Answer:
Explanation:
18 kW = 18000 J /s
60% of 18kW = 10800 J/s
Latent heat of evaporation of water
= 2260 x 10³ J / kg
kg of water being evaporated per second
= 10800 / 2260 x 10³ kg /s
= 4.7787 x 10⁻³ kg / s
= 4.78 gm / s .
Answer:
Total resistance of the circuit is 270.4 ohm
Explanation:
We are given that:
resistance of wire = 0.4 ohm
resistance of bulb = 150 ohm
resistance of rheostat = 120 ohm
We are also given that these components are connected in series. This means that the total resistance is summation of all the series components.
Therefore
Total resistance = 0.4 + 150 + 120 = 270.4 ohm
Hope this helps :)
I think the correct answer from the choices listed above is option C. The research of social psychologist vincent hsu determined that americans tend to fulfill their ideal of self-reliance through <span> developing personal ideals. Hope this answers the question.</span>
For Newton's second law, the force applied to an object is equal to the product between the mass of the object and its acceleration:
Rewriting the acceleration as the increment of velocity
in a time
:
, F becomes
But given the definition of momentum:
, then
represents the momentum change. So we can rewrite F as
And re-arranging the formula we can calculate the value of the change in momentum:
The radioactive isotope that would take the least amount of time to become stable is rubidium-91. This is because this isotope is the most stable compared to the rest. This was determined by subtracting its atomic mass by its atomic number. The isotope with the least number of difference is the most stable, while the one with the greatest difference is the most unstable.
Difference:
Rubidium: 54 (most stable)
Iodine: 78
Cesium: 80
Uranium: 146 (least stable)
