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
Ronch [10]
3 years ago
14

which of these best dscribes Earth's mantle? A. most dense layer, consists of the outer and inner parts B. thinnest under the oc

eans and thickest under continents C. middle layer, density increases with depth as pressure increases D. least dense layer overall, consists of two layers of different thickness
Physics
1 answer:
stich3 [128]3 years ago
6 0

C. middle layer, density increases with depth as pressure increases

Explanation:

The mantle is the middle layer of the earth. It's density increases with depth as pressure increases.

  • Based on the compositional division of the earth, our blue planet is divided into crust, mantle and the core.
  • The crust is the lightest and the outermost layer of the earth.
  • The mantle is the middle layer. Its density lies between that of the core and crust.
  • The mantle is the largest layer and density increases with depth here.
  • The core is a metallic ball. It is the most dense part of the earth.

Learn more:

Mantle brainly.com/question/10758534

#learnwithBrainly

You might be interested in
Which sentence in the passage can be used to conclude that Eris is a dwarf planet and not a planet?
Lelu [443]
Eris is slightly more massive than Pluto. However, both of them are smaller than Earth's Moon.
This should conclude that Eris is a dwarf planet.
3 0
3 years ago
Read 2 more answers
I don’t understand how to do this
anzhelika [568]

Explanation:

A) Use Hooke's law to find the spring constant.

F = kx

40 N = k (0.4 m)

k = 100 N/m

B) Period of a spring-mass system is:

T = 2π √(m / k)

T = 2π √(2.6 kg / 100 N/m)

T = 1 s

Frequency is the inverse of period.

f = 1 / T

f = 1 Hz

5 0
2 years ago
A large truck collides with a small car. True or False: The truck exerted a greater magnitude force on the car than the car exer
Reptile [31]

Answer:

False.

Explanation:

The forces on the car and truck are equal and opposite. The equal forces cause accelerations of the truck and car inversely proportional to their mass. That is, If the Truck A exerts a force FAB on car B, then the car will exert a force FBA on the truck. Therefore,

FBA = −FAB

However, this can be explained by Newton's second law. Let's say the truck has mass M and the car has mass m. If the magnitude of the force that both vehicles experience is F, then the magnitudes of their respective accelerations are:

atruck = F/M

acar = F/m

and combining these we get:

atruck/acar = m/M

So if the mass of the car is a lot less than the mass of the truck, then the acceleration of the truck is much smaller than the acceleration of the car, and if you were to watch the collision, the truck would pretty much seem like it's motion was unaffected, but the car's motion will change quite a bit.

5 0
3 years ago
How much kinetic energy does a 50 kg object have if its moving at a velocity of 2 m/s?
bulgar [2K]

Answer:

C) 100 joules

Explanation:

The kinetic energy of an object is given by:

K=\frac{1}{2}mv^2

where m is the mass of the object and v its speed.

In this problem, we have an object of mass m = 50 kg and v = 2 m/s, so by using the formula we can find its kinetic energy:

K=\frac{1}{2}(50 kg)(2 m/s)^2=100 J

3 0
2 years ago
It was once recorded that a Jaguar left skid marks that were 290 m in length. Assuming that the Jaguar had a constant accelerati
Soloha48 [4]

Answer:  47.6 m/s

Explanation:  Please see attached for the calculation and formula.

5 0
3 years ago
Other questions:
  •     For spherical mirrors, how many reference rays are used to find the image point? A two B three C four D six
    10·1 answer
  • An isotope of the element fluorine has 9 protons and 10 neutrons. What is the name of this isotope? fluorine-
    11·2 answers
  • A radiographer stands six feet from the x-ray source when performing a portable chest exam and receives an exposure of 2 mGy. If
    9·2 answers
  • A perfect cube has a width of 2cm. What is the cubes volume
    14·2 answers
  • The __________ is the part of the brain thought to be responsible for a person's hunger drive.
    12·2 answers
  • you and a friend sit still on a spinning merry-go-round. The merry-go-round spins 5 times every second, and to a stationary obse
    12·2 answers
  • Suppose you are taking a walk one day when you see a tree branch snap at its base and begin to rotate downward with the break ne
    13·1 answer
  • Q 17.10: Receiver A detects a sound level of 75 dB at a distance of 25 m from a speaker, which emits sound equally in all direct
    15·1 answer
  • What is the modern periodic table of elements?
    9·2 answers
  • 1.) Rn-222 decays from 400 grams to 6.25 grams in 240 minutes. How long is one “half-life.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!