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
damaskus [11]
3 years ago
11

Scientists have established that some of the layers of Earth are solid, some are liquid, and some are semi-fluid. Explain how th

e scientists are able to determine the liquid and solid layers. Use at least two pieces of evidence to support your answer.
Chemistry
2 answers:
PilotLPTM [1.2K]3 years ago
7 0
Scientists use siesmic waves also known as s-waves. These only go through solid layers not liquid. So when they reach a liquid level the wave shoots back and the scientists are able to determine what layers are solid and which are not.
Nadusha1986 [10]3 years ago
4 0
They can determine the liquid layers and solid layers by seismic waves
You might be interested in
If you were to place the beaker containing the products of the reaction between copper ii chloride and aluminum on a balance, ho
Allisa [31]
The mass would be same because of the law of conservation which states that the mass of the reactants must equal to the mass of products
6 0
3 years ago
How many miles are in 215 grams of water
Irina18 [472]
You're off to a good start, now find the mass of H2O and put it under I mol,

then multiply 1 mol over the mass of H2O by 215 grams
3 0
3 years ago
Select the reason why two molecules of benzaldehyde cannot react via the aldol condensation.
Lesechka [4]
Benzaldehyde or C6H5CHO would not undergo the aldol condensation because it does not contain an alpha-hydrogen in its structure. Aldol condensation is a type of reaction that happens between an enolate and an aldehyde or ketone leading to a alkene that has a planar structure. The lack of an alpha-hydrogen would not allow for it to undergo such process since it cannot enolize. Benzaldehyde undergoes a nucleophilic reaction known as Claisen-Schmidt condensation. It has somehow same mechanism of the aldol reaction however, the nucleophilic attack on the carbonyl happens even without the alpha-hydrogen but with an enolate that is from a ketone.
4 0
3 years ago
A poundal is the force required to accelerate a mass of 1 lbm at a rate of 1 ft/s2, and a slug is the mass of an object that wil
Darya [45]
Remember the formula as per the second Law of Newton: F = m*a

And also remember that the weight is the force with which the mass is attracted by the planet (or satellite in the case of the moon).

With that information you can answer the questions:

a) Weight = F = m*a

m = 175 slugs = 175 lbm

i) Earth

a = 32.17 ft/s^2

Weight on Earth = 175 lbm * 32.17 ft / s^2 = 5,629.75 poundal

ii) Moon

a = [1/6] 32.17 ft/s^2

Weight on the Moon = [1/6]*5,629.75 poundal = 938.29 poundal

b) Force = 355 poundal
m = 25.0 slug

a in m/s^2 = ?

First calculate the force in ft/s^2

F = m*a => a = F/m = 355 poundal / 25.0 slug = 14.2 ft/s^2

Conversion:

14.2 ft / s^2 * [ 0.3048 m/ft] = 4.32816 m/s^2

Answer: 4.33 m/s^2


8 0
3 years ago
Which characteristic of living organisms is described by the following definition? "The ability
saw5 [17]
3 I don’t know but it may be movement
3 0
3 years ago
Other questions:
  • The temperature scale used with Charles law and Guy-Lussacs law
    9·1 answer
  • For which of the following processes would you expect there to be an increase in entropy? Ag+(aq) + Cl-(aq) AgCl(s) H2O(g) H2O(l
    11·2 answers
  • Sea water contains roughly 158.0g of Nacl per liter. What is the molarity of sodium chloride in sea water?
    6·1 answer
  • What is the oxidation number of nitrogen in the nitrate ion NO31−?
    7·2 answers
  • Linolenic acid (C18H30O2) can be hydrogenated to stearic acid by reacting it with hydrogen gas according to the equation: C18H30
    7·1 answer
  • How many atoms of Bi are there in a 41.8 g sample?
    15·1 answer
  • 1. Do you believe we can bring an end to acid rain? How so?
    10·1 answer
  • The graph shows a car's velocity over time. Velocity versus Time 60 40 Velocity, in mph forward 30 20 10 4 1 2 3 5 G Time, in se
    9·2 answers
  • Please help me will mark brainly
    10·1 answer
  • Please help.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!