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riadik2000 [5.3K]
3 years ago
11

AM signals travel as changes in?

Physics
1 answer:
gtnhenbr [62]3 years ago
3 0
It definitely changes in frequency. For example if the frequency is medium the signals change after the sunset and it changes in the ionosphere cause medium frequency travels in the skywave. 
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Name three ways electricity can be produced.​
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water

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fossil fuels

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If you run with an average speed of 3.9 meters per second for 1,200 seconds, then what distance will you have traveled?
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A grinding wheel 0.35 m in diameter rotates at 2600 rpm .
ddd [48]

It is calculated that a)The angular velocity of the wheel is 272.13 rad/s,

b)On the edge of the grinding wheel, the linear speed is 47.62 m/s,

and c) On the edge of the grinding wheel, the acceleration is 12958.08 m/s².

Calculation of angular velocity, linear speed & acceleration:

Provided that,

the diameter of the wheel = 0.35 m

So, the radius, r = 0.35/2 = 0.175 m

As 1 revolution = 2π rad

(a)the angular velocity, ω = 2600 rpm = \frac{2600 * 2\pi }{60} rad/s

⇒ω = 272.13 rad/s

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⇒v = 0.175 * 272.13

⇒v= 47.62 m/s

(c)The angular acceleration, a=\frac{v^{2} }{r}

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brainly.com/question/13649539

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6 0
2 years ago
Which marine habitats would have the least access to primary producers?
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4 0
2 years ago
Find the resistance of a stereo: current is 7 A voltage is 49 V.
pochemuha

Answer:

R = 7 [amp]

Explanation:

To solve this problem we must use ohm's law which tells us that the voltage is equal to the product of the current by the resistance. In this way, we have the following equation.

V = I*R

where:

V = voltage = 49 [V] (units of volts)

I = current = 7 [amp] (amperes)

R = resistance [ohms]

Now clearing R.

R =V/I

R = 49/7

R = 7 [amp]

5 0
3 years ago
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