Can someone help me with this but give details please? (it's a physics class)

Physics

1 answer:

tino4ka555 [31]3 years ago

5 0

Answer:

The question is basically asking you to research a instrument that provides scientific-physical terms like sound waves. It also says to explain how different types of instruments provide different tones.(Hint: Sound waves)

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A transmission system at a radio station uses a/an _______ to convert a direct current into a high frequency alternating current

Vinvika [58]

A transmission system at a radio station uses an oscillator to convert a direct current into a high frequency alternating current. Direct current or DC is the current in which the flow of the charge is one directional. In case of alternating current or AC, the flow of the charge reverses direction after a period of time.
In regards to the second question, a unit for measuring frequency is the hertz. So the correct answer to the given question is option “B”.

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4 years ago

Read 2 more answers

A+10 u charge and a -10 4C (1 HC - 106 C), at a distance of 0.3 m,

Marina CMI [18]

Answer:

B. Attract each other with a force of 10 newtons.

Explanation:

Statement is incorrectly written. The correct form is: A $+10\,\mu C$ charge and a $-10\,\mu C$ at a distance of 0.3 meters.

The two particles have charges opposite to each other, so they attract each other due to electrostatic force, described by Coulomb's Law, whose formula is described below:

$F = \frac{\kappa \cdot |q_{A}|\cdot |q_{B}|}{r^{2}}$ (1)

Where:

$F$ - Electrostatic force, in newtons.

$\kappa$ - Electrostatic constant, in newton-square meters per square coulomb.

$|q_{A}|,|q_{B}|$ - Magnitudes of electric charges, in coulombs.

$r$ - Distance between charges, in meters.

If we know that $\kappa = 8.988\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}}$ , $|q_{A}| = |q_{B}| = 10\times 10^{-6}\,C$ and $r = 0.3\,m$ , then the magnitude of the electrostatic force is: