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
Artist 52 [7]
3 years ago
13

Break down of rock can be chemical or mechanical

Physics
2 answers:
lisabon 2012 [21]3 years ago
7 0
Mechanical I think is the answer I'm not really sure
34kurt3 years ago
3 0
Chemical weathering can break down rock.

So, (Chemical Weathering will be your answer.)

Have a Brainly Day!


You might be interested in
Which of the following represents the greatest energy transition from a higher energy level to a lower one?
prohojiy [21]
You need to use Planck's law:
E = h·υ = (h·c)/λ

Without making all the calculations, a fraction is bigger than another when the denominator is smaller. Therefore you need to find the smallest wavelength (λ) which is 450nm.

You could also be helped by colors: in order of decreasing energy, you have blue - green - yellow - red.

In any case, the correct answer is a).
8 0
3 years ago
True or false? a well oiled machine has no friction
Digiron [165]

false. all obejects in motion have friction

3 0
3 years ago
Read 2 more answers
Interactions of current carrying wires
koban [17]
Physics stack exchange
7 0
2 years ago
100 kw of power is delivered to the other side of a city by a pair of power lines with the voltage difference of 13014.1 v.
FinnZ [79.3K]
A) The power delivered to the lines is
P_{in}= 100 kW=1 \cdot 10^5 W
And the voltage at which the lines work is
V=13014.1 V
Since the power delivered is the product between the voltage and the current:
P=VI
We can find the current flowing in the lines:
I= \frac{P}{V}= \frac{1 \cdot 10^5 W}{13014.1 V}=7.68 A

b) The voltage change along each line can be found by using Ohm's law:
\Delta V = IR = (7.68 A)(10 \Omega)=76.8 V

c) The power wasted as heat along each line is given by:
P_d = I^2 R = (7.68 A)^2 (10 \Omega) = 590 W
And since we have 2 lines, the total power wasted as heat in both lines is
P_d = 2 \cdot 590 W=1180 W
6 0
2 years ago
For a steady two-dimensional flow, identify the boundary layer approximations.
Georgia [21]

Answer:

  • The velocity component in the flow direction is much larger than that in the normal direction ( A )
  • The temperature and velocity gradients normal to the flow are much greater than those along the flow direction ( b )

Explanation:

For a steady two-dimensional flow the boundary layer approximations are The velocity component in the flow direction is much larger than that in the normal direction and The temperature and velocity gradients normal to the flow are much greater than those along the flow direction

assuming Vx ⇒ V∞ ⇒ U and Vy ⇒ u from continuity equation we know that

Vy << Vx

4 0
3 years ago
Other questions:
  • A friend throws a coin into a pool. you close your eyes and dive toward the spot where you saw it from the edge of the pool. whe
    5·2 answers
  • A diffraction grating is made up of slits of width 260 nm with separation 810 nm. The grating is illuminated by monochromatic pl
    15·1 answer
  • Scientists earlier believed that the lowest measurable temperature is the freezing point of ice. However, modern scientists beli
    12·1 answer
  • A weather emergency siren is mounted on a tower, 105 m above the ground. On one hand, it would be a good idea to make the siren
    14·1 answer
  • A 4.00-kg particle moves along the x axis. Its position varies with time according to x 5 t 1 2.0t 3, where x is in meters and t
    5·2 answers
  • Lightning bolts can carry currents up to approximately 20 kA. We can model such a current as the equivalent of a very long, stra
    10·2 answers
  • Determine the velocity of a beam of electrons that goes undeflected when moving perpendicular to an electric and magnetic field.
    9·1 answer
  • The densities of the elements K, Ca, Sc, and Ti are 0.86, 1.5, 3.2, and 4.5 g/cm³, respectively. One of these elements crystalli
    8·1 answer
  • Which hypothenical scenerio would you result in the moon not having dofferent phases? A.The moon takes twice as long as it does
    12·1 answer
  • The amplitude of a wave is the height of a wave as measured from the highest point on the wave________ to the lowest point on th
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!