Brilliant

Today Courses

Algebra
Geometry
Number Theory
Calculus
Probability
Basic Mathematics
Logic
Classical Mechanics
Electricity and Magnetism
Computer Science
Quantitative Finance
Chemistry

Excel in math and science.

Log in with Facebook Log in with Google Log in with email

Join using Facebook Join using Google Join using email

Forgot password? New user? Sign up

Existing user? Log in

Opening A Stuck Jar Lid

Classical Mechanics Level 1

A common solution to open a stuck jar lid is to hold it under warm, running water. Why does this method work?

The metal lid expands more than the glass jar. The glass jar contracts more than the metal lid. Water flows into the gap between the lid and the jar, and decreases the friction between them.

View solutions

Your answer seems reasonable. Find out if you're right!

Sign up to access problem solutions.

That seems reasonable. Find out if you're right!

Sign up to save your progress!

Log in with Facebook Log in with Google Log in with email

Join using Facebook Join using Google Join using email

Forgot password? New user? Sign up

Existing user? Log in

by Pranshu Gaba

×

Problem Loading...

Note Loading...

Set Loading...