Question:

How much energy is needed to lift 40 pounds?

Answer:

I would be unable to tell you because you left out how high you where lifting it, but here is the equation. Energy Required = weight x feet of lift

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Aerospace engineering is the primary branch of engineering concerned with the research, design, development, construction, testing, science and technology of aircraft and spacecraft. It is divided into two major and overlapping branches: aeronautical engineering and astronautical engineering. The former deals with aircraft that operate in Earth's atmosphere, and the latter with spacecraft that operate outside it.

Aerospace engineering deals with the design, construction, and study of the science behind the forces and physical properties of aircraft, rockets, flying craft, and spacecraft. The field also covers their aerodynamic characteristics and behaviors, airfoil, control surfaces, lift, drag, and other properties.

Aerodynamics Physics

Wind power is the conversion of wind energy into a useful form of energy, such as using wind turbines to make electrical power, windmills for mechanical power, windpumps for water pumping or drainage, or sails to propel ships.

Large wind farms consist of hundreds of individual wind turbines which are connected to the electric power transmission network. For new constructions, onshore wind is an inexpensive source of electricity, competitive with or in many places cheaper than fossil fuel plants.]citation needed[ Small onshore wind farms provide electricity to isolated locations. Utility companies increasingly buy surplus electricity produced by small domestic wind turbines. Offshore wind is steadier and stronger than on land, and offshore farms have less visual impact, but construction and maintenance costs are considerably higher.

Force Lift Energy Elevator

Gliding flight is heavier-than-air flight without the use of thrust. It is employed by gliding animals and by aircraft such as gliders. The most common human application of gliding flight is in sport and recreation using aircraft designed for this purpose. However almost all powered aircraft are capable of gliding without engine power. As with sustained flight, gliding generally requires the application of an airfoil, such as the wings on aircraft or birds, or the gliding membrane on gliding possum. However, gliding can be achieved with a flat (uncambered) wing as with a simple paper plane, or even with card-throwing. The term volplaning has been used for this mode of flight.

Most winged aircraft can glide to some extent, but there are several types of aircraft designed to glide:

A patient lift (patient hoist, jack hoist, hydraulic lift) may be either a sling lift (or Hoyer Lift, a brand name) or sit-to-stand lift. This is an assistive device that allows patients in hospitals and nursing homes and those receiving home health care to be transferred between a bed and a chair or other similar resting places, using hydraulic power. Sling lifts are used for patients whose mobility is limited. They could be mobile (or floor) lifts or overhead lifts (suspended from ceiling-mounted or overhead tracks).

The sit-to-stand lift is designed to help patients with some mobility but who lack the strength or muscle control to rise to a standing position from a bed, wheelchair, chair, or commode. They use straps, vests, or belts (as opposed to slings) to make the transition possible.

In journalism, a human interest story is a feature story that discusses a person or people in an emotional way. It presents people and their problems, concerns, or achievements in a way that brings about interest, sympathy or motivation in the reader or viewer.

Human interest stories may be "the story behind the story" about an event, organization, or otherwise faceless historical happening, such as about the life of an individual soldier during wartime, an interview with a survivor of a natural disaster, a random act of kindness or profile of someone known for a career achievement.

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