Energy Aid

kinetic energy and the work energy theroem?

A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.10*10^5 N. In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 3.70 * 10^7 J at lift-off. What is the work done on the jet by the catapult?

Assuming that the thrust is constant, the work done by the engine is just

Wengine = (2.1E5 N) * 87 m

The final KE is 3.7E7 J. This energy is provided by the work of the engine plus the work in the catapult, so

Wengine + Wcatapult = KE

solve for Wcatapult and that’s your answer. Not sure why you posted this question under Green stuff.

Can Wind Aid Energy Crisis?

Riddex Plus $7.00 Riddex Plus turns your home’s wiring into a pest repellent force-field. Simply plug Riddex into any socket and it will send out electrical pulses that’ll rid your home of almost any pest. Perfect for: Rats, Mice, Cockroaches, and Insects Includes a built-in night light and features a patented digital pulse technology. For household/residential use only. 110V outlets only….

Sentry HC WormX Plus Dog Dewormer (Round/Hook/Tapeworm) Dog Sentry HC WormX Plus Small Dog (Round/Hook/Tapeworm) 2ct…

Denosyl for Dogs over 35lbs, 425mg, 30 Count $61.95 For Large DogsS-AdenosylmethionineWhat is Denosyl?Denosyl is an anti-oxident that has been shown to increase hepatic Glutathione levels in the liver of dogs and cats. Denosyl’s activity goes far beyond just increasing Glutathione levels. It has been shown to protect liver cells from cell death and may be useful in cell repair and healing.Denosyl is recommended to improve hepatic glutathione levels…

Nova-Universe Within Time Life Video [VHS] $19.95 NOVA takes viewers on an incredible voyage into the microworld of the human body to explore The Universe Within. Breathtaking sports photography captures amazing athletes in action – but the real action happens inside, revealed by microphotography that is in the style of NOVA’s classic documentary of human development, The Miracle of Life. The program covers three incredible team efforts: the coor…

Datrex 2400 Emergency Food Bar – Case of 30 $105.00 With a shelf-life of 5 full years, our Emergency Rations are simply the best source of emergency nutrition available. Unlike MRE’s, which are high in sodium and only suitable for use by those with an extremely large pure water supply, our rations are low in sodium, balanced with our Emergency Water Pouches to provide full nutrition and energy 24 hours a day without dehydrating the consumer. Lightw…

Verilux Original Natural Spectrum Deluxe Desk Lamp Original Natural Spectrum® Energy-Saving Desk Lamp. The Original Natural Spectrum Desk Lamp utilizes over 50 years of research expertise to create a versatile and practical lamp. Verilux Parabolic Grid Diffuser eliminates glare and gives colors vibrancy. Flicker Elimination Technology reduces fatigue, eyestrain and headaches. A flexible gooseneck and 2 levels of illumination place indoor daylight…

Datrex 3600 Emergency Food Bar – Case of 20 $91.99 With a shelf-life of 5 full years, our Emergency Rations are simply the best source of emergency nutrition available. Unlike MRE’s, which are high in sodium and only suitable for use by those with an extremely large pure water supply, our rations are low in sodium, balanced with our Emergency Water Pouches to provide full nutrition and energy 24 hours a day without dehydrating the consumer. Lightw…

EARTH AID: Water Conservation $5.25 Studio: V.i.e.w. Inc. Release Date: 04/03/2007 Run time: 20 minutes…

EARTH AID: Recycling $6.98 EARTH AID:RECYCLING – DVD Movie…

Energy Medicine: Basic 5-Day Training $295.00 You increase your vitality, effectiveness, and joy in life by keeping your energies balanced and humming! This class will show you how. You will also learn how you can overcome health problems by shifting stagnant, blocked or scrambled energies. This class will be fun, spiritually uplifting, and it will offer a wealth of useful tools. You will learn to: Keep yourself healthy and resilient w…