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
bonufazy [111]
3 years ago
15

What kind of rock/mineral is wall board made out of?

Physics
2 answers:
Aleks04 [339]3 years ago
7 0
Calcium sulfate hope this helps


zheka24 [161]3 years ago
7 0
It is made of mohangany and concrete
You might be interested in
If a neutral material like fur is rubbed on another neutral object like a rubber ball what is the resulting charges of the objec
alexdok [17]

Answer:

b

Explanation:

they both have a neutral charge so they couldn't be positive or negative since that wouldn't come from anywhere

8 0
3 years ago
Define specific heat capacity
sleet_krkn [62]

Answer:you can just look this up yknow?

Explanation:

7 0
3 years ago
Read 2 more answers
Niobium metal becomes a superconductor when cooled below 9K. Itssuperconductivity is destroyed when the surface magnetic fieldex
elena-14-01-66 [18.8K]

Answer:

the maximum current is 500 A

Explanation:

Given the data in the question;

the B field magnitude on the surface of the wire is;

B = μ₀i / 2πr

we are to determine the maximum current so we rearrange to find i

B2πr = μ₀i

i = B2πr / μ₀

given that;

diameter d = 2 mm = 0.002 m

radius = 0.002 / 2 = 0.001 m

B = 0.100 T

we know that permeability; μ₀ = 4π × 10⁻⁷ Tm/A

so we substitute

i = (0.100)(2π×0.001 ) / 4π × 10⁻⁷

i = 500 A

Therefore, the maximum current is 500 A

4 0
3 years ago
What can change shape and volume? PLz help :)
Rasek [7]
Gas has no certain shape However, its Volume can change with Differences in Heat and Pressure.
6 0
3 years ago
Read 2 more answers
Light of wavelength 650 nm is normally incident on the rear of a grating. The first bright fringe (other than the central one) i
garik1379 [7]

Answer

given,

wavelength (λ) = 650 nm

angle = 5°

using bragg's law

sin \theta = \dfrac{n \lambda}{d}

d= \dfrac{n \lambda}{sin \theta}

d= \dfrac{1 \times 650 \times 10^{-9}\ m}{sin5^0}

d = 7.46 x 10⁻⁴ cm

number of slits per centimeter

  = \dfrac{1}{d}\\\Rightarrow \dfrac{1}{7.46\times 10^{-4}}\\\Rightarrow 1340 split per centimeter.

b) wavelength of two rays  650 nm and 420 nm

 d = \dfrac{1}{5000}

     d =  2 x 10⁻6 m

    we now,

sin \theta = \dfrac{n \lambda}{d}

for 650 nm

sin \theta = \dfrac{2\times 650\times 10^{-9}}{2\times 10^{-6}}

\theta =sin^{-1}(0.65)

θ = 40.54°

for 450 nm

sin \theta = \dfrac{2\times 450\times 10^{-9}}{2\times 10^{-6}}

\theta =sin^{-1}(0.45)

θ = 24.83°

now, difference

|θ_{650} -θ_{420}| =40.54°-24.83°

|θ_{650} -θ_{420}| =19.71°

8 0
4 years ago
Other questions:
  • The distance between the first and fifth minima of a single-slit diffraction pattern is 0.500 mm with the screen 37.0 cm away fr
    14·1 answer
  • What is radioisotope dating?
    13·1 answer
  • Jung arrived at a concert in the park do late that the only seat she could get was almost a block from the stage. she could hear
    11·2 answers
  • The strong nuclear force holds together which two particles in an atom?
    13·1 answer
  • A 480 V battery pack is used to accelerate an electric car over a time interval of 9.5 s. If 1527 C of charge flow through the b
    13·1 answer
  • The purpose of a master production schedule (MPS) is to break down the aggregate planning decisions into such details as order s
    6·1 answer
  • A horizontal spring with spring constant of 9.80 N/m is attached to a block with a mass of 1.20 kg that sits on a frictionless s
    15·1 answer
  • Whích phase change is the result of particles moving more quickly? (2 points)
    9·1 answer
  • How many orbitals are in the 2p sublevel?
    13·2 answers
  • Consider the two vectors a 3i-2j & b = -i-4j calculate the direction of a+b and a-b?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!