How does a lettuce spinner remove water from lettuce?

  • Thread starter Thread starter bkl4life
  • Start date Start date
  • Tags Tags
    Water
AI Thread Summary
A lettuce spinner removes water from lettuce by utilizing circular motion. When the spinner is activated, the force exerted on the lettuce causes it to move in a circular path. This motion allows the water droplets, which lack the same centripetal force, to escape in a straight line through holes in the bowl. The process effectively dries the lettuce by flinging off excess water. Understanding this mechanism highlights the principles of physics at play in everyday kitchen tools.
bkl4life
Messages
25
Reaction score
0

Homework Statement



How does a lettuce spinner remove water from lettuce?
 
Physics news on Phys.org
You still need to show work for conceptual questions.

What is your best attempt at explaining the lettuce spinner?
 
I'm not even sure what a lettuce spinner is. Maybe that's the problem.

I know you fill it up with water and you lift the bowl up and the water will exit through the wholes. The lid has a spinner on it which allows you to get rid of any extra water.

This could work because of circular motion. The force is being exerted on the lettuce causing the water to escape. How wrong am I?
 
bkl4life said:
This could work because of circular motion. The force is being exerted on the lettuce causing the water to escape. How wrong am I?

Correct.

The force is being exerted on the lettuce keeping it moving in a circle. The water drops do not have as much force pulling them in a circle so they fly off in a straight line.
 
Awesome! Thanks!
 

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
View full post »

Similar threads

Kinematics - Identifying and describing types of motion
Replies
5
Views
2K
Kinematics - identifying and describing types of motion
Replies
20
Views
2K
The theory behind sound generation from spinning objects
Replies
7
Views
2K
Ar (Gas) goes into spinner (Adiabatic Decompression): Power?
Replies
4
Views
2K
How Do You Calculate Angular Acceleration of a Salad Spinner?
Replies
9
Views
9K
Solving Crazy Salad Spinner's Puzzle: Find String Strength
Replies
1
Views
2K
How much time does it take to warm up water?
Replies
15
Views
2K
Some simple distance vs time problems?
Replies
2
Views
4K
Probability - Playing a Game with Two Fair Spinners
Replies
6
Views
5K
'How Does Your Garden Grow' thread - raised beds
Replies
36
Views
1K

Hot Threads

Recent Insights

Back
Top