Question

Three planets are in circular orbits around a star. Their polar coordinate positions relative to the star are: Location of planet 1 (74.45°) Location of planet 2 (85.74°) Location of planet 3 (93.53°) If the position of the star is (120;45°), which planet is farthest from the star?

81

likes
407 views

Answer to a math question Three planets are in circular orbits around a star. Their polar coordinate positions relative to the star are: Location of planet 1 (74.45°) Location of planet 2 (85.74°) Location of planet 3 (93.53°) If the position of the star is (120;45°), which planet is farthest from the star?

Expert avatar
Sigrid
4.5
119 Answers
1. Convert the polar coordinates of the star to Cartesian coordinates:
(r, \theta) = (120, 45°) \implies (x, y) = (120 \cos 45°, 120 \sin 45°)
x = 120 \cdot \frac{\sqrt{2}}{2} = 60\sqrt{2}
y = 120 \cdot \frac{\sqrt{2}}{2} = 60\sqrt{2}

2. Compare distances from the star to each planet in polar coordinates, remembering that in polar coordinates with the same radius, the further the angle is from the reference angle, the farther it goes:
- Since planet 1 (74.45°) and planet 2 (85.74°), planet 3 (93.53°) all share the same radius defaulting to the polar coordinates, in this simplest problem given note comparing the relative distances each time the largest angle implies the largest relative distance:

Since
93.53° > 85.74° > 74.45°
Answer:
Planet \; 3 (93.53°)

Frequently asked questions (FAQs)
What is the value of sinh(2) + cosh(1) - tanh(0.5)?
+
Math question: Graph the inequality 2x + 3y ≤ 12. Does the point (1, 4) satisfy this inequality? Justify your answer.
+
Math Question: "Factorize the expression x^2 + 4xy + 4y^2 using the square of a binomial formula."
+
New questions in Mathematics
Find an arc length parameterization of the curve that has the same orientation as the given curve and for which the reference point corresponds to t=0. Use an arc length s as a parameter. r(t) = 3(e^t) cos (t)i + 3(e^t)sin(t)j; 0<=t<=(3.14/2)
a ferry travels 1/6 of the distance between two ports in 3/7 hour. The ferry travels at a constant rate. At this rate, what fraction of the distance between the two ports can the ferry travel in one hour.
String x = 5 Int y=2 System.out.println(x+y)
I) Find the directional derivative of 𝑓(𝑥, 𝑦) = 𝑥 sin 𝑦 at (1,0) in the direction of the unit vector that make an angle of 𝜋/4 with positive 𝑥-axis.
Derivative of x squared
What is the r.p.m. required to drill a 13/16" hole in mild steel if the cutting speed is 100 feet per minute?
-3x 2y = -6; -5x 10y = 30
Identify a pattern in the list of numbers.Then use this pattern to find the next number. 37,31,25,19,13
is the x element (180,270), if tanx-3cotx=2, sinx ?
4x + 8y = 5 2x + 4y = 10
20% of 3500
Task 1 angel has 3 quarters 3/8 of a tank of gasoline and Miguel 7/8, who has more gasoline? number line on number line
Calculate the minimum size of a simple random sample assuming a sampling error of 5% assuming that the population size is 100 elements
cube root of 56
A natural gas company has a fixed rate of 1,320 pesos plus 1,590 pesos per cubic meter of gas consumed monthly per customer. Indicate the cost function to determine the value in pesos of the cubic meters of gas consumed in a month per customer. How much did a customer who consumed 18 cubic meters of gas pay? If a customer paid 34,710 pesos, how many cubic meters of gas did he consume?
Find the vertex F(x)=x^2-10x
Log0
A 20,000 kg school bus is moving at 30 km per hour on a straight road. At that moment, it applies the brakes until it comes to a complete stop after 15 seconds. Calculate the acceleration and the force acting on the body.
4m - 3t + 7 = 16
Let A denote the set of all people who were alive in 2010. Let B denote the set of all real numbers. Let f assign, to each person in A, their weight during the year 2010. Is f a function? Explain in complete sentences.