Physics
The force exerted by a magnet is an example of ________

Non-contact force
Contact force
Muscular force
Electrostatic force

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Physics
In heating frozen foods in sealed pouches in a microwaves, why do you first poke holes in the pouch?

To allow the microwaves to get into the food through the holes
To allow the aroma of the food to come out through the holes
To prevent the steam pressure from bursting open the pouch
To allow the heat to get into the food through the hole

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