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
BlackZzzverrR [31]
3 years ago
7

I need help can someone help me !!!!

Physics
2 answers:
Dahasolnce [82]3 years ago
6 0

Answer:

doorbells

Explanation:

ElenaW [278]3 years ago
5 0

Answer:

speakers is going to be your answer

You might be interested in
This is a green pigment in chloroplasts that traps light energy from the sun.
vovikov84 [41]
green pigment in the chloroplast is chlorophyll
6 0
3 years ago
QUESTION 5 When an instrument is sounded together with a turning fork of frequency 260Hz , 2 beats are heard. When the same inst
Musya8 [376]

Answer:

Explanation:

4126h2.

4 0
3 years ago
Why is the reflection of a wave at a free boundary different from reflection at a fixed boundary??
Gnoma [55]

Here is the main thing is medium. In the free boundary wave face the air medium, but in a fixed boundary wave face different medium. The change of medium effect on the change of the reflection of wave.

6 0
3 years ago
Razona si, en las experiencias de Faraday, el efecto producido moviendo el circuito será el mismo que el producido moviendo el i
const2013 [10]

Answer:

moving the circuit or the magnet gives the same result

Explanation:

The faraday effect establishes that the temporal variation of imaginative flow produces an electric potential

          fem = \frac{d \phi }{dt}dfi / dt

the magnetic flux is

         Ф = B. A = B A cos θ

suppose for simplicity that the angle is zero so cos 0 = 1

         Φ = B A

By analyzing this expression, the change in magnetic flux can converge while keeping the magnetic field fixed and varying the electric field or keeping the electric field fixed and varying the magnetic field.

Consequently moving the circuit or the magnet gives the same result

5 0
3 years ago
What is dark energy?
Gnesinka [82]
Dark energy is what is causing the accelerating expansion of the universe. It can also be defined as the theoretical energy that counteracts or acts against gravity. Others also define it as a theoretical, new kind of dynamic energy field that fills space, but whose energy has an effect opposite to that of normal energy.
5 0
3 years ago
Other questions:
  • Sophie and Vivian were trying to push a cart up a ramp. They wanted to decrease the amount of effort they needed to use to get t
    9·1 answer
  • Write an expression for the potential energy of a body of mass m in the gravitational field of the earth and moon. let me be the
    8·1 answer
  • What is the acceleration of a car that maintains a constant velocity of 100km/h for 10 seconds?
    8·2 answers
  • A ball is thrown horizontally from the top of a building 37.5 m high. The ball strikes the ground at a point 80.3 m from the bas
    15·1 answer
  • a)Show that whennbecomes very large, the energy levels of the hydrogen atom are getting closer to energy.b)Are the rays of these
    8·1 answer
  • A reaction at 11.0°C evolves 133.mmol of boron trifluoride gas. Calculate the volume of boron trifluoride gas that is collected.
    9·1 answer
  • A 500N force applied against an unmoving object does 0J of work <br> Please help it’s a test !!!
    11·1 answer
  • 2. a) A disc rotates about its axis at speed 25 revolutions per minute and takes 15 s to stop. Calculate the
    15·1 answer
  • What’s the correct punctuation and capitalization for the sentence the copier as well as a printers are going to be repaired by
    7·2 answers
  • What is the maximum number of comparisons that a binary search should do for a sorted array of 81,014 elements ?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!