I we know that is the difference right of the donor. So the height that is submerged is half the. On the right side you have the density of the oil multiplied by the area of the doughnut.
So on the left side we have the city of the doughnut multiplied by the area of the doughnut, modify baby height of the donor. So this up We know that the volumes equals two area modified by the high. The volume of the oil displaced is equal to the volume of the donor. On the right side of the density of the oil motive by by the volume of the oil is place mm. What we're looking for, motivated by the volume of the donor. So on the left side we have the density of the donor. So simplifying our equation reduces to this and using density formula, which is the volume, then the mass is equal to the product of density in the volume. This place multiplied by the acceleration due to gravity.
And on the right side you have the mass of the oil. So on the left side we have the mass of the donut, multiplied by the acceleration to local gravity. This place when you don't, then we over this and we know the weight is the product of the yeah, mass of an object acceleration due to gravity. But if you make this principle, the buoyant force is equal to the weight of the oil. So the way of the donor is equals to the boy and force since it's in the donating equilibrium as it floats in the air in. So we can solve this problem if you relate the density of the oil with the density of the donate and we can do that by the buoyant force since the buoyant force is related to the density and the boy enforces related to the week of the object industries, which is the donna. The density of the oil is also given with the value of 919 kg per meter cube. So this problem ask for the density I stayed down like given that the height of the white stripe, He's Sarah. Watching the doughnuts cook gives the customers time to develop an appetite as they ponder the physics of the process.įirst, the uncooked doughnut is dropped into hot vegetable oil, whose density is $\rho=919 \mathrm$ One popular brand of doughnut automates this process the doughnuts are made on an assembly line that customers can view in operation as they wait to order. Doughnuts are cooked by dropping the dough into hot vegetable oil until it changes from white to a rich, golden brown.