## What is MGH in physics?

The formula for potential energy depends on the force acting on the two objects. For the gravitational force the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.

## How do you calculate EP physics?

Potential energy = mass x gravity x height.

## What is the full form of MGH?

MGH Massachusetts General Hospital Medical » Hospitals — and more…
MGH Massachusetts General Miscellaneous » Unclassified
MGH Mathematische Gesellschaft in Hamburg Academic & Science » Societies
MGH Mass General Hospital Medical » Hospitals
MGH Montreal General Hospital Medical » Hospitals

## Does work equal MGH?

Work is the energy transferred into or out of a system through the action of a force. Work done against gravity can be found using the equation Work equals Force times height or W = Fh. Since F = mg we can use the equation W = mgh. (m = mass, g = gravity, or 9.81 m/s² and h = height).

## Is gravitational potential or kinetic energy?

Gravitational energy or gravitational potential energy is the potential energy a massive object has in relation to another massive object due to gravity. It is the potential energy associated with the gravitational field, which is released (converted into kinetic energy) when the objects fall towards each other.

## What are 2 examples of gravitational energy?

Examples of Gravitational Potential Energy

• A raised weight.
• Water that is behind a dam.
• A car that is parked at the top of a hill.
• A yoyo before it is released.
• River water at the top of a waterfall.
• A book on a table before it falls.
• A child at the top of a slide.
• Ripe fruit before it falls.

## Why is potential energy negative?

Gravitational potential energy is negative at the surface of Earth, because work is done by the gravitational field in bringing a mass from infinity i.e work has to be done on a body, if it is taken away from the gravitational field of the earth. Thus, potential energy is negative.

## Why is GPE 0 infinity?

At infinity, both the energies are zero. That is, the sum of potential and kinetic energies remain constant. When the object was on the Earth’s surface, its g.p.e. was negative. When something lifted it off the surface to take it to infinity, it did work on the object, increasing its g.p.e. to 0.

## Is it possible to have a negative potential energy?

The potential energy of a system can be negative because its value is relative to a defined point.

## Can PE of a body be negative?

Yes, it can be negative, when forces involved are attractive. …

## Can you have negative work?

Work can be either positive or negative: if the force has a component in the same direction as the displacement of the object, the force is doing positive work. If the force has a component in the direction opposite to the displacement, the force does negative work.

## What is negative potential energy?

A negative potential energy means that work must be done against the electric field in moving the charges apart!

## Is spring force negative?

The spring force is called a restoring force because the force exerted by the spring is always in the opposite direction to the displacement. This is why there is a negative sign in the Hooke’s law equation.

## Why is force of spring negative?

When the spring is being stretched or shortened, the spring force acting on the mass is in a direction that is opposite to the direction of the displacement of the mass and so the work done by it is negative.

## Is spring force ever 0?

1 Answer. Aritra G. When the particle is at the mean/equilibrium position the force on it (that is linearly proportional to the displacement from mean position) vanishes since the displacement at that position is zero.

## Why is hookes Law negative?

The force exerted by a spring is called a restoring force; it always acts to restore the spring toward equilibrium. In Hooke’s law, the negative sign on the spring’s force means that the force exerted by the spring opposes the spring’s displacement.

## Why is there a negative in F =- KX?

The minus or negative sign is there in F= -kx by convention. According to Hooke’s law the restoring force F is proportional to the displacement x. The coordinate of displacement x is negative when the spring is compressed, zero when the spring is of the natural length, and x is positive when the spring is extended.

The negative sign means the spring’s restoring force is opposite the stretch direction. Just know that the negative sign simply denotes the force direction is opposite the stretch (or compression).

## What is the unit of K in Hooke’s Law?

k is a constant called the rate or spring constant (in SI units: N/m or kg/s2).

## What is the limit of proportionality?

The limit of proportionality refers to the point beyond which Hooke’s law is no longer true when stretching a material. When an elastic object is stretched beyond its limit of proportionality, the object does not return to its original length when the force is removed.

## Where is Hooke’s law used?

In addition to governing the behavior of springs, Hooke’s Law also applies in many other situations where an elastic body is deformed. These can include anything from inflating a balloon and pulling on a rubber band to measuring the amount of wind force is needed to make a tall building bend and sway.

## How do you find k in Hooke’s Law?

W = kx. W is the weight of the added mass. Therefore, the spring constant k is the slope of the straight line W versus x plot. Weight is mass times the acceleration of gravity or W = mg where g is about 980 cm/sec2.

## What is the force constant?

In physics, a force constant is another term for a spring constant, as defined by Hooke’s law. It is a proportionality constant, more precisely. The strength constant k is related to a system’s rigidity (or stiffness), the greater the constant of force, the greater the restored force, and the stiffer the system.

## What is Hooke’s Law graph?

The gradient of the graph of force F, (y-axis), and extension e, (x-axis), is equal to the spring constant k. Hooke’s Law is obeyed up to the limit of proportionality. Beyond this point, stretching force and extension are no longer directly proportional and the graph begins to curve.

## What is Hooke’s limit?

Hooke’s law states that the strain of the material is proportional to the applied stress within the elastic limit of that material. When the elastic materials are stretched, the atoms and molecules deform until stress is been applied and when the stress is removed they return to their initial state.

F = ke

## How do you calculate work done?

Calculate the work done moving the other team.

1. work done = force × distance.
2. work done = 1,000 N × 5 m.
3. work done = 5,000 J (or 5 kJ)

## How do you work out ep?

MGH Full Form is Mercy General Hospital

Term Definition Category
MGH Mayo General Hospital Medical
MGH Morehouse General Hospital Medical
MGH Mallow General Hospital Medical
MGH Marion General Hospital Medical

## How do we use kinetic energy in everyday life?

13 Examples of Kinetic Energy in Everyday Life

1. Hydropower Plants. Hydropower plants are places where the generation of electricity takes place with the help of water.
2. Wind Mills. Windmills form one of the good examples of applications of kinetic energy.
3. Moving Car.
4. Bullet From a Gun.
5. Flying Airplane.
6. Walking & Running.
7. Cycling.
8. Rollercoasters.

## Is a fan kinetic energy?

What does the fan do? (The fan’s blades move air around the room. The kinetic energy of the moving blades does work in moving air through the fan blades.) The fan converts electric energy into kinetic energy that does work, and it converts some electric energy into heat.)

## How energy is used in everyday life?

When we talk about residential uses of energy, these are the most basic uses of energy. They include watching television, washing clothes, heating and lighting the home, taking a shower, working from home on your laptop or computer, running appliances and cooking.

## Can we live without energy?

Today, about two billion people in the world — around one in four — live with limited or no access to electricity. 850 million of those, mostly located in rural areas, live completely without electricity.

## How do humans use energy from food?

The human body carries out its main functions by consuming food and turning it into usable energy. Immediate energy is supplied to the body in the form of adenosine triphosphate (ATP). Since ATP is the primary source of energy for every body function, other stored energy is used to replenish ATP.

## Do eggs raise blood sugar?

Eggs are a versatile food and a great source of protein. The American Diabetes Association considers eggs an excellent choice for people with diabetes. That’s primarily because one large egg contains about half a gram of carbohydrates, so it’s thought that they aren’t going to raise your blood sugar.

## How do you remove sugar from your body?

Here are 15 easy ways to lower blood sugar levels naturally:

1. Exercise regularly.
4. Drink water and stay hydrated.
5. Implement portion control.
6. Choose foods with a low glycemic index.
7. Manage stress levels.
8. Monitor your blood sugar levels.

## How can I test my diabetes at home without a machine?

Rub your hands together for a few minutes to stimulate blood circulation and make the process less painful. Keep in mind that you don’t have to use the same finger each time. If one finger becomes too sensitive, use a different finger. Or if you use the same finger, prick in a different spot.

## What is a normal sugar level?

A blood sugar level less than 140 mg/dL (7.8 mmol/L) is normal. A reading of more than 200 mg/dL (11.1 mmol/L) after two hours indicates diabetes. A reading between 140 and 199 mg/dL (7.8 mmol/L and 11.0 mmol/L) indicates prediabetes.

## Is 80 blood sugar normal?

For most people without diabetes, blood sugar levels before meals hover around 70 to 80 mg/dL. For some people, 60 is normal; for others, 90.

## Is 17 a high blood sugar level?

Moderate to severe high blood sugar If your blood sugar levels are consistently high (usually above 20 mmol/L in adults and above 14 mmol/L in children), you may have moderate to severe symptoms of high blood sugar.

## What do I eat to lower my blood sugar?

Which foods lower blood sugar?

• Fruits.
• Sweet potatoes and yams.
• Oatmeal and oat bran.
• Nuts.
• Legumes.
• Garlic.
• Cold-water fish.

## What is the best diet to control blood sugar?

Here are seven foods that Powers says can help keep your blood sugar in check and make you happy and healthy to boot.

1. Raw, Cooked, or Roasted Vegetables. These add color, flavor, and texture to a meal.
2. Greens.
3. Flavorful, Low-calorie Drinks.
4. Melon or Berries.
5. Whole-grain, Higher-fiber Foods.
6. A Little Fat.
7. Protein.

## How many cups of green tea should you drink per day?

Regularly drinking green tea can help you lose weight and reduce your risk of several diseases, including diabetes, heart disease and cancer. Drinking three to five cups of green tea per day seems to be optimal to reap the most health benefits.

## Is green tea good for skin?

Green tea’s anti-inflammatory properties can help reduce skin irritation, skin redness, and swelling. Applying green tea to your skin can soothe minor cuts and sunburn, too. Due to its anti-inflammatory properties, studies have also found topical green tea to be an effective remedy for many dermatological conditions.

## How many cups of green tea should I drink to lose weight?

Drinking between 2 and 3 cups of hot green tea throughout the day should be sufficient for supplementing weight loss. The exact amount will vary from person to person, depending on how much caffeine they consume and their natural metabolism.