The density of mercury is 13.5 times greater than the density of water. if you were to build a barometer that used water instead
1 answer:
Answer:
Height of water column 10.26 m
Explanation:
Given data;
Mercury density is 13.5 times higher than water density.
Mercury barometer 76 cm or 29.92 inches
we know that the mercury column is balanced by the pressure of air in mercury barometer
we know also standard atmospheric is equivalent to 29.92 inches of mercury
Height of water column must be
You might be interested in
Here As we can see the figure that the end of the rope is pulled by some force F
Now as we can see that Piano is connected by a pulley which is passing over the pulley so effectively net force on the piano upwards will be 2F as it is connected by 2 ropes by the pulley
Now for constant velocity of the piano we will say
since velocity is constant so acceleration must be ZERO
so here we have
as we know here that
mg = 1000 N
so we will have
so here force must be 500 N
The strength of the electric field on the point charge at this distance will be 4000 V/m.
<h3>What is the strength of the electric field?</h3>
The strength of the electric field is the ratio of electric force per unit charge.
The given data in the problem is;
Qis the unit charge = 4.0 × 10⁻⁶ C
E is the strength of the electric field
R is the distance from point charge = 3 m
The strength of the electric field is;
Hence, the strength of the electric field on the point charge at this distance will be 4000 V/m.
To learn more about the strength of the electric field refer to the link;
#SPJ1