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Yes. They carry energy, which creates work.
work is only said to be done when force applied to a load moves through a distance.that is to say that a man standing one place carry a load without moving for 5 hours have not done any work.
Work is equal to a change in energy. in this case the backpack has the same energy throughout the walk and thus no work is done
You fit the shoe onto your foot and when you walk, and the ground will not hurt you or get your feet dirty. you put them on your feet and walk with them
In thermodynamics, work done by a system on its surroundings or another system is said to be positive.
No.
Do you walk to work or carry a lunch, that's what we need to know.
Because you can't change a flat while holding a lunch bag silly!
Everyone will soon need to use insulated lunch totes for work, school, and day at the park. That is why so many places carry them. Major stores like Walmart, Target, CVS, and Walgreens carry them all season long.
it is useful to take a pack lunch to work at first
Before everyone went to plastic bags grocery sacks and lunch sacks were made of brown paper. If someone was brown bagging it meant they brought their lunch to work or school rather than buying it there. Over the years even if you brought your lunch in a lunch pail you were said to be brown bagging.
You don't have to take lunch no matter how much I work.
Two words. Lunch break.
Lunch & a thermos.
Leave your job for a lunch break when it is time for lunch.
I think the lids were to protect what you were drinking, keep insects and particles from landing in the glass. I use mine to carry food to work for lunch.
rice