Air is a good conductor of heat..
True
Or
False!!
Answers
Related Questions
Which of these is the best description for a circuit with an open switch?O A) brokenOB) turned offOC) badly designedOD) currently operating
We know velocity of sound v=a₩(omega), but speed does not depend on amplitude, why?
What are six forms of energy
Fill in the blank. The gravitational attraction between two objects will ----------- if one object acquires more mass.
Answers
Answer:
B) Electrons and protons
Explanation:
Each proton has a positive charge, and each electron has a negative charge. If the atom is electrically neutral, there must be the same number of electrons and protons.
A) and C) are wrong. Neutrons have no charge, so they can't counteract that of the protons or the electrons.
D) is wrong. The atomic number is the number of protons, and the mass number is the number of protons plus neutrons. The neutrons can't counteract the charge of the protons,
Final answer:
In an electrically neutral atom of any element, the number of electrons equals the number of protons. This balance gives the atom its neutrality. Atomic number and atomic mass do not directly relate to the atom's electrical state.
Explanation:
In an electrically neutral atom of any element, there are equal numbers of electrons and protons. This balance between the negatively charged electrons and positively charged protons ensures the overall electrical neutrality of the atom. Neutrons, which are neutral particles, do not affect electrical neutrality. The atomic number represents the number of protons in an atom while the atomic mass, close to the number of neutrons, is the sum of protons and neutrons.
Learn more about electrically neutral atom here:
#SPJ6
Answers
Answer:
Albert Einstein and issac Newton
Explanation:
Answer:
a and d
Explanation:
edge 2021
B. The heavy caffeine molecules are more likely to fall apart than the lighter CuCl2 molecules.
C. The metallic bonds in copper chloride are stronger than the ionic bonds in caffeine.
D. Caffeine is a network solid and has a low melting point like other network solids.
Answers
Answer:
Option-A " The intermolecular forces holding the caffeine molecules together are weaker than the ionic bonds in CuCl₂ ".
Explanation:
There are two types of interactions among the atoms and molecules. One are known as intramolecular forces while the other are known as intermolecular forces.
Examples of Intramolecular forces are ionic bonds and covalent bonds e.t.c. while examples of intermolecular forces are hydrogen bond interactions, dipole-dipole interactions e.t.c.
Remember that intramolecular forces ar far more greater in strength than the intermolecular forces. Hence, in given statement the interactions between Caffeine molecules are intermolecular forces while, that between Cu and Cl ions in CuCl₂ are intramolecular forces.
Answers
Frequency of a wave =
(speed of the wave) divided by (wavelength)
or
(1) divided by (period of the wave) .
Period of the wave =
(wavelength) divided by (speed of the wave)
or
(1) divided by (frequency of the wave) .
slugs are the only member of what that have no shells
Answers
distance : time = 20 km : 1/2 hour = 40 km/hour
B. 1. what quantities can be identified in the graph?
2. explain the meaning of the horizontal lines in the graph.
3. calculate agni's velocity during the race.
4. calculate the speed reached by agni at the end of the race.
on independence day, there was a bicycle race organized in a neighborhood. an observer took notes on the progress of one participant, named agni. who finally won the race... the collected data is shown in " graph of agni's bicycle track " as shown below
Answers
v = Δx/Δt = (
B.
1. From the graph given, we can get an information such as the distance travelled, and the time given.
2. If the graph are horizontal, it means that the Agni's speed is zero because Agni doesn't move.
3. If the question ask the velocity during all time, we can say that the velocity is :
.
4. So, the final velocity can be found by looking the third part of the graph. So,..
Hope this will help you :)