The Sun has an angular diameter of about 0.5 and an average distance of about 150 million. What is the Sun's approximate physical diameter?

Answer 1

Approximately #1.3# million kilometres

In radians, #0.5^@# is #0.5*pi/180=pi/360#

The approximate physical diameter will be:

#150000000 * sin (pi/360) ~~ 150000000 * pi/360~~1300000#km
that is #1.3# million kilometres.
This is about #100# times the diameter of the Earth, so the Sun has a volume approximately #100^3 = 1000000# times that of the Earth.

Note

The actual diameter is closer to #1.4# million kilometres, meaning that the angular diameter is closer to #0.54^@#. This makes the sun #109# times the diameter and about #1.3# million times the volume of the Earth. The mass of the sun is estimated to be about #333000# times the mass of the Earth, so its average density is about one quarter of the Earth's average density.
Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer 2

The Sun's approximate physical diameter is about 1.4 million kilometers.

Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

Not the question you need?

Drag image here or click to upload

Or press Ctrl + V to paste
Answer Background
HIX Tutor
Solve ANY homework problem with a smart AI
  • 98% accuracy study help
  • Covers math, physics, chemistry, biology, and more
  • Step-by-step, in-depth guides
  • Readily available 24/7