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The weight would double, while the mass stayed the same.
We can't find the term "upthrust" in any of the myriad volumes in our vast reference library. If the object's weight balances the weight of a 500g standard while in air, and the weight of a 400g standard while in water, then the effect of the water is to produce an upward force on the object equal to the weight of a 100g standard, or 0.978 Newton. By Archimedes' principle, this is also the weight of the water displaced by the object, which tells us that the object has a volume very near 100 cc.
the object will move
An object's color is comprised of the wavelengths of light that it reflects - so an orange object reflects reds and yellows while absorbing blues and greens, while a green object is the opposite.
Gravity is unopposed while an object is falling.
The weight of the water displaced by the object is subtracted from the actual weight of the object (out of water), leaving the object with a net positive weight while submerged.
The weight would double, while the mass stayed the same.
can heat form while heated
no
When you move a heavy object, you must apply a lot of force before the heavy object begins to move. This resistance you feel while the box is NOT moving is static friction. Static friction opposes movement in an initially non-moving object.
Heated blankets are designed to be used overnight while sleeping, so there's little risk.
If your vehicle begins to overheat while climbing a hill you should
Yes the whole body of the hot plate is heated while cooking because of molecular induction effects.
The effect is increased while boating
The effects are increased while boating
For the same reason you rotate a marshmallow on a fire or a chicken in a barbecue. So one side is not over heated while the other side remains cold.
That is to allow even heat distribution. If the object being heated in a flame is held in one position, a "hot spot" will occur and the liquid may start to boil at that spot.