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Making Stuff Move: Work, Energy
momentum and kinetic energy
How far should I push it?
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Force, work, energy in bungee jumping
Conservation of Momentum
If you’re in a falling elevator...!
Motorcycle Accident
Calculating Efficiency
How to do Work
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energy and fields
Conserving Energy - Even Acrobats Do It
Conservation of energy in a system
The Vacuum Can...Where will it Move?
Energy - Give and Take
Bowling Homework
Boron in fuel cells
Free Energy for All!
Momentum problem
perpetuum mobile
gravitational energy
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Temperature of a football and distance
If you're in a falling elevator...!
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binding energies in different frames
can magnets do work?
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rotating charges
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light losing energy
radiation pressure
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force and energy
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energy and work for satellite
Is there a most effective force?
Newton's 3rd law and rockets
energy and mv^2/2
work in different frames
Self-powered motor
Why fill bottle rocket 1/3?
energy to hold something up?
Is an electric heater a machine?
Why climb Mount Everest?
Is car mass or track height more important for a good roller coaster?
Why do 'perpetual motion' toys need batteries?
A problem in conservation of momentum
conservation of momentum and electromagnetism
conservation of energy in springs
How could you change your direction in space?
Is gravity-powered light possible?
Kicking a ball
Converting between kinetic and thermal energy
rockets and energy conservation
Is It Possible For Gasoline To Combust Without A Spark?
conservation of momentum
Kinetice energy of a fly versus an automobile
How can an object come to rest without friction?
Does the Perendev motor work?
What is the engine efficiency?
magnets and work on current loops
switchable binding
what happens to energy stored in spring
is linear momentum converted to angular momentum?
formula for momentum conservation
what Newton added about gravity
no free energy
Newton's Third Law and Magnetism
hydraulics and energy
photon recoil
where is the effect of the equal opposite reaction?
airplane speed on takeoff
light reflection: energy and momentum conservation
Why is it work to hold a weight straight out from your body?
Transferring forms of energy in vacua?
electromagnetic motors and free energy
Can transformers make power?
Is water a fuel?
Energy from magnets?
Acceleration and de-acceleration rates of cars
relativity and Newton's third law
balsa wood fins for bottle rockets
Is electron-positron repulsion possible?
Motorcycle Car Collision
Colliding Comets!
The force in bungee jumping.
Escape Velocity
why is energy conserved?
Kinetic energy of moving and rotating objects
speed of hit ball
momentum kick from flashlight
why is momentum conserved?
how much to fill bottle rocket?
How Acceleration Relates to Kinetic Energy
momentum, force, energy
Energy release of 2011 Japanese earthquake
fluid circulation from temperature differences.
water as fuel
Momentum is Relative!
Getting hit in the head with a rock
energy reuse?
power
energy conservation in cosmology
origins of light
human power
what pushes rockets
magnetic motions
electricity source?
Hole through the Earth
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interference and conservation
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Perpetual motion?
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electron perpetual motion?
How to get to shore using fish
car acceleration
conserving energy
magnet drive?
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Rolling cans
perpetual motion
canned attraction?
moon work
heating via friction
billion-person jump
alpha particle scattering
perpetual motion?
magnetic work
water as fuel?
alternative magnetic energy?
tennis racquet speed
Powering a clock with the weather
momentum and kinetic energy
