1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Usimov [2.4K]
3 years ago
14

Glycerin is poured into an open U-shaped tube until the height in both sides is 20 cm. Ethyl alcohol is then poured into one arm

until the height of the alcohol column is 20 cm. The two liquids do not mix. What is the difference in height between the top surface of the glycerin and the top surface of the alcohol? Suppose that the density of glycerin is 1260 kg/m3and the density of alcohol is 790 kg/m3.
Physics
1 answer:
lina2011 [118]3 years ago
4 0

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

You might be interested in
What causes competition among organisms?
dimaraw [331]
Both organisms attempt to use the same limited sources
5 0
3 years ago
Which of these does NOT result in the acceleration of an object?
Zanzabum

I guess the correct answer is the first one.

6 0
3 years ago
Read 2 more answers
What happens if we nuke a city?
nignag [31]
The shadow would subsequently drop the temperature in the city, forcing warmer air to rush in and violently destroy countless buildings. There would also be “black rain,” which would be the radioactive ash and dust that would liquify and pour down on the city and we would all die.
3 0
2 years ago
Read 2 more answers
Kristen has two identical sized cubes, one is lead (Pb) and one is copper (Cu). Kristen is determining the density of each cube.
natta225 [31]

Answer:

volume

Explanation:

Identical size means volume will be the same in each calculation of

density =   mass / <u>volume</u>

3 0
2 years ago
A wave traveling in water has a frequency of 250 Hz and a wavelength of 6.0 N. What is the speed of the wave?
enyata [817]
The speed of a wave is determined by the product of the frequency and the wavelength; we already have the wavelength and the frequency, so all we need to do is multiply them by each other and use our proper unit of measure.

Velocity (speed) = Frequency x Wavelength
V = 250 x 6
V = 1500

Your answer is 1500 m/s.

I hope this helps!
5 0
3 years ago
Other questions:
  • Strength of the electric force imagine two 1.0-g bags of protons, one at the earth's north pole and the other at the south pole.
    14·1 answer
  • Which items in this image are electrically conductive? Check all that apply.
    6·1 answer
  • Describe how a battery works
    7·1 answer
  • How do you determine if a charged comb is positively charged or negatively charged. Suppose it is positively charged, it will at
    5·1 answer
  • Push-and-pull factors contribute to _____.<br> economics<br> politics<br> migration<br> education
    15·1 answer
  • The __________ on the left side of an equation must be balanced with the atoms on the right side of the equation.
    11·2 answers
  • Why does Mercury have so little gas in its atmosphere? Choose one or more: A. Its escape velocity is low. B. It has a high tempe
    7·1 answer
  • The impulse of a constant force is equal to
    14·1 answer
  • The thermal conductivity of a sheet of rigid, extruded insulation is reported to be k=0.029 W/m.K. The measured temperature diff
    8·1 answer
  • Please help me with a speech.The topic of my speech is Passion.​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!