For the love of Math.

I'm not even going to bother posting my math questions here lel

 

@ectoplasmaticgoo this is a physics question, yet it has math too.

A paperweight, when weighed in air, has a weight of W = 7.4 N. When completely immersed in water, however, it has a weight of W in water = 4.3 N. Find the volume of the paperweight.

 

My math questions are too long to be posted here

 

Calculate the mass of sun.
It's really not that hard...

 

Omg I love math.
@hnkaj15414
Best subject eveahhh.
<3
also the talks in math lolol.

 

O really?
Please, be my guest, calculate the mass of the sun.
And don't look it up c:

 

It's possible by using scientific notation..

Just computate the distance or the circumference of earth and the sun, and the whole solar system. Then shorten it by earth and sun.

 

Em...isn't that the buoyancy thingy? English isn't my primary language and I just recently started learning technical English, so it's a bit hard to explain for me. When I immerse something in the water, buoyancy is equal to the displaced water by the paper, hence why paper seems "lighter".
I got 316 cm^3.

 

Sounds correct to me...

 

In Rt triangle ABC, Angle ACB=90 degree. AB=10, tangent A=4/3. D is a 'moving point' on AB, Connect CD and draw DE perpendicular to CD, meet ray CB at E, let AD=x.

(1): When AD=DB, DE=?
(2):When BED is an isosceles triangle, what is x?
(3): When y=DE/DB, work out the relationship between y and x, and write out the definition range of x.

Pretty tough one, maybe costing a lot of time. :p Our monthly examination's 25th one, the last one.

Contains: Functions, similiar triangles and so on.

 

I believe it is 1.989E30 kg

 

Off the top of your head right?
lol

 

Simple Maths Problem
If the fluid has being flowing at 15 litres a minute for 15 minutes. What on earth is wrong with my bladder?

 

Yes.
You have a problem?

 

2+2=22

 

Please, show your work c:
I would like to know how you singlehandedly calculated the mass of the sun.