If you sit on a rock with a downward force of 'W' pounds, then the rock exerts an upward force
of 'W' pounds on your derriere.
We know that the sum of the forces on the seat of your pants must be zero. Otherwise the
pants would be accelerating, either up or down.
The "buoyant" force is acting on it, in the vertically upward direction. That force is equal to the weight of the water that would be in the volume of the rock if the rock weren't there.
gravity
Gravity
Gravitaional force is the force pulling on it from the Earth.
No, mass is a measure of how much matter there is. Weight is the measure of force of gravity acting on that mass. A rock has the same mass whether it's on Earth or the Moon or Jupiter, or floating out in space. The weight for each of these situations will be quite different.
The "buoyant" force is acting on it, in the vertically upward direction. That force is equal to the weight of the water that would be in the volume of the rock if the rock weren't there.
gravity
the force that acts on rock to change its shape or volume is stress.
Gravity
Gravitaional force is the force pulling on it from the Earth.
No, dense rock does not have low gravity. Gravity is a fundamental force that acts on all objects with mass. The density of a rock refers to its mass per unit volume, but it does not affect the force of gravity acting on it.
No, mass is a measure of how much matter there is. Weight is the measure of force of gravity acting on that mass. A rock has the same mass whether it's on Earth or the Moon or Jupiter, or floating out in space. The weight for each of these situations will be quite different.
No, mass is a measure of how much matter there is. Weight is the measure of force of gravity acting on that mass. A rock has the same mass whether it's on Earth or the Moon or Jupiter, or floating out in space. The weight for each of these situations will be quite different.
it is the mesosphere
Weight is not a force. Weight is a phenomenon associated with a mass in a gravimetric field. It's actually the acceleration of a mass acted on by gravity, which is a force. A 100-pound rock would weigh nothing in deep space. It would be weightless. But the rock weighs 100 pounds on earth because of (mostly) the mass of the earth and also (just a tiny bit) because of the mass of the rock.
The buoyant force on a submerged object is equal to the weight of the displaced fluid. The density of the water is 1,000 kg/m3, so its weight is 1,000 N/m3. The volume of the rock is 0.3 m3. The buoyant force = weight of the displaced water = (0.3 x 1,000) = 300 N.