as the x-axis, the first plane has an angle 70° above the x-axis, and the second plane, 40° below the x-axis, so the angle between them is 110° In 3 hrs, 1st plane travels 3*427 = 1281 mi, and the 2nd plane, 3...

1 Answers · Science & Mathematics · 05/12/2016

6. ### Can somebody help?

t = temperature rise Original length = 6240 cm 29 = 6240*2.40t/10^5 t = 29*10^5/[2.4*6240] = 193.6 C T = 15+193.6 = 208.6 C

1 Answers · Science & Mathematics · 04/12/2016

7. ### Math Word Problem help?

If the speed of the plane is P, and the speed of the wind is W, then using the distance equation: distance = rate * time 500 = (P+W) * 2 500 = (P-W) * 3 500 = 2P + 2W 500 = 3P - 3W Multiply the top equation by 3 and...

3 Answers · Science & Mathematics · 08/11/2016

8. ### An airplane flies at an altitude of y = 2 miles toward a point directly over an observer. The speed of the plane is 500 miles per hour?

Let x represent the horizontal distance from the airplane to the observer. Then .. x = 2*cot(θ) .. x' = -2*csc(θ)^2*θ' .. θ...

2 Answers · Science & Mathematics · 12/10/2016

9. ### I need help with a system of equation word problem?

Define variables, generally choosing ones that are related to the quantities you are asked to find. Then write the relationships described by the problem statement. You are...

1 Answers · Science & Mathematics · 29/09/2016

10. ### I can't find the equations for these math questions. Please help! I feel like I do, but I just can't get it down. Thanks in advance!?

f + t = 63 & 5f + 20 t = 885...from the 1st : t = 63 - f...put it into the 2nd and solve 80 = 32 t...find t....difference in speed is 32

1 Answers · Science & Mathematics · 02/11/2016