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Gravity

One of the four fundamental interactions, gravity is responsible for the fact that any objects with mass attract one another. According to general relativity, it is a space time curvature, but according to quantum mechanics it is the result of exchanges of virtual gravitons.

4,784 Questions

What is the specific gravity of whisky?

The specific gravity of whisky typically ranges from 0.905 to 0.965. This measurement can vary based on factors such as alcohol content and production methods.

What detects gravity and linear acceleration?

The inner ear's vestibular system is responsible for detecting linear acceleration, which includes changes in motion like speeding up or slowing down. Gravity is sensed by the otolith organs within the vestibular system, specifically the utricle and saccule, which detect changes in head position and orientation relative to gravity.

Why is the center of gravity Important in the body?

The center of gravity in the body is important for maintaining balance and stability. It influences posture, coordination, and movement patterns. Proper alignment and control of the center of gravity are crucial for efficient and effective physical performance.

How does gravity work according to Einstein?

According to Einstein's theory of general relativity, gravity is the result of mass warping the fabric of spacetime. Objects with mass create a gravitational field around them that causes other objects to move along curved paths. In this way, gravity is a result of the geometry of spacetime being influenced by mass.

How do you calculate the the specific gravity for minerals?

Specific gravity of a mineral is calculated by dividing the weight of the mineral by the weight of an equal volume of water. This is typically done using a balance to measure the weight of the mineral and a graduated cylinder to measure water displacement. The specific gravity value provides information about the density and composition of the mineral in comparison to water.

What is how strongly gravity pulls?

Gravity is the force of attraction between objects with mass. The strength of gravity pulling objects towards each other depends on their masses and the distance between them. The greater the mass of the objects and the smaller the distance between them, the stronger the gravitational pull.

Is sliding into a baseball base a push pull gravity or friction?

Sliding into a baseball base involves a combination of friction and gravity. Friction helps the player slow down, while gravity aids in pulling the player down towards the base. Players may also use a push-off motion with their legs to propel themselves towards the base during the slide.

What is a drag and how does it act on the force of gravity?

Drag is a resistive force that opposes the motion of an object moving through a fluid (like air or water). It acts on the force of gravity by slowing down the object's motion as it falls. The greater the surface area or shape of the object, the more drag it experiences, affecting how quickly it falls due to gravity.

What is a type of force?

One type of force is gravity, which is the force that pulls objects toward each other. This force is responsible for keeping planets in their orbits around the sun and objects on Earth grounded.

When a bus take a turn passengers are thrown away from the centre of there curved path. why?

Due to inertia, the passengers - and anything else in the bus - have a tendency to continue moving in a straight line. Newton's Second Law describes how a force is required to accelerate the passengers, which means (roughly), to change their velocity. In this case, the direction. The bus needs to push the passengers INWARD to accelerate them.

What happens to the gravitational force between two objects reduced?

If the distance between two objects is increased, the gravitational force between them is reduced. This is because gravitational force decreases with distance following the inverse square law, which states that the force is inversely proportional to the square of the distance between the objects.

How can gravity cause plates to move?

Gravity can cause the plates of Earth's crust to move through the process of plate tectonics. The force of gravity acting on the dense oceanic plates causes them to sink into the mantle at subduction zones, while the less dense continental plates can be pushed apart or pulled together along plate boundaries. This movement leads to the formation of features like mountains, earthquakes, and volcanic activity.

When an object is thrown up the force of gravity?

When an object is thrown up, the force of gravity acts on it in the opposite direction to its motion. This force causes the object to slow down and eventually come to a stop before falling back to the ground.

What is it called when object changes when the pull of gravity changes?

Not quite sure what you mean; the pull of gravity will only change if either (a) the mass of either of the two interacting objects changes, or (b) the distance changes.

What is the net force of gravity?

The net force of gravity is the overall force exerted on an object due to gravity, taking into account any other forces acting on the object. It is typically calculated using the formula F = G(Mm/r^2), where F is the force, G is the gravitational constant, M and m are the masses of the two objects, and r is the distance between them.

What is a pull of gravity on a object?

The pull of gravity on any given object is of course the objects weight. The acceleration an object undergoes while falling due to gravity's pull is approximately 9.8 m/s/s. (meters per second per second)

How does gravity affect mousetrap cars?

Gravity plays a significant role in mousetrap cars by providing the force necessary to move the vehicle forward. When the mousetrap is released, the potential energy stored in the spring is converted to kinetic energy, which powers the car forward. Gravity helps the car maintain traction with the ground, enabling it to move efficiently and steadily.

What is the first step to finding a triangles center of gravity?

The first step to finding a triangle's center of gravity is to calculate the average of the x-coordinates and y-coordinates of the triangle's vertices. This will give you the coordinates of the centroid, which is the point where the center of gravity lies.

How much does the earth's gravity cause on an object to accelerate?

Assuming other forces, and mainly air resistance, can be ignored: about 9.8 meters per second squared. This means the same as 9.8 (meters/second) / second; so, every second, the velocity will change by 9.8 meters per second.

Is friction caused by gravity?

No, friction is not caused by gravity. Friction is a force that opposes motion when two surfaces are in contact and moving relative to each other. Gravity is a force that pulls objects toward each other due to their mass.

Explain why we do not sink into the earth although gravity is pushing us down?

We do not sink into the Earth because the ground beneath us exerts an equal and opposite force, called the normal force, that counteracts gravity. This balance of forces keeps us from sinking further into the Earth's surface.

What causes the fluid to move against gravity in the osmometer?

The fluid moves against gravity in an osmometer due to the process of osmosis. Osmosis is the movement of water across a semi-permeable membrane from regions of low solute concentration to regions of high solute concentration, which generates a pressure that pushes the fluid up against gravity inside the osmometer tube.

What can gravity destroy?

Gravity itself does not destroy things, but it can cause objects to fall or collide with each other, leading to damage or destruction. For example, gravity can cause landslides, rockfalls, or buildings to collapse if they are not structurally sound.