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
If the CD rotates clockwise at 500 rpm (revolutions per minute) while the last song is playing, and then spins down to zero angu
gavmur [86]

Answer:

Explanation:

Given that,

Initial Angular velocity w=500rpm

Converting from rpm to rad/s

1rev =2πrad

1minutes =60secs

500rpm=500rev/mins

w = 500×2π/60

wi=52.36rad/s

The final angular velocity wf=0rad/s

Time to stop is t=2.6sec

We want to find angular acceleration α

Using the equation of angular motion

wf = wi + αt.

0 = 52.36 + 2.6α

-52.36=2.6α

α = -52.36/2.6

α = -20.14rad/s²

The angular acceleration is negative because it is decelerating.

Then, α=20.14rad/s²

8 0
3 years ago
Read 2 more answers
When you ride a bike and make a turn, you can feel your body trying to
Rina8888 [55]

Answer:first law

Explanation:

it states the a body in motion or rest maintain its state until an external force is acted on it

8 0
3 years ago
Help me please brainlest
crimeas [40]
B . it should be convert energy.
5 0
3 years ago
Read 2 more answers
The total units by an objects as it changes position is called _____ ?
Alika [10]
Change in position of object = Displacment
7 0
3 years ago
An electromagnetic wave is propagating in the positive x direction. at a given moment in time, the magnetic field at the origin
antiseptic1488 [7]

Since in an electromagnetic wave the electric and magnetic fields are perpendicular to each other and perpendicular to the direction of motion, the electric field has to point in the z direction.

6 0
3 years ago
Read 2 more answers
Other questions:
  • A point charge q1 = 4.50 nC is located on the x-axis at x = 1.95 m , and a second point charge q2 = -6.80 nC is on the y-axis at
    7·1 answer
  • Two elements in Period 4 that are most similar to Cobalt?
    8·1 answer
  • Do you think the universe has a center
    14·1 answer
  • Formula for displacement
    15·1 answer
  • The Palo Verde nuclear power generator of Arizona has three reactors that have a combined generating capacity of 3.937×109 W . H
    14·1 answer
  • The diagram below illustrates the law of reflection.
    15·1 answer
  • This is a group of elements with few valence electrons that conducts heat and electricity.
    14·1 answer
  • I need help with question ii) Calculate the speed of these radio waves.
    6·1 answer
  • The rate of change in position at a given point in time
    9·1 answer
  • Which of the following is NOT a natural source of light?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!