Answer:
The change in height of the mercury is approximately 2.981 cm
Explanation:
Recall that the formula for thermal expansion in volume is:
from which we solved for the change in volume 
due to a given change in temperature 
We can estimate the initial volume of the mercury in the spherical bulb of diameter 0.24 cm ( radius R = 0.12 cm) using the formula for the volume of a sphere:
Therefore, the change in volume with a change in temperature of 36°C becomes:
Now, we can use this difference in volume, to estimate the height of the cylinder of mercury with diameter 0.0045 cm (radius r= 0.00225 cm):
Answer:
1. S = d/t S = speed D = distance traveled T= time elapsed
Explanation:
i can answer more in a minute sorry!!
Explanation:
It is known that the relation between electric field and potential is as follows.
E = 
And, formula to calculate the capacitance is as follows.
C = 
= 
= 
F
Hence, energy stored in a capacitor is as follows.
W = 
V = 
E = 
= 
= 
Thus, we can conclude that electric field strength E inside the capacitor is .
Answer : The storm is 2.401 km far away from the place where Johnny is playing baseball with his friends.
Explanation:
Time taken by the sound wave of lightening to reach the ear of Johnny:7 s
Approximate Speed of the sound in air = 343 m/s
The storm is 2.401 km far away from the place where Johnny is playing baseball with his friends.
