Gravity

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.

Assuming the rock is in free fall, it will accelerate due to gravity at approximately 32 feet per second squared. After falling 10,000 feet, it will reach a speed of roughly 160 ft/s (or 109 mph) just before hitting the ground, neglecting air resistance.

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.

You can place the object on the fulcrum of a seesaw to achieve physical balance. This is because the fulcrum is the point where the object's weight is evenly distributed on both sides of the seesaw, resulting in equilibrium.

The force depends on the mass of the object. That's why tall fat people weigh more

than short skinny people.

Whatever the mass of the object happens to be, the forces of gravity between the

Earth and the object are 9.8 newtons (about 2.205 pounds) per kilogram of mass,

in both directions.

Gravity plays a crucial role in the operation of roller coasters by providing the necessary force to propel the cars along the track. When a coaster climbs to a high point, gravitational potential energy is stored, which converts to kinetic energy as the train descends. This energy exchange allows the coaster to gain speed and navigate loops and turns. Ultimately, gravity ensures that the ride is thrilling while keeping it safe within the design of the track.

'Gravoty' is an attraction between any two or more objects, be those objects atoms, protons or planets. stars andything in between.

The planets have gravity , the Sun has gravity. They are attracted to each other. So why do they not 'crash' into each other? Because, the planets are moving with an acceleration. This acceleration together with the planets mass creates are force (F = ma). This force is balanced by the Sun's force of gravity. So the forces are in balance, so the planets orbit the Sun and not fall into the Sun.

The oceans on Earth, being liquid, will be attracted to the Moon by Lunar gravity. So which side of the Earth the Moon is on , will be the 'High Tide'. This is balabnced 'Like a wheel balance', by a counter High Tide on the opposite side of the Earth, from the Moon.

Without gravity, none of the stars or planets would maintain their forms. Gravity allows the Sun to maintain its energy generation while remaining as a single mass. Gravity allows the Earth to hold its atmosphere.

Indeed, gravity is the force that forms stars and planets, although the trigger that begins the process is still unclear.

Friend Hilmar Zonneveld is perfectly and absolutely right. Weight, being a vector, of an object will always act through the center of gravity. Also definition of centre of gravity confirms that whatever be the position the weight would always act through a point known to be center of gravity

It isn't, necessarily. But the force of gravity is constant, whereas the force

of air resistance depends on how fast you're moving through the air. So when

you begin to fall, gravity is stronger, and it makes you fall faster and faster.

But as your speed increases, so does the force of air resistance, and eventually,

the force of air resistance builds up to be equal to the force of gravity. At that

point, you keeep falling, but your speed doesn't grow any more.

Oh, what a fantastic question! Now, you see, every object in our world, big or small, has a tiny amount of gravity. It's like a soft hug that everything shares, bringing a sense of connection to everything in our beautiful universe. Keep exploring curiosities like this, my friend – you're on a wonderful journey of discovery.

Yes, asteroids have gravity, but it is much weaker than the gravity on Earth. This is because asteroids are much smaller and less massive than Earth, so their gravitational pull is significantly lower.

Well, friend, gravity is what pulls objects downward towards the Earth's center. It's like a gentle hug from Mother Nature keeping us feeling grounded and connected to this beautiful planet. Just remember to walk lightly and breathe deeply as you go about your day on this wondrous Earth.

Gravity is a force that pulls objects towards the center of the Earth. It influences the push or pull of objects by determining how much they weigh and how they move. Objects with more mass experience a stronger pull of gravity, while objects with less mass experience a weaker pull. This force of gravity affects how objects move and interact with each other on Earth.