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
USPshnik [31]
3 years ago
15

A cylinder contains 480 cm3 of loose dry sand which weighs 820 g. Under a static load of 200 kPa the volume is reduced 1%, and t

hen by vibration it is reduced 10% of the original volume. Assume the solid density of sand grains is 2.65 Mg/m3 . Compute the void ratio, porosity, dry density, and total density corresponding to each of the following cases:__________.(a) Loose sand. (b) Under static load. (c) Vibrated and loaded sand.
Engineering
1 answer:
goblinko [34]3 years ago
5 0

Answer:

a.

b.

c.

Explanation:

a. void  ratio is provided by the formula: e = \frac{V_{p} }{V_{s}  }

   where , V_{p} = volume of voids

                V_{s} = volume of solid grains

for loose sand, the void space = \frac{480}{480}

                                                   = 1

b. void ratio after static load = 0.1/(480)/ (480)

                                               = 0.1

c. void ratio after vibration = [480- ( 0.1 * 480) ]/ 480

                                             = 0.9

You might be interested in
The _____ is a voice for small business.
Sliva [168]

Answer:

The <u>National Federation of Independent Business (NFIB) </u>is a voice for small business

Explanation:

The National Federation of Independent Business is a not for profit business association with goal of supporting and upholding small business owners right to carry out their privately owned business, protecting them from excessive government intrusions into their businesses.

The association have their headquarters in Tennessee with offices in Washington DC and the capitals of the 50 state capitals making NFIB the most far-reaching and largest association for small business in the U.S.

6 0
3 years ago
A kitchen contains one section of counter that's 20 inches
Ne4ueva [31]

The number of receptacles that are needed for all of these kitchen areas are: C. Four.

<h3>What are receptacles?</h3>

Receptacles can be defined as types of sockets or series of outlets (openings) that provides a path where current can be taken in a wiring system, so as to run electrical appliances in buildings.

Based on the information provided, the number of receptacles that are needed for all of these kitchen areas are four because one would be used in each area.

Read more on receptacles here: brainly.com/question/23839796

#SPJ1

4 0
1 year ago
In casting experiments performed using a certain alloy and type of sand mold, it took 170 sec for a cube-shaped casting to solid
poizon [28]

Answer:

Answer for the question is : Solidification time will be same i.e. 170. See attached file for explanation.

Explanation:

Download pdf
7 0
3 years ago
Read 2 more answers
In the circuit given below, R1 = 17 kΩ, R2 = 74 kΩ, and R3 = 5 MΩ. Calculate the gain 1formula58.mml when the switch is in posit
Elenna [48]

Answer:a

a) Vo/Vi = - 3.4

b) Vo/Vi = - 14.8

c) Vo/Vi = - 1000

Explanation:

a)

R1 = 17kΩ

for ideal op-amp

Va≈Vb=0 so Va=0

(Va - Vi)/5kΩ + (Va -Vo)/17kΩ = 0

sin we know Va≈Vb=0

so

-Vi/5kΩ + -Vo/17kΩ = 0

Vo/Vi = - 17k/5k

Vo/Vi = -3.4

║Vo/Vi ║ = 3.4    ( negative sign phase inversion)

b)

R2 = 74kΩ

for ideal op-amp

Va≈Vb=0 so Va=0

so

(Va-Vi)/5kΩ + (Va-Vo)74kΩ = 0

-Vi/5kΩ + -Vo/74kΩ = 0

Vo/Vi = - 74kΩ/5kΩ

Vo/Vi = - 14.8

║Vo/Vi ║ = 14.8  ( negative sign phase inversion)

c)

Also for ideal op-amp

Va≈Vb=0 so Va=0

Now for position 3 we apply nodal analysis we got at position 1

(Va - Vi)/5kΩ + (Va - Vo)/5000kΩ = 0           ( 5MΩ = 5000kΩ )

so

-Vi/5kΩ + -Vo/5000kΩ = 0

Vo/Vi = - 5000kΩ/5kΩ

Vo/Vi = - 1000

║Vo/Vi ║ = 1000  ( negative sign phase inversion)

3 0
3 years ago
- Viscoelastic stress relaxation
My name is Ann [436]

Explanation:

The correct answers to the fill in the blanks would be;

1. Viscoelastic stress relaxation refers to scenarios for which the stress applied to a polymer must decay over time in order to maintain a constant strain. Otherwise, over time, the polymer chains will slip and slide past one another in response to a constant applied load and the strain will increase (in magnitude).

2. Viscoelastic creep refers to scenarios for which a polymer will permanently flow over time in response a constant applied stress.

The polymer whose properties have been mentioned above is commonly known as Kevlar.

It is mostly used in high-strength fabrics and its properties are because of several hydrogen bonds between polymer molecules.

5 0
3 years ago
Other questions:
  • In C++ the declaration of floating point variables starts with the type name float or double, followed by the name of the variab
    14·1 answer
  • In the 1960s through 1980s, a medical filter manufacturer in Ann Arbor discharged 1,4-dioxane (an industrial solvent) directly i
    10·1 answer
  • Sketch the velocity profile for laminar and turbulent flow.
    15·1 answer
  • True/False<br> An anemometer displays wind direction, wind speed, altitude and type of precipitation
    12·1 answer
  • You’re going to write a program that models the Littleton City Lotto (not a real Lotto game). The program is going to allow to u
    6·1 answer
  • Which of the following statements is not true about underage drinking?
    10·1 answer
  • How many times has the ITU-R revised the CCIR 601 international standard? A. four B. five C. six D. seven
    8·1 answer
  • Set the leak rate to zero and choose a non-zero value for the proportional feedback gain.Restart the simulation and turn on the
    5·1 answer
  • What is the difference between a natural and artificial diamond ​
    6·2 answers
  • The image shows the relative positions of Earth and the Sun for each of the four seasons. Earth travels in an elliptical orbit a
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!