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
Bogdan [553]
3 years ago
12

We use electrical devices that produce motion, light, and sound. Which aspect of energy explains why these devices are possible?

Physics
2 answers:
matrenka [14]3 years ago
7 0

Answer:B

Explanation: If energy could be changed from one form to another we wouldn’t need different devices.

Lesechka [4]3 years ago
6 0

Answer:

B. Energy can change from one form to another.

You might be interested in
Where might you look on the internet to find good scientific information about illness
user100 [1]
It depends on what illness and what country you are in but Mayo Clinic and Johns Hopkins are good sources.
5 0
3 years ago
Read 2 more answers
Runner x starts 50 feet in front of runner z and moves with a velocity of 8.0 m/s. At what speed would runner z have to run to c
Mariulka [41]

Answer:

15.625

Explanation:

8 0
3 years ago
A prism is a cut piece of clear glass or plastic in the form of a triangular prism that separates white light into a spectrum th
vovangra [49]

Answer:

transparent i think

Explanation:

a prism is a cut piece of clear glass or plastic in the form of a triangular prism that separates white light into a spectrum through ----------?

8 0
3 years ago
You are a geologist studying the electrical field on a given region. You find that the electric field is vertical and perpendicu
Xelga [282]

Answer:

charge      Qint = 7.17 10⁻⁴ C

Explanation:

For this problem we must use Gauss's law

       F = ∫ E. dA = Qint / εₙ

let's form a Gaussian surface that is parallel to the surface, for example, a Cube. As the field is vertical and perpendicular to the surface, the field lines and the area vector are parallel whereby the scalar product is reduced to an ordinary product.

    Φ = E A = Qint / ε₀

   

    A = 1 km² (1000 m / 1km)² = 1 10⁶ m²

We can calculate the charge

    Qint = E A ε₀

    Qint = 81 1 10⁶ 8.85 10⁻¹²

    Qint = 7.17 10⁻⁴ C

5 0
3 years ago
Which type of reaction is shown in this energy diagram?
valentinak56 [21]

Answer:

Option C

Explanation:

The graph shows endothermic reaction because the reactants are lower in energy and the products are higher is energy. Endothermic reactions absorb energy having products with higher energy.

5 0
4 years ago
Read 2 more answers
Other questions:
  • The mantle in the earths core continuously heat up and cool down using convection currents
    5·2 answers
  • An astronomer sees two stars in the sky. Both stars are equally far from Earth, but the first star is brighter than the second s
    13·2 answers
  • A car accelerates at 4 m/s2 for 5 seconds. the direction of its acceleration is due east (east = positive direction). if its ini
    7·1 answer
  • A rock at the edge of a 200-m high cliff has more potential energy than an equal sized rock at the edge of a 600-m high cliff.
    9·1 answer
  • If the radio waves that are sent from the speed gun have a frequency of 400,000,002 Hz and the radio waves reflected off an appr
    14·1 answer
  • Considerable scientific work is currently under way to determine whether weak oscillating magnetic fields such as those found ne
    6·1 answer
  • Jonah finds a rusty nail outside. The nail is an example of _____.
    12·2 answers
  • Air is a solution of 78% nitrogen, 21% oxygen and 1% other gases. Which part of this solution is the solvent?
    13·2 answers
  • What is liquid pressure? and tell me its si unit please ​
    14·2 answers
  • Two blocks of the same mass but made of different material slide across a horizontal, rough surface and eventually come to rest.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!