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A manufacturer of light bulbs advertises that its 55-W bulb, which produces 800.0 lm of light output, gives almost the similar light as a 60.0-W bulb with an energy savings.
The 60.0-W bulb produces 840.0 lm.
a. Which bulb most efficiently changes electric energy to light?
As per the most established theory it is because of the rotation of the earth where by the several charged ions there in the molten state in the core of the earth rotate and consti
If a ring were constructed as knid of a space station. How fast must a 50.0-m-radius ring rotate to simulate Earth's gravity?
When the two simple harmonic motions have the same periodic time but different amplitude and a phase dissimilarity = ∏/2: The resultant curve may be attained graphically as abov
Visible Radiation (Waves): Visible waves have a wavelength range among 400 and 700 nanometre.
objects of the experement
A solenoid is a coil wound into a tightly packed helix. In physics, the term solenoid shows a long, thin loop of wire, often wrapped over a metallic core, which makes a magnetic f
Total height of the gymnast just before falling back down is=(2+.3)=2.3m Energy gained at that point = m*g*h(m=mass, g=gravitational force, h=height) =55*9.8*2.3=1239.7 J
The Szilard-Chalmers Reaction
Stopping Distance of a Hot Wheels Car While the Hot Wheels car collides along with the box and skids to a stop, external forces do an important amount of work upon the car. The
INSTANTANEOUS VELOCITY: The velocity of a body at a certain instant of time is known as instantaneous velocity.
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