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
mestny [16]
3 years ago
7

Does energy or matter ever disappear? Explain.

Physics
2 answers:
Levart [38]3 years ago
8 0

Answer:

The law of Conservation of Energy states that "Energy cannot be created or destroyed.". In other words, the total amount of energy in the universe never changes, although it may change from one form to another. Energy never disappears, but it does change form.

Explanation:

maria [59]3 years ago
3 0

Answer:

The first law of thermodynamics doesn't actually specify that matter can neither be created nor destroyed, but instead that the total amount of energy in a closed system cannot be created nor destroyed (though it can be changed from one form to another).

Explanation:

You might be interested in
A rectangular copper strip 1.5cm wide and 0.10cn thick carries a current of 5.0A. Find the Hall voltage for a 1.2T magnetic fiel
Scrat [10]

Answer:

4.4345× 10^-7V

Explanation:

The computation of the half voltage for a 1.2T magnetic field applied is shown below

The volume of one mole of copper is

v = m ÷p

= 63.5 ÷ 8.92

= 7.12cm

Now the density of free electrons in copper is

n = Na ÷ V

= 6.02 × 10^23 ÷ 7.12

= 8.456× 10^28/m^3

Now the half voltage is

= IB ÷ nqt

= (5 × 1.20) ÷ (8.456× 10^28 × 1.6 × 10^-19 × 0.1× 10^-2)

= 4.4345× 10^-7V

7 0
2 years ago
Matter is __________.
dlinn [17]
<span>Matter is c) something that has mass and occupies space. Everything in our known universe takes up space, and everything is made up of matter. Matter as a concept is not something that can have any unit of measurement put upon it. </span>
6 0
2 years ago
Read 2 more answers
Ethan made a diagram to compare examples of the first and second laws of thermodynamics. What belongs in the areas marked X and
bazaltina [42]

Answer:

The answer is X: Thermal energy is converted to light energy

Y: A cold spoon placed in hot liquid gets warmer

Explanation:

I took the quiz

4 0
3 years ago
What is larger a Atom or a Molecule?
Kipish [7]
I believe an Atom is a very powerful source, the basic unit of a chemical element. An atom is a source of nuclear energy.


But a molecule on the other hand isn't so different.
a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
I hope that helps, have a fantastic day!
3 0
3 years ago
Read 2 more answers
Which of the following are the advantages of a DBMS (database management system)?
soldier1979 [14.2K]

Answer:

A

Explanation:

6 0
3 years ago
Other questions:
  • You are climbing in the High Sierra where you suddenly find yourself at the edge of a fog-shrouded cliff. To find the height of
    6·1 answer
  • A 51.0-kg woman wearing high-heeled shoes is invited into a home in which the kitchen has vinyl floor covering. The heel on each
    15·1 answer
  • If the copper is drawn into wire whose diameter is 6.50 mm, how many feet of copper can be obtained from the ingot? the density
    11·1 answer
  • a person when asked to speak up,increases her sound level from 30dB to 60dB.The amount of power per unit area increased by? a)30
    5·1 answer
  • How do I find time?
    12·1 answer
  • Fuel cells have been developed that can generate a large amount of energy. For example, a hydrogen fuel cell works by combining
    15·1 answer
  • When you hear an echo you are hearing a ________of the original sound wave
    10·1 answer
  • What provides all of the energy required to drive convection within the atmosphere and oceans?
    15·1 answer
  • You throw a baseball a distance of 20 meters. Is it work or not work?
    6·1 answer
  • Sound is capable of travelling in which medium or media ?<br><img src="https://tex.z-dn.net/?f=%20%5C%5C%20" id="TexFormula1" ti
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!