It is "required" in the sense that an electron leaving a photo-electric metal "must" have a stopping potential. However, measuring the stopping potential -- the size of the voltage that will perfectly match the energy of such an electron -- gives results that can only be explained by the existence of photons.
1. hv=hvo + 1/2mvo2here h= plank's constantv= cut off wavelengthvo=cut off frequencym= massvo=stopping potential
Yes, friction affects stopping distance. The greater the friction the lower the stopping distance; the lower the friction the greater the stopping distance.
Stopping Distance = about 75 feet.
The steeper the slope, the longer the stopping distance is.
The matter in a spring is in a form that wants to bend back into shape when bent. This is called elasticity. When you compress the spring, it wants to spread itself out again, but because you won't let it, it has that energy stored inside of it, waiting to be used. This kind of energy is called potentail energy. Potential energy can exist for two main reasons... if something is above the ground and something is stopping it from falling, it will have potential enrgy. The energy it had to fall is waiting to be used as movement or kinetic energy. This is gravitational potential energy. The spring had potential energy of postion, so the position it was in had potential energy. When you release he spring, it will let out the enrg as movement. The farther you compress the spring, the more energy it will have.
65% - 75%
65 to 70 % depending on the type of pad material (late models only) Frt brakes are for stopping, rear brakes are for slowing.
you're a tool. dependant upon inertia, stopping surface, braking potential, weight. lots of factors. a car may have ABS or not. this affects the final distance
It doesn't, from the equation E = h*f (E is energy, h is Planck's constant, f is frequency) you can clearly see that energy is a function of frequency, not amplitude (intensity). Therefore, it doesn't even matter what the relationship between stopping potential and energy is, because it will only depend on frequency, which is sufficient knowledge to answer this question.
Generally not. If ringing in the ears has occurred at the same time as stopping smoking, this is more likely to be concidental than not.
The stopping distance is increased on wet roads.There was no stopping the killer.The plane will be stopping at Dubai airport for refuelling.
1. hv=hvo + 1/2mvo2here h= plank's constantv= cut off wavelengthvo=cut off frequencym= massvo=stopping potential
they are not the same. kinetic energy is energe that an object has due to its motion. potential energy is stored and held in the readiness. for example kinetic energy would be like a bowling ball knocking over bowling pins. unlike kinetic energy, which is the energy of motion, potential energy is stored and may be used later on like a car stopping at a red light.
Yes, friction affects stopping distance. The greater the friction the lower the stopping distance; the lower the friction the greater the stopping distance.
between 60 - 75%. Depends on how much weight is biased toward the front wheel and how much brake pressure is applied.
"to stop" is "parar"... if you want to say "I am stopping" it is "estoy parando." "we are stopping" is "estamos parando"
The stopping voltage where the current goes to zero is proportional to the KE of the electron. Simply detecting a photocurrent doesn't tell you the electron's energy. You could try and find the photon energy where the PEE just barely works, but what if you don't have a continuously-tunable light source? (which most people don't). But a retarding potential is easily tuned.