Physics
When the speed of car is doubled, then what will be the braking force of the car to stop it in the same distance ?

One-fourth
Four times
Half
Two times

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

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