Freshwater and seawater flowing in parallel horizontal pipelines. Are connected to each other by a double U-tube manometer, as shown in the figure. Determine the pressure difference
between the two pipelines. Take the density of seawater at that location to be ρ = 1,035 kg/m3
,
density of mercury ρ = 13,600 kg/m3 and density of air ρ = 1.23 kg/m3
. Can the air column be
igonred in the analysis

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

What is the relationship between globular clusters and the milky way?

Intro: a solid ball of radius rb has a uniform charge density ρ. part a: what is the magnitude of the electric field e(r) at a distance r> rb from the center of the ball? express your answer in terms of ρ, rb, r, and ϵ0. part b: what is the magnitude of the electric field e(r) at a distance r express your answer in terms of ρ, rb, r, and ϵ0. part c: let e(r) represent the electric field due to the charged ball throughout all of space. which of the following statements about the electric field are true? check all that apply. e(0) = 0 e(rb)=0 limr→∞e(r)=0 the maximum electric field occurs when r=0 the maximum electric field occurs when r=rb the maximum electric field occurs as r→∞.