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
DanielleElmas [232]
3 years ago
13

What is a voltage source

Physics
1 answer:
Jlenok [28]3 years ago
8 0
A voltage source is a two terminal device which can maintain a fixed voltage.
You might be interested in
What is the Creation Mandate?​
Ilia_Sergeevich [38]
Is the divine injunction found in Genesis 1:28, in which God, after having created the world and all in it, ascribes to humankind the tasks of filling, subduing, and ruling over the earth.
3 0
3 years ago
A grating whose slits are 3.2x10^-4 cm apart produces a third-order fringe at a 25.°0 angle. What is the wavelength of light tha
Ber [7]

Answer:

The light used has a wavelenght of 4.51×10^-7 m.

Explanation:

let:

n be the order fringe

Ф be the angle that the light makes

d is the slit spacing of the grating

λ be the wavelength of the light

then, by Bragg's law:

n×λ = d×sin(Ф)

λ = d×sin(Ф)/n

λ = (3.2×10^-4 cm)×sin(25.0°)/3

  = 4.51×10^-5 cm

  ≈ 4.51×10^-7 m

Therefore, the light used has a wavelenght of 4.51×10^-7 m.

7 0
3 years ago
The formula K2S indicates that
jekas [21]
There are two atoms of potassium bonded to one atom of sulfur.
4 0
3 years ago
A ping pong ball with a dent in it can be put into a pan of boiling water. After a short amount of time, the dent will pop out.
kifflom [539]

heat from water goes into air in ball

air expands

ping goes the dent

6 0
3 years ago
Read 2 more answers
Identify which one is chemical change, chemical property,physical change and physical property
Ulleksa [173]

Answer:

Heat conductivity: Physical property

Silver tarnishing: chemical change

Sublimation: physical change

Magnetizing steel: physical property

Length of a metal object: physical property

Shortening melting: physical property

exploding dynamite: chemical change

combustible: chemical property

water freezing: physical change

Acid resistance: chemical property

brittleness: physical property

milk souring: chemical change

baking bread: chemical change

Explanation:

First you need to understand the differences between physical and chemical change; physical and chemical property.

<u>Physical properties vs chemical properties:</u>

Physical properties are properties that you can observe without changing the substance's composition. This means you can measure these properties without changing them chemically.

Chemical properties, on the other hand, are properties are not as direct. These properties are generally determined by the way the react with other substances changing their composition.

<u>Physical changes vs chemical changes:</u>

A substance that undergoes physical change does not change in chemical composition. They may look physically different in terms of size and shape, but overall, their chemical composition remains constant. The best example would be water. Water can change phases, from solid to liquid when they melt. Essentially, they look like different substances, but the change is only physical and not chemical.

Chemical change, is different by the fact that they change in chemical composition. Bonds are broken and/or made through the reaction, which changes them not only physically but chemically as well. Some of the most indicative signs of a chemical change occurring are: change in color, odor, production of gas, production of light/heat.

4 0
3 years ago
Other questions:
  • Plz answer #2 plz this is 8th grade science / physics
    14·1 answer
  • How long will it take to go 150 km [E] traveling at 50 km/hr?
    12·2 answers
  • A sinusoidal electromagnetic wave is propagating in a vacuum in the +z-direction.
    6·1 answer
  • A ball thrown horizontally at 18.5 m/s from the roof of a building lands 38.9 m from the base of the building.
    12·1 answer
  • What's a definition of caught​
    7·1 answer
  • 2. Adelia holds a shiny steel spoon with its back (convex surface) facing her eyes at a distance
    15·1 answer
  • What is CGS and SI unit of weight?​
    13·1 answer
  • - Explain why an aircraft will tend to lose height
    11·1 answer
  • you and a friend setup an umbrella and chairs at a beach. your friend goes into the surf zone while you relax on the sand. sever
    14·1 answer
  • A ball is kicked at a speed of 16m/s at 33° and it eventually returns to ground level further down field.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!