The temperature at which a liquid's vapor pressure is equal to the liquid's surrounding pressure, which motivate liquid to transform into vapor is understood as Boiling Point. While evaporization is observed on a liquid's surface as it transitions into the gas phase. The accompanying gas must not be saturated with the content which evaporates.
The evaporation and boiling point have inverse relationship, which showcase that more is the boiling point of any liquid, thus lesser will be its rate of evaporation. A substance with powerful inter-molecular bonds requires more energy to crack these bonds, and is therefore defined as high boiling point liquid or non-volatile as it is not feasible to evaporate spontaneously, as with rubbing alcohol.
The nucleus is always positive since thats where the protons are located and the neutrons have no charge....
Answer:
Difference in height = 7.5 cm
Explanation:
We are given;.
Height of ethyl alcohol;h2 = 20 cm = 0.2 m
Density of glycerin: ρ1 = 1260 kg/m³
Density of ethyl alcohol; ρ2 = 790 kg/m³
To get the difference in height, the pressure at the top of the open end must be equal to the pressure at the point where the liquids do not mix since both points will be at different levels after the pouring.
Thus;
P1 = P2
Formula for pressure is; P = ρgh
Thus;
ρ1 × g × h1 = ρ2 × g × h2
g will cancel out to give;
ρ1 × h1 = ρ2× h2
Making h1 the subject, we have;
h1 = (ρ2× h2)/ρ1
h1 = (790 × 0.2)/1260
h1 = 0.125 m
Difference in height will be;
Δh = h2 - h1
Δh = 0.2 - 0.125
Δh = 0.075 m = 7.5 cm
Answer:2 m right
Explanation:
Given
First child is sitting 1 m left from Pivot point
Mass of second child is half of first
Let mass of first child be m
Second child
In order to balance see saw torque must be zero about pivot
x=2 m right from pivot point
Answer:
Explanation:
The relationship between angular acceleration α and torque τ is given by :
Here,
is the moment of inertia. It depends on the mass and the distance from the axis of rotation.
is the angular acceleration
Hence, this is the required solution.