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3 years ago

Every surface has different ____________________ of friction.

Physics

1 answer:

dedylja [7]3 years ago

3 0

Answer:

amounts

Explanation:

every surface has different amounts of friction

hope this helps :) plz brainliest?

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Radio astronomers detect electromagnetic radiation at 44.0 MHz from an interstellar gas cloud. They suspect this radiation is em

Shtirlitz [24]

Answer:

The magnetic field strength is $B = 1.57*10^{-3} \ T$

Explanation:

The objective of the solution is to obtain the magnetic field strength inside the gas cloud and in order to do so we would be employing the mathematical expression of magnetic field strength which is represented as

$B = \frac{2 \pi f m}{q}$

Where B is the magnetic field strength

f is the frequency

m is the mass

q is the charge

From the question

$f = 44.0MHz = 44.0*10^{6}Hz$

Generally the mass of an electron which is the is particle

$m = 9.11*10^{-31}kg$

And the charge q is generally

$q= 1.6*10^{-19} C$

Note that this electromagnetic radiation with frequency 44.0MHz is a moving electron mass

substituting these values into the equation for the magnetic field strength

$B = \frac{2 \pi (44*10^{6})(9.11*10^{-31})}{1.6*10^{-19}} = 1.57*10^{-3} T$

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4 years ago

How does gravity work in space? Please help!

vampirchik [111]

Answer:

gravityis an invisible force that pulls objects toward each other. So, the closer objects are to each other, the stronger their gravitational pull is. Earth's gravity comes from all its mass .

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2 years ago

________ found that electric and magnetic energy move in waves.

GrogVix [38]

<span>James Clerk Maxwell is the answer</span>

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4 years ago

Which of the following best describes each particle?

Nana76 [90]

Answer:

C. Protons are positive, neutrons are neutral, and electrons are negative

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3 years ago

describe how you would connect a voltmeter to measure the potential difference across a resistor and an ammeter to measure the c

Vesna [10]

A voltmeter needs to be connected in parallel to the two sites in order to measure the potential difference between them.

<h3>What is a voltmeter?</h3>

The electrical potential difference between two locations in an electric circuit is measured using a voltmeter.
The potential difference between two ends of a current-carrying conductor is measured using a voltmeter.
On a scale that is typically measured in volts, millivolts (0.001 volts), or kilovolts, a voltmeter primarily monitors the voltage of direct or alternating electric current (1,000 volts).
Numerous voltmeters are digital and display readings as numbers.

<h3>How is a voltmeter connected?</h3>

A galvanometer with high resistance is a voltmeter.
Any portion of an electrical circuit can be measured.
Due to its high resistance, it is linked in parallel so that it does not impact the circuit's overall net resistance and does not draw any current by itself.
A device's voltage is measured by a voltmeter connected in parallel, and its current is measured by an ammeter connected in series.

Learn more about voltmeters here

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2 years ago