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
Blizzard [7]
3 years ago
15

Identify the following formulas:

Engineering
1 answer:
gregori [183]3 years ago
4 0
1. In the image below
2. y=mx+b
3. Ax+By=C (I think)
4. y-y1=m(x-x1)

You might be interested in
Compute the theoretical density of ZnS given that the Zn-S distance and bond angle are 0.234 nm and 109.5o, respectively. The at
andriy [413]

Answer: the theoretical density is 4.1109 g/cm³

Explanation:  

first the image of one set of ZnS bonding in the crystal structure, we calculate the value of angle θ

θ + ∅ + 90° = 180°

θ = 90° - ∅

θ = 90° - ( 109.5° / 2 )

θ = 35.25°

next we calculate the value of x from the geometry

given that;  distance angle d = 0.234

x = dsinθ

= 0.234 × sin35.25°)

= 0.135 nm = 0.135 × 10⁻⁷ cm

next we calculate the length of the unit cell

a = 4x

a = 4(0.135)

a = 0.54 nm = 0.54 × 10⁻⁷ cm

next we calculate number of formula units

n' = (no of corner atoms in unit ell × contribution of each corner atom in unit cell) + ( no of face center atom in a unit cell × contribution of each face center atom in a unit cell)

n' = 8 × 1/8) + ( 6 × 1/2)

= 1 + 3

= 4

next we calculate the theoretical density using  this equation

P = [n'∑(Ac + AA)] / [Vc.NA]

= [n'∑(Ac + AA)] / [(a)³NA]

where the ∑Ac is sum of atomic weights of all cations in the formula unit( 65.41 g/mol)

∑AA is the sum of weights of all anions in the formula unit( 32.06 g/mol)

Na is the Avogadro’s number( 6.023 × 10²³ units/mole)

so we substitute

P = [4( 65.41 + 32.06)] / [ ( 0.54 × 10⁻⁷ )³ × (6.023 × 10²³)]

= 389.88 / 94.84

= 4.1109 g/cm³

therefore the theoretical density is 4.1109 g/cm³

5 0
3 years ago
1. When the pneumatic device was demonstrated, explain something that was different than what you expected.
Vera_Pavlovna [14]

Answer:

1. Effect of air pressure

2. air- powered wheel chair

3. Pneumatic valves

Explanation:

1. In any pneumatic device, the mipact of air pressure to produce the moving effect on an heavy object is unexpected.

2. pneumatice demultiplexer when air in comprressed tank is allowed released to cause movement of the  chair.

3. In industries, a pneumatic valve operates by force of air when actuated. A signal causes actuation of coil. When coil is energized, compressed high pressure air is allowe to enter in a small cylinder and cause operation of valve

5 0
3 years ago
Read 2 more answers
Search and destroy christian
Setler [38]

Answer: ummmm wut?

Explanation:

3 0
3 years ago
Read 2 more answers
A load of 1 kg is applied to the tip of a cantilever beam with a width b = 2.5 cm, a thickness h = 1 mm, length L = 20 cm, modul
garik1379 [7]

Answer:

20 g/cm3 divide by 6 is 20

4 0
3 years ago
Read 2 more answers
Water flows with an average speed of 6.5 ft/s in a rectangular channel having a width of 5 ft The depth of the water is 2 ft.
lisov135 [29]

Answer:

specific energy  = 2.65 ft

y2 = 1.48 ft  

Explanation:

given data

average speed v = 6.5 ft/s

width = 5 ft

depth of the water y = 2 ft

solution

we get here specific energy that is express as

specific energy = y + \frac{v^2}{2g}     ...............1

put here value and we get

specific energy = 2 + \frac{6.5^2}{2\times 9.8\times 3.281}  

specific energy  = 2.65 ft

and

alternate depth is

y2 = \frac{y1}{2} \times (-1+\sqrt{1+8Fr^2})  

and

here Fr² = \frac{v1}{\sqrt{gy}}  = \frac{6.5}{\sqrt{32.8\times 2}}  

Fr² = 0.8025

put here value and we get

y2 = \frac{2}{2} \times (-1+\sqrt{1+8\times 0.8025^2})

y2 = 1.48 ft  

7 0
3 years ago
Other questions:
  • Choose two consumer services careers and research online to determine what kinds of professional organizations exist for these p
    11·1 answer
  • Technician A says diesel engines are also called compression ignition engines. Technician B says diesel engines have much higher
    9·1 answer
  • Some signs of aggressive drivers include
    5·1 answer
  • When two or more simple machines are combined they form
    12·1 answer
  • 2- A 2-m3 insulated tank containing ammonia at -20 C, 80% quality, is connected by a valve to a line flowing ammonia at 2 MPa, 6
    14·1 answer
  • PLEASE HELP!!! ILL GIVE BRANLIEST *EXTRA POINTS* dont skip :((
    11·2 answers
  • Solve the inequality. Then graph your solution.<br> -9v – 10 &lt; 7y +6
    14·1 answer
  • ما سبب نزول الاية
    6·1 answer
  • What happens to the duty cycle for a GMAW Gun when 75Ar/25COzgas
    5·1 answer
  • 2.<br> The most common way to identify size of pipe is by:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!