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
sergij07 [2.7K]
3 years ago
14

Classify the three phases of matter according to their

Physics
1 answer:
leva [86]3 years ago
3 0

Answer:

Well, the densities of the condensed phases, solids, and liquids, are more or less constant...

Explanation:

...and not subject to change. The condensed phases are largely incompressible. On the other hand, the density of the gaseous phase is highly variable...and is a state function of temperature, pressure, volume, and amount of gas... And gaseous phases should have an intrinsically low density in comparison to solid and liquid phases...

You might be interested in
A cannon fires a shell straight upward; 1.8 s after it is launched, the shell is moving upward with a speed of 17 m/s. Assuming
goblinko [34]

To solve this problem we will apply the concepts of acceleration according to the laws of kinetics. Acceleration can be defined as the change in velocity per unit time, that is,

a = \frac{v-u}{t}

Here,

v = Final velocity

u = Initial velocity

t = Time

Rearranging to find the initial velocity,

u = v-at

Now the acceleration is equal to the gravity, then,

u = v+gt

u = 17+(9.8)(1.8)

u = 34.64m/s

The velocity of the shell at 5.5s after the launch is,

v = u+at

v = u-gt

v = 34.64-(9.8)(5.5)

v = -19.26m/s

Therefore the magnitude of the velocity of the shell at 5.5s is -19.26m/s

5 0
3 years ago
Ohms law? explanation.​
shusha [124]

Answer:

\boxed{ \bold{ \sf{see \: below}}}

Explanation:

\boxed{ \bold{ \underline{ \huge{  \boxed{ \sf{ohm's \: law}}}}}}

The relation between current through a metallic conductor and potential difference across its ends was studied systematically by a German physicist , <u>George </u><u>Simon </u><u>Ohm </u> in <u>1</u><u>8</u><u>2</u><u>6</u><u> </u><u>AD </u>. This relation is now known as Ohm's law. It states that <u>the </u><u>electric </u><u>current </u><u>passing </u><u>through</u><u> </u><u>a </u><u>conductor </u><u>is </u><u>directly </u><u>proportional</u><u> </u><u>to </u><u>the </u><u>potential </u><u>difference</u><u> </u><u>across </u><u>its </u><u>two </u><u>ends </u><u>at </u><u>a </u><u>constant </u><u>physical </u><u>condition</u><u> </u><u>[</u><u> </u><u>Temperature</u><u> </u><u>,</u><u> </u><u>cross </u><u>-</u><u> </u><u>sectional </u><u>area </u><u>,</u><u> </u><u>length </u><u>,</u><u> </u><u>nature </u><u>of </u><u>material </u><u>etc </u><u>]</u>

Hope I helped!

Best regards!!

4 0
4 years ago
Which result occurs during an exothermic reaction?
baherus [9]

Answer:

Explanation:

Chemical reactions that release energy are called exothermic. In exothermic reactions, more energy is released when the bonds are formed in the products than is used to break the bonds in the reactants. Exothermic reactions are accompanied by an increase in temperature of the reaction mixture.

3 0
3 years ago
Two prominent research groups came to the same surprising conclusion after taking measurements of the luminosity of Type Ia supe
WARRIOR [948]

Answer:

A. True

Explanation:

Type la supernova can be described as a phenomenon whereby two stars are in orbit with one another .

Recently , two prominent research groups came to the same surprising conclusion after taking measurements of the luminosity of Type Ia supernovae at great distances that the universe is accelerating while it expands.

5 0
3 years ago
How would you expect energy to change her in a chemical reaction?
igor_vitrenko [27]
The correct answer is option (c) i.e. Energy will be converted into another form.
<span>
During a chemical reaction, energy remains unchanged, It just gets converted into another form and doesn’t increases or decreases. Excess energy is released in the form of heat, light during a chemical reaction and thus, proving the law of conservation of energy which says, energy can neither be created nor destroyed. It just gets converted from one form to another form. </span>
6 0
3 years ago
Other questions:
  • Two charged particles move in the same direction with respect to the same magnetic field. particle 1 travels two times faster th
    7·1 answer
  • A spring whose spring constant is 850 N/m is compressed 0.40 m. What is the maximum speed it can give to a 500 g ball? ____m/s
    12·1 answer
  • Anita is running to the right at 5 m/s , as shown in (Figure 1) . Balls 1 and 2 are thrown toward her by friends standing on the
    11·1 answer
  • Wire A carries 4 A into a junction, wire B carries 5 A into the same junction, and another wire is connected to the junction. Wh
    12·1 answer
  • What is the mass number of the particle emitted from the nucleus during beta minus decay? What kind of charge does the particle
    10·1 answer
  • The following three hot samples have the same temperature. The same amount of heat is removed from each sample. Which one experi
    13·1 answer
  • A wall clock has a minute hand with a length of 0.55 m and an hour hand with a length of 0.26 m. Take the center of the clock as
    8·1 answer
  • 23. Two states of matter are described as follows.
    8·1 answer
  • An object is moving with constant non-zero velocity on the +x axis. The position versus time graph of this object is
    15·1 answer
  • The body of the runner was found in the park one early, hot summer morning. Her body shows rigor in her face, neck, arms, and to
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!