<span>The smallest nonzero current depends on the maximum time T you are willing to wait. The smallest current would be I = e/T. After time T, one electron is observed to pass through the given area.</span>
Answer:
-540 kJ
Explanation:
P = Pressure which is applied to the piston = 180 kPa
= Final volume = 2 m³
= Initial volume = 5 m³
Work done is given by
The work required to compress helium is -540 kJ
Answer:
B.1.6 N*s
Explanation:
According to the principle of conservation of momentum, we have:
The final mass is obtained adding the masses of the two cars since they stick together after the collision. So, 
. Recall that the 0.4 kg cart collides with the stationary 0.8-kg cart. So 
The magnitude of the impulse is defined as the mass multiplied by the change in the speed:
Answer:
No change in velocity of photons...
Explanation:
The reason speed of light is constant is that is doesn't depend upon intensity of light as produced by the source. This is the main reason why the wave function (psi)* in Einstein's Photoelectric experiment remains unaffected by intensity. The monochromatic beam of light will glow lower and lower as the power decreases and eventually vanishes from visible range as the emission from the power source has been stopped...
