Answers
Answer: 20 m/min east
Explanation: The speed is distance divided by time
distance between start-point and end-point = 100 meters
time to cover the distance = 5 minutes
100 m ÷ 5 min = 20 m/min east
you have to add east since velocity is the measure of speed and direction and your answer needs to include the direction
Related Questions
Based on your observations how are the top left and bottom left numbers of an atom symbol different?Explain
Answer as fast as you can I need it right now please
Answers
Answer:
The top left number of the symbol of an atom is the sum of the protons and neutrons in the atom known as atomic mass number, while the bottom left number of the symbol of an atom is the number of protons in the atom known as atomic number.
Explanation:
An atom of an element is composed of other subatomic particles; the electron, proton and neutron. The number of protons present in an atom of an element is equal to the number of electrons present in the atom of that element and is known as the atomic number of the element. The number of neutrons present in the atom summed together with the proton number gives the atomic mass number of an atom of the element.
Elements are represented with symbols. In writing the symbols of elements, the atomic number and the atomic mass of an atom of the element is usually written along with the symbol. The top left number of the symbol of an atom is the sum of the protons and neutrons in the atom, while the bottom left number of the symbol of an atom is the number of protons in the atom.
For example, the element sodium has an atomic number of 11 and a mass number of 23. In symbols, it is written as follows: ²³₁₁Na
how fast is a formula 1 car? (For my chemistry project)
Answers
Answer:
it's 200 mph fast........
2. Molecular solutions do not conduct electricity because they contain: *
(1 Point)
Answers
The ions are able to move freely from one place to another. So that they conduct electricity. But the molecular solutions does not electricity.
What is a molecular solution?The molecular solution is composed of molecules and consists of non - metallic atoms. These atoms are held together by the covalent bonds. The flow of charged particles is responsible for the conduction of electricity. If there is no flow of electrons or ions then there will be no electricity.
In the molecular solutions, the molecules present are not dissociated into respective ions. Since the molecules are not converted into the charged particles no electricity is produced.
A molecular solution is regarded as a non-electrolyte which does not contain ions. But electrolytes are dissociated into ions and thereby conducts electricity. So all electrolytes are good conductors of electricity.
Thus molecular solution does not contain ions.
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PLEASE HELP THIS IS DUE TODAY
Answers
Answer:
94.99%
Explanation:
Which of the following shows the abbreviation for an SI unit of density?
Answers
the aswer is g/ml hope is helpful
Which action is a change in state?
Answers
Dissolving is your answer to this question. Becuase when something dissolves it is no longer in the same shape or state cause if something dissovles then goes away into another state.
Answer: condensing is the correct answer
Explanation:
What happened to solid materials when mixed with the liquid materials?
Answers
Answer:
the solid materials will disappear after mixing with a liquid material
plsss mark me as brainliest answer plsssssssss
Answer: go fk your dad you fkin whor
write the chemical formula of tetraphosporus osctasulfide
Answers
Answer:
P4S8 .
the chemical formula of Tetraphosporus osctasulfide is p4S8
Three isotopes of argon occur in nature. Calculate the average atomic mass of argon given the following relative atomic masses and abundances of each of the isotopes.
Isotope Relative Atomic Mass Abundance
Ar-36 35.97 amu 0.337%
Ar-38 37.96 amu 0.063%
Ar-40 39.96 amu 99.600%
a
35.97 amu
b
37.95 amu
c
39.95 amu
d
38.96 amu
Answers
Answer:
whats the question
Explanation:
Answer:
Calculate the average atomic mass of argon to two decimal places, given the following relative masses and abundances of each of the isotopes: argon-36 (35.97 amu; 0.337%), argon-38 (37.96 amu; 0.063%), and argon-40 (39.96 amu; 99.600%). ... So the atomic mass of Ar is 0.99639. 96 + 0.0006337. 96 + 0.00337*35.97 = 39.957.
Explanation:
hope this help
how to do question no 17
Answers
Explanation:
even I don't know this answer
but maybe you can solve it by putting the formula
Which statement about atoms is not correct
Answers
Answer:
Atoms are not able to exist independently.
Explanation:
Brainliest pls
Consider these two cases.
Case 1: An electron jumps from energy level 3 to energy level 7 in an atom.
Case 2: An electron jumps from energy level 3 to energy level 9 in an atom.
For case 1, what happens when an electron jumps from energy level 3 to energy level 7 in an atom?
A neutron is absorbed by the atom.
A photon is emitted by the atom.
A photon is absorbed by the atom.
A neutron is emitted by the atom.
Assuming that both cases describe Hydrogen‑like atoms with one electron, for which case is more energy emitted or absorbed?
More energy is emitted or absorbed for case 1.
The energy is the same for both cases.
More energy is emitted or absorbed for case 2.
It is impossible to tell.
Answers
Answer:
A photon is absorbed by the atom.
Explanation:
In case 2 where an electron jumps from energy level 3 to energy level 9, a photon is absorbed by the atom.
Photon is the basic unit of energy used to describe electromagnetic radiation.
When an electron moves from a lower energy level to a higher one, it absorbs energy. This energy is in form of photon. Level is a lower energy level compared to 9.II. A photon is absorbed by the atom.
It is the same scenario as case 2
III. More energy is emitted or absorbed for case 2.
More energy is emitted or absorbed for case 2 because the transition involves movement from a level to a greater level than that of case 1.
What is the state of ice at room temperature?
Answers
which of the following is true of the instinct approach to motivation
Answers
Consider two gaseous systems: one for which the Vrms of the particles is low and another for
which the Vrms of the particles is high. What can you say about the relative temperatures of
each system?
Answers
Answer:
See explanation
Explanation:
According to chemistry libretexts(2020); "The rms velocity is directly proportional to the square root of temperature and inversely proportional to the square root of molar mass. Thus quadrupling the temperature of a given gas doubles the rms velocity of the molecules. ... As the temperature of a gas is increased, the velocity of the molecules is also increased."
Hence considering two gases for which the Vrms of the particles of one is high and that of the other is low, we can conclude that the gas having the higher Vrms is at a higher temperature than the gas having a lower Vrms according to the foregoing.
An octapeptide composed of four repeating glycylalanyl units has one free amino group on a glycyl residue and one free carboxyl group on an alanyl residue.Please draw structure and explain
Answers
Answer:
Following are the solution to this question:
Explanation:
The octapeptides are: [tex]gly-ala-gly-ala-gly-ala-gly-ala[/tex]
Its structure includes free glycine amino, and alanine residues free carboxylic. Its peptides are customarily extracted from the left side free NH2 residues as well as the right side free -COOH residues only in the same direction, the sequence is provided.
please find the structure in the attached file.
20. What part of an atom exists in orbitals surrounding the nucleus?
A. electron
B. photon
C. neutron
D. proton
Answers
47. A substance has a half life of 3min. After 5 min, the
count rate was observed to be 400 what was its
count rate at rate at zero time?
2
Answers
Answer:
1000
Explanation:
PLS GIVE BRAINLIEST
Which of the following elements has four shells?
K - magnesium
Li - Lithium
P - Phosphor
F - Fluorine
He - Helium
Answers
Match Term Definition
Pure substance A) Liquid homogeneous mixture in which the solute is distributed evenly within the solvent
Heterogeneous B) Mixture that has its different components mixed evenly within the substance
Homogeneous C) Mixture that has its different components mixed unevenly within the substance
Solution D) Consists of a single element or type of compound
Answers
Answer:
b
Explanation:
this should help
Calculate the change in the molar Gibbs’ Free Energy when the volume of 1.0 mol Ar(g) held at 500 K is increased from 0.5 L to 4 L.
Answers
Answer:
energy and the equilibrium constant.
The sign of the standard free energy change ΔG° of a chemical reaction determines whether the reaction will tend to proceed in the forward or reverse direction.
Similarly, the relative signs of ΔG° and ΔS° determine whether the spontaniety of a chemical reaction will be affected by the temperature, and if so, in what way.
ΔG is meaningful only for changes in which the temperature and pressure remain constant. These are the conditions under which most reactions are carried out in the laboratory; the system is usually open to the atmosphere (constant pressure) and we begin and end the process at room temperature (after any heat we have added or which is liberated by the reaction has dissipated.) The importance of the Gibbs function can hardly be over-stated: it serves as the single master variable that determines whether a given chemical change is thermodynamically possible. Thus if the free energy of the reactants is greater than that of the products, the entropy of the world will increase when the reaction takes place as written, and so the reaction will tend to take place spontaneously. Conversely, if the free energy of the products exceeds that of the reactants, then the reaction will not take place in the direction written, but it will tend to proceed in the reverse direction.
Solve a + b + c, when a =25.164, b =74.1
Answers
Here we go the answer is in photo form please!!!
because the coldness in the ice cream and the suns gamma rays are hitting the ice cream and then it will start to melt. and that is why ice cream melts.
Answers
Answer:
...
Explanation:
How are protons, neutrons, and electrons arranged to form an atom?
Answers
Answer:
Protons are in the middle, electrons are on the loop (outside area) and the neutrons are mixed with the protons.
Explanation:
Answer:
The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). Atoms are made up of protons and neutrons located within the nucleus, with electrons in orbitals surrounding the nucleus.
Explanation:
Suppose you are titrating vinegar, which is an acetic acid solution, of unknown strength with sodium hydroxide according to the equation HC2H3O2 + NaOH → H2O + NaC2H3O2 If you require 32.17 mL of 0.116 M NaOH solution to titrate 10.0 mL of HC2H3O2 solution, what is the concentration of acetic acid in the vinegar? (M)
Answers
Answer:
0.373 M
Explanation:
The reaction is
HC₂H₃O₂ + NaOH → H₂O + NaC₂H₃O₂So 1 mol of acetic acid reacts with 1 mol of sodium hydroxide.
First we calculate the moles of NaOH:
0.116 M * 32.17 mL = 3.732 mmol NaOHBecause the stoichiometric ratio is 1:1 :
3.732 mmol NaOH = 3.732 mmol Acetic AcidNow we calculate the concentration of acetic acid, dividing the moles by the volume:
3.732 mmol Acetic Acid / 10.0 mL = 0.373 M32.17 mL of 0.116 M NaOH are required to titrate 10.0 mL of 0.373 M acetic acid.
What is titration?Titration is a common laboratory method of quantitative chemical analysis to determine the concentration of an identified analyte.
Let's consider the neutralization reaction between acetic acid and sodium hydroxide.
HC₂H₃O₂ + NaOH → H₂O + NaC₂H₃O₂
We can calculate the concentration of acetic acid in vinegar using the following expression.
Ca × Va = Cb × Vb
Ca = Cb × Vb / Va
Ca = 0.116 M × 32.17 mL / 10.0 mL = 0.373 M
where,
Ca is the concentration of the acid.Va is the volume of the acid.Cb is the concentration of the base.Vb is the volume of the base.32.17 mL of 0.116 M NaOH are required to titrate 10.0 mL of 0.373 M acetic acid.
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Carbon doesn't have a charge because it doesn't generally share or donate electrons.
*
True
O
False
Answers
Answer:
Correct me if i'm wrong but i'm pretty sure its FALSEExplanation:
Its because In a single bond, two carbon atoms share one pair of electrons. In a double bond, they share two pairs of electrons, and in a triple bond they share three pairs of electrons.1. What type of pest control uses an organism's natural enemies?
A. Cultural
B. Mechanical
C. Chemical
D. Biological
Answers
Answer:Biological
Explanation:It’s a method of controlling pest such mites, insects and weeds.
What are the 2 types of electrical charge?
Answers
Answer: Electric charges are of two general types: positive and negative.
Hope this helps... Stay safe and have a great day.... :D
Which of these elements can form a double bond in a molecule?
A. oxygen (0)
B. chlorine (CI)
C. hydrogen (H)
D. neon (Ne)
Answers
Answer:
?
Explanation:
Answer:
your answer is A
Select all the the abiotic factors that could impact a deer population.
Group of answer choices
Water
Other Organisms
Weather
Flies bringing disease
Answers
Answer:
Water
Weather
Explanation:
In an ecosystem, the factors that affect the organisms in that ecosystem can either be BIOTIC OR ABIOTIC. Biotic factors refers to the living components of an ecosystem while the ABIOTIC factors refer to the non-living components of the ecosystem.
According to this question, the abiotic (nonliving) factors that can affect a deer population includes WATER AND WEATHER. Note that the other options including flies and other organisms are both biotic factors.