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sineoko [7]
3 years ago
7

A(n) _______ is a point level measuring system consisting of a circuit of two or more probes or electrodes, or an electrode and

the vessel wall where the material in the vessel completes the circuit as the level rises in the vessel.
Physics
1 answer:
Digiron [165]3 years ago
6 0

Answer:

Conductivity probe

Explanation:

The Conductivity Probe consists of two electrodes(also referred to as probes)or an electrode and a wall vessel where the material in the vessel completes the circuit as the level rises in the vessel.

It is used in measuring solution conductivity or total ionic concentration of aqueous samples.

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An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 2.00 mm. If a
ValentinkaMS [17]

Answer:

a. 11.5kv/m

b.102nC/m^2

c.3.363pF

d. 77.3pC

Explanation:

Data given

area=7.60cm^{2}\\ distance,d=2mm\\voltage,v=23v

to calculate the electric field, we use the equation below

V=Ed

where v=voltage, d= distance and E=electric field.

Hence we have

E=v/d\\E=\frac{23}{2*10^{-3}} \\E=11.5*10^{3} v/m\\E=11.5Kv/m

b.the expression for the charge density is expressed as

σ=ξE

where ξ is the permitivity of air with a value of 8.85*10^-12C^2/N.m^2

If we insert the values we have

8.85*10^{-12} *11500\\1.02*10^{-7}C/m^{2}  \\102nC/m^{2}

c.

from the expression for the capacitance

C=eA/d

if we substitute values we arrive at

C=\frac{8.85*10^{-12}*7.6*10^{-4}}{2*10^{-3} } \\C=\frac{6.726*10^{-15} }{2*10^{-3} } \\C=3.363*10^{-12}F\\C=3.363pF

d. To calculate the charge on each plate, we use the formula below

Q=CV\\Q=23*3.363*10^{-12}\\ Q=7.73*10^{-12}\\ Q=77.3pC

8 0
3 years ago
Question 3 (1 point)
IgorLugansk [536]

Answer:

(X - 25)/Y

Explanation:

Change in velocity = X - 25

Time elapsed = Y

Acceleration = Change in velocity/Time = (X - 25)/Y

4 0
2 years ago
To understand length contraction and time dilation. An inertial frame of reference is one in which Newton's laws hold. Any frame
irina1246 [14]

Answer:

l = l0 ( 1 - u^2/v^2) ^0.5

Explanation:

This is the equation of lenght contraction of special relativity

8 0
3 years ago
Describe how a mold fossil is related to a cast fossil.
irina [24]
A mold fossil is a 3D example of an object, while a mold fills up with a sediment like mud. The mold fossil is related to the cast fossil because both can hold an organism or part of an organism.
6 0
3 years ago
Which of these is the best method to estimate the speed at which a star is moving away from Earth?
Allushta [10]
The best and most correct answer among the choices provided by your question is the first choice or letter A.

<span>The best method to estimate the speed at which a star is moving away from Earth is to measure the star's red shift.</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
8 0
2 years ago
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