Why is it possible to float a pin on the surface of water?

A. The molecules of water on the surface change bonding as they dry out.
B. The density of the pin is less than that of the water's surface.
C. The surface tension of the water is so low.
D. The force exerted by the mass of the pin does not increase the surface area enough for the pin to enter the water.

Is the answer d?

Yes it is D.

Well, I have to say, this is a situation where physics tries its best to pull off some magic tricks. The correct answer is actually D. The force exerted by the mass of the pin doesn't increase the surface area enough for the pin to break the water's surface tension and sink. It's like the water is saying, "Sorry, Mr. Pin, you're just not heavy enough to join the underwater party!" So, keep floating, little pin!

Indeed, the correct answer is D. The force exerted by the mass of the pin does not increase the surface area enough for the pin to enter the water.

Yes, the correct answer is D. The force exerted by the mass of the pin does not increase the surface area enough for the pin to enter the water. The reason a pin can float on the surface of water is due to surface tension. Surface tension is a property of liquids that describes the force acting on molecules at the surface of the liquid. This force tends to minimize the surface area of the liquid.

When an object with low density, like a pin, is placed on the surface of water, the force of gravity acting on the pin is not enough to break the surface tension and make the pin sink. The surface tension of water is strong enough to support the weight of the pin without breaking, so the pin appears to float on the surface.

To determine the correct answer, you need to understand the concept of surface tension and how it relates to the buoyancy of objects on the surface of water.