Question

Hey friends,
Can you help me with these two questions.
Please give the full solutions and calculation also.

Q1) 1 light year = how many astronomical units?
Q2) The density of water is 1g/cc, its value in SI is?

Answer 1

Heya user !!!

Here's the answer you are looking for

Q1) 1 light year = how many astronomical units?

ANSWER:

1 astronomical unit = 1.5 × 10¹¹ m

$and \: 1 \: lightyear \: = \: 9.467 \times {10}^{15} m$

So, 1 lightyear

$= \frac{9.467 \times {10}^{15} }{1.5 \times {10}^{11} }$

= 6.31 × 10⁴ Astronomical unit

Q2) The density of water is 1g/cc, its value in SI is?

1g/cc = 1g/ml
=(1/1000)kg/(1/1000)l
=1000/1000 kg/l
=1kg/l

Now 1 l = 1/1000m³

So, 1kg/l
= 1/(1/1000)kg/m³
=1000kg/m³

Therefore, density of water in SI unit is 1000kg/m³.

★★ HOPE THAT HELPS ☺️ ★★