Gravity

An object with a specific gravity greater than 1 will not float in water. Since water has a specific gravity of 1, any material with a specific gravity exceeding this value will sink. For example, metals like lead and gold have specific gravities significantly higher than 1, causing them to sink when placed in water.

The acceleration due to gravity on the surface of the Sun is approximately 274 m/s². This is significantly stronger than Earth's gravity, which is about 9.81 m/s². The Sun's massive size and density contribute to this high gravitational pull, which is essential for maintaining its structure and facilitating processes like nuclear fusion in its core.

as we go far from earths surface the value of g decreases this is because

g is inversely proportional to the value of r^2(which is the distance of the body from the center of the earth.

Sand is denser than feathers. Since a given volume of a denser material has more

mass than the same volume of a less dense material, when you make the masses

the same, the volumes must vary.

Gravity was not invented by a single individual, as it is a fundamental force of nature that has existed since the beginning of the universe. The modern understanding of gravity was developed by Sir Isaac Newton in the 17th century through his law of universal gravitation. Albert Einstein later refined our understanding of gravity with his theory of general relativity in the early 20th century.

Oh, dude, those people are called physicists. They're the ones who study all the cool stuff like why things fall down and why we don't float away into space. So, like, next time you drop your sandwich, just remember there's a physicist out there somewhere analyzing the intricacies of gravity.

To escape Earth's gravity, an object must overcome the force of gravity pulling it down. The force of gravity on Earth is approximately 9.8 m/s^2. To calculate the thrust needed to escape Earth's gravity, you would need to convert the weight of the object from pounds to kilograms (1 pound is approximately 0.4536 kilograms) and then multiply it by the acceleration due to gravity. In this case, if something weighs 1520 pounds, it would weigh approximately 689.5 kilograms, and the thrust needed to escape Earth's gravity would be 6751.1 Newtons (689.5 kg * 9.8 m/s^2).

Gravity erosion, also known as mass wasting, includes various processes where gravity causes the movement of rock and soil downhill. Examples of gravity erosion include landslides, rockfalls, creep, and slumps. Landslides are rapid downslope movements of rock and soil, while rockfalls involve the free fall of detached rocks. Creep is the slow, continuous movement of soil downhill, and slumps are rotational slides where a mass of rock and soil moves along a curved surface.

Well, honey, Neptune's gravity is actually stronger than Earth's gravity. Neptune is a big boy with a lot of mass, so it packs a bigger gravitational punch than our little blue planet. So, if you ever find yourself floating around in space near Neptune, you better hold on tight or you might just float away into the abyss.

The actual gravitational force at the surface of the Earth (about 9.81 m/sec/sec) will vary as the distance from the Earth's center varies, and also due to variations in the density of the rock layers under any given location.

To determine the height of the building when a 20 kg object dropped from the top possesses 5000 J of energy, we can use the principle of conservation of energy. The potential energy at the top is converted into kinetic energy at the bottom. The potential energy at the top is given by mgh, where m is the mass (20 kg), g is the acceleration due to gravity (9.8 m/s^2), and h is the height of the building. Setting this equal to the kinetic energy (5000 J), we can solve for h. The height of the building would be approximately 25.5 meters.

Oh, dude, of course Ceres has gravity! It's a dwarf planet in our solar system, not some floating balloon at a birthday party. It's got enough gravity to hold itself together and even has a little bit of an atmosphere. So yeah, Ceres is definitely bringing the gravity to the party.

Earth;s Gravitational Acceleration is 9.8 m/s^(2)

Using the eq'n

a = (u - v)/t

a = 9/8 m/s^(2)

u = initial velocity of 0 m/s (lift off).

v = escape (final velicity)

t = time ( say 5 mins 300 s). (Probabky the time you can see it accelerating into space).

Hence

Algebraically rearranging

at = u - v

v = u - at.

v = 0 - (9.8 * 300 (

v = 9.8 300 = 2940 m/s

or

v = 2940 x 3600 / 1000

NB 3600 sec / hy

NNB 1000 m/ km

Hence

v = 10,500 km /hr.

This is not taking into consideration the mass of the rocket. When mass is included , although mass in reducing because of fuel combustion., a closer value is about 25,000 km/hr.

These are only hypothetical figures, but it gives an idea of the velocity required.

Gravity would affect a hummingbird and an eagle differently due to their size and weight. The hummingbird, being much smaller and lighter, would be more significantly impacted by gravity compared to the larger and heavier eagle. The hummingbird would need to expend more energy to counteract the force of gravity while hovering and flying, whereas the eagle would have an easier time gliding and soaring due to its size and wingspan.

Your mass would remain the same regardless of your location, as it is a measure of the amount of matter in your body. However, your weight would decrease on the moon compared to Earth due to the lower gravitational pull on the moon. This is because weight is a measure of the force of gravity acting on an object's mass.

In the API gravity formula, 141.5 is a constant used to standardize the API gravity scale. It represents the specific gravity of water at 60°F. 131.5 is the specific gravity of the liquid being measured. By subtracting 131.5 from 141.5 and dividing the result by 0.1, you can calculate the API gravity of the liquid.

Mass and inertia are directly related: the greater the mass of an object, the greater its inertia. Inertia is the tendency of an object to resist changes in its state of motion, so a more massive object will require more force to accelerate or decelerate compared to a less massive object.

Well, isn't that a lovely question! When a rock falls from 10,000 feet, it will accelerate due to gravity at a rate of about 32 feet per second squared. The time it takes to fall will depend on various factors like air resistance and the shape of the rock, but on average, it would take around 9-10 seconds to reach the ground. Just imagine the gentle dance of the rock as it makes its way back to the Earth, creating a beautiful moment in time.

By differentiating between mass and weight, you show that you understand

that the answer to the question depends on where you are.

-- On or near Earth, 125 kg of mass weighs about 1225.9 newtons (275.8 pounds).

-- On or near the moon, it weighs about 202.9 newtons (45.6 pounds).

-- On or near Jupiter, it weighs about 3,235.6 newtons (727.4 pounds).

-- On or near Pluto, it weighs about 72.9 newtons (16.4 pounds).

It has different weights in other places.

In physical balance, an object can be placed on a pan that is supported by a pivot point, such as a fulcrum or a center of mass. This allows for equal distribution of weight on both sides of the pan, ensuring stability and equilibrium. The pan must also be level to maintain balance, with the object positioned directly above the pivot point to prevent tipping.

The force with which gravity pulls on objects close to Earth is approximately 9.8 meters per second squared, often rounded to 10 m/s^2 for simplicity. This force is what gives things weight and causes them to fall to the ground when dropped.

A balloon filled with helium or hot air is less dense than the surrounding air, causing it to float. The buoyant force acting on the balloon is greater than the force of gravity pulling it down, allowing it to defy gravity and float upwards. This principle is known as buoyancy, based on Archimedes' principle, which states that an object will float if it is less dense than the fluid it displaces.