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
kari74 [83]
3 years ago
10

Which is not a common extrusive igneous rock

Physics
1 answer:
KonstantinChe [14]3 years ago
8 0
Granite is the answer i think
You might be interested in
"Darwin's finches" reside on the Galapagos Islands. Each species has a different type of beak, however, they can all be traced b
Ivahew [28]
It would be adaptation because the finches live in different islands and each have different weather and  resources  
3 0
3 years ago
Read 2 more answers
Given the initial wavefunction Ψ (x, 0) = Axexp (-k x) withx> 0 andk> 0, and Ψ (x, 0) = 0 forx <0, what value must A ta
madam [21]

Answer with explanation:

The Normalization Principle states that

\int_{-\infty }^{+\infty }f(x)dx=1

Given

f(x)=xe^{-kx}(x>0\\\\0(x

Thus solving the integral we get

\int_{0 }^{+\infty }A\cdot xe^{-kx}dx=1\\\\A\int_{0 }^{+\infty }\cdot xe^{-kx}dx=1

The integral shall be solved using chain rule initially and finally we shall apply the limits as shown below

I=\int xe^{-kx}dx\\\\x\int e^{-kx}dx-\int \frac{d(x)}{dx}\int e^{-kx}dx\\\\-\frac{xe^{-kx}}{k}-\int 1\cdot \frac{-e^{-kx}}{k}\\\\\therefore I=\frac{e^{-kx}}{k}-\frac{xe^{-kx}}{k}

Applying the limits and solving for A we get

I=\frac{1}{k}[\frac{1}{e^{kx}}-\frac{x}{e^{kx}}]_{0}^{+\infty }\\\\I=-\frac{1}{k}\\\\\therefore A=-k

3 0
3 years ago
The mass of a cm3(cube) stone is 180.
ss7ja [257]

 Density = (mass) / (volume), no matter how large or small the sample is.

We can't calculate the density, because you left out the number for the volume.
Also, you didn't tell us the unit for the mass of 180.

a).  If the mass is 180 grams, then the density is 

                               (180 gm) / (volume) .

b).  No matter how many pieces you crush it into, and
no matter how large or small a piece is, its density is
the same.  (I just wish we knew what the density really is.)

c).  A piece may have 80 grams of mass.  It doesn't "weigh" 80 grams.

Since the density of the whole rock is  (180 gm) / (volume),
the density of any piece of it is  (180 gm) / (volume).

Multiply each side by (volume):   (Density) x (volume) = 180 gm

Divide each side by (density):        Volume = (180 gm) / (density)

We can't calculate the volume of an 80-gm piece, because
we don't know the density.  (That's because you left the volume
out of the question.)

4 0
3 years ago
How is the speed of light measured when it is light years away?
Shkiper50 [21]

Answer:

<h2>In a vacuum, light travels at 670,616,629 mph (1,079,252,849 km/h). To find the distance of a light-year, you multiply this speed by the number of hours in a year (8,766). The result: One light-year equals 5,878,625,370,000 miles (9.5 trillion km).</h2>

4 0
4 years ago
Give me an example of heterogeneous mixture
Dmitry [639]

Answer:

oil and water

Explanation:

7 0
3 years ago
Other questions:
  • On a foggy day, you are driving at 70 mph and Granny is driving at 50 mph. As you try to pass her, you both see an overturned tr
    9·1 answer
  • An anion is an atom that has lost electrons. True or False?
    11·2 answers
  • The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the pers
    11·1 answer
  • Two blocks are connected by a light weight, flexible cord that passes over a frictionless pulley.Ifm1=2 kg and m2 = 3 kg, and bl
    15·1 answer
  • A 50kg object accelerates a 5m/s/s. What is the net force acting on the object?
    7·2 answers
  • Which best esplains how the body maintains homeostasis.
    6·2 answers
  • 14. If 100 grams of sodium nitrate are dissolved in 100 grams of water
    5·1 answer
  • Why is it important to warm up the mess in before a workout
    11·1 answer
  • If you double the force an object what will hapen to the accelration
    8·2 answers
  • What can<br> corporations/<br> franchise do to<br> reduce plastic<br> waste?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!