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
Viktor [21]
4 years ago
15

What happens when electrical energy is used to power stereo speakers? A. Energy is neither lost nor gained as electrical energy

is transformed into the energy of sound. B. Energy is gained as electrical energy transforms into the energy of sound. C. Energy is lost as electrical energy transforms into the energy of sound. D. Energy is neither lost nor gained as sound energy transforms into electrical energy.
Physics
1 answer:
Viktor [21]4 years ago
8 0

Since energy can neither be created nor destroyed and it just changes from one form to another...so... A. Energy is neither lost nor gained as electrical energy is transformed into the energy of sound.

You might be interested in
. A student claims that if lighting strikes a metal flagpole, the force exerted by the Earth’s magnetic field on the current in
Ratling [72]

Answer:

Explanation:

Given that, current generated from lightning range from

10⁴ A < I < 10^5 A

We know that,

The magnetic force is given as

F = iLB

The magnetic field on the earth surface is

B = 10^-5 T

So, let assume the worst case of a 15m flag pole

L = 15m

Then,

F = iLB

F = 10^5 × 10 × 10^-5

F = 15 N

Therefore, 15N is fairly strong so it will come to the material that was use for the material of the flag pole.

Therefore, it is possible that the student is right depending on the material of the flag pole.

7 0
4 years ago
While traveling home at dusk, a motorcyclist gets on the highway and increases the combined mass (400 kg
alexdok [17]

The acceleration of one of those bugs is equal to 305mi/s.

<h3>Acceleration calculation</h3>

To calculate the insect's acceleration, the action and reaction force of the impact must be considered.

As the insect will hit the helmet, the force it hits is the same force it receives, so we can make the following expression:

                                          m_m \times a_m = m_b \times a_b

                                        550 \times 0.0027 = 5 \times 10^{-3} \times a_b

<em>Speed ​​has been converted to miles per second</em>

                                          a_b = 305 mi/s

So, the acceleration of one of those bugs is equal to 305mi/s.

Learn more about acceleration calculation: brainly.com/question/390784

8 0
2 years ago
What type of electromagnetic wave is used in security alarms
Gekata [30.6K]

infrared radiations are used in security alarms. in these kind of security alarms , when a beam of infrared radiation is blocked by an intruder, it triggers the security alarms for a fixed amount of time.it is used because it is invisible and can not be detected by an intruder.  warm objects emits infrared radiation. this fact is used to detect in dark.

5 0
4 years ago
What is the effect on climate from these factors??
fenix001 [56]
The effect on the climate is that the climate goes up
7 0
4 years ago
Name 5 machine principles​
lidiya [134]

The Wheel & Axle. The wheel has always been considered a major invention in the history of mankind

The Inclined Plane

The Wedge

The Pulley

The Screw

3 0
4 years ago
Other questions:
  • A fold is a _ in a rock , and a fault is a _in a rock?
    13·2 answers
  • A billiard ball travels 20 cm in the positive direction, hits the cushion and rebounds in the negative direction, and finally co
    9·1 answer
  • 7. Explain how changes in temperature affect the particle motion of a substance. (3 points)
    11·1 answer
  • Two circles are drawn in a 12-inch by 14-inch rectangle. Each circle has a diameter of 6 inches. If the circles do not extend be
    10·1 answer
  • Why do you think the velocity of the center of mass does not change
    7·1 answer
  • A dictatorship can also be a democracy ​
    8·1 answer
  • A new concrete mix is being designed to provide adequate compressive strength for concrete blocks. The specification for a parti
    13·1 answer
  • Part A Every force has one and only one 3rd law pair force. Every force has one and only one 3rd law pair force. true false Requ
    12·1 answer
  • As light shines from air to water, the index of refraction is 1.02 and the angle of incidence is 38.0 °. What is the light's an
    7·1 answer
  • Explain how the water in the puddle forms part of the water cycle?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!