1) In machines, efficiency reduces due to friction has energy may be lost as heat. 2) When one falls and slides over rough surface like cement, then the injury caused is more.
Answer:
t=0 is t
t=8= 8t
Explanation:
because 0 is means "nothing" so that's why t=0 is t
A cold front phenomenon characterized by cold air pushing into much warmer air mass. The cold air being more dense than warm air is able to effectively push it forward usually at a fast pace.
When the cold front is passing through an area, there are gusts of wind which usually sweep right across the ground and raise the dust in dry areas, there is a sudden drop in temperature with moderate to heavy rain sometimes with thunder, lightning and hail.
The warm air moving ahead of the cold front produces cumulus or cumulonimbus clouds with thunderstorms as atmospheric pressure falls then slowly rises again after the cold front has passed.
Temperatures are noticeably cooler in a given area after a cold front has passed, which is followed by replacement of cumulus clouds by stratus and stratocumulus clouds and clear skies.
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The application of a sufficiently strong magnetic field to a
superconductor will, in general, destroy the superconducting state. Two
mechanisms are responsible for this. The first is the Zeeman effect1, 2,
which breaks apart the paired electrons if they are in a spin-singlet
(but not a spin-triplet) state. The second is the so-called ‘orbital’
effect, whereby the vortices penetrate into the superconductors and the
energy gain due to the formation of the paired electrons is lost3. For the case of layered, two-dimensional superconductors, such as the high-Tc copper oxides, the orbital effect is reduced when the applied magnetic field is parallel to the conducting layers4.
Here we report resistance and magnetic-torque experiments on single
crystals of the quasi-two-dimensional organic conductor λ-(BETS)2FeCl4, where BETS is.
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