Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 2 | Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
explain in detail how do pls ty
Date Posted: 1 year ago
Views: 225
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Sphere fits exactly in can -> means the radius of sphere = radius of the can.
let this radius be r, and diameter = 2r
Water just covers the sphere means the height of the water = height of the sphere = diameter
i) surface area of can in contact with water
= surf( base + curved surface)
= pi r^2 + 2 pi r (2r)
ii) Initial volume of water = Volume of cylinder(where h=2r) - volume of sphere = pi r^2 (2r) - 4/3 pi r^3
pi*r^2*(initial depth)= Initial volume of water solved above.
Solve for initial depth of water.
let this radius be r, and diameter = 2r
Water just covers the sphere means the height of the water = height of the sphere = diameter
i) surface area of can in contact with water
= surf( base + curved surface)
= pi r^2 + 2 pi r (2r)
ii) Initial volume of water = Volume of cylinder(where h=2r) - volume of sphere = pi r^2 (2r) - 4/3 pi r^3
pi*r^2*(initial depth)= Initial volume of water solved above.
Solve for initial depth of water.
Date Posted:
1 year ago
360 Tutoring Program