Answer:
t = 2.26 x 10⁵ s
Explanation:
The energy supplied to the water will be equal to the heat required for the boiling of water:
E = ΔQ
Pt = mL
where,
P = Power = 10 W
t = time = ?
m = mass of water = 1 kg
L = Latent heat of vaporization of water = 2.26 x 10⁶ J/kg
Therefore,
<u>t = 2.26 x 10⁵ s</u>
This time will be less than the actual time taken due to some heat loss during the transmission of this heat energy to the container in which water is held.
Answer:
x-rays
Explanation:
https://quizlet.com/417910083/radiology-flash-cards/
To solve this problem it is necessary to apply the concepts related to Gauss's Law.
Gauss's law establishes that the flow of certain fields through a closed surface is proportional to the magnitude of the sources of that field inside the same surface.
Mathematically it can be expressed as,
Where
A = Surface area of Gaussian surface
Q = Charge enclosed by Gaussian surface
= Permittivity of free space
E = Electric Field
Our values are given as
Therefore replacing at our equation we can find Q,
Therefore the magnitude of the charge is
The law of conservation tells us that no mass is lost. This is true because when wood burns or turns into ash, some of it is escaped as gases like carbon dioxide and water vapor into air . If we calculate the mass of these atmospheric gases that evolved when the wood turned into ash, we would find that the total mass of all these substances including the ash is equal to the log of wood.
In a simple harmonic motion, the maximum speed is given by:
where is the angular frequency and A is the amplitude of the motion, while the maximum acceleration is given by
The problem tells us both the values of the maximum speed, , and the maximum acceleration, , so we can write the following equations:
and the solutions are , .
We are only interested in the angular frequency; in fact, we can find the period of the motion by using the equation: