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3 years ago

14

A pizza delivery person drives 3 miles North then 5 miles West and then 3 miles South to deliver a pizza. What is the person's d

isplacement?
A. 45 miles
B. 8 miles
C. 11 miles
D. 5 miles west

2 answers:

Anton [14]3 years ago

7 0

Answer: it’s 11

Explanation:

I just did the question

AleksAgata [21]3 years ago

4 0

Answer:11

Explanation:

Just did it

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Which carries information by copying an original sound?

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3 years ago

A 30.0-Î¼F capacitor is connected to a 49.0-Î© resistor and a generator whose rms output is 30.0 V at 60.0 Hz. (a) Find the rms

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Explanation:

Given that,

Capacitor = 30μC

Resistor = 49.0Ω

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Frequency = 60.0 Hz

We need to calculate the impedance

Using formula of impedance

$Z=\sqrt{R^2+X_{c}^2}$ .....(I)

We need to calculate the value of $X_{c}$

Using formula of $X_{c}$

$X_{c}=\dfrac{1}{2\pi f c}$

$X_{c}=\dfrac{1}{2\times\pi\times60.0\times30\times10^{-6}}$

$X_{c}=88.42\ \Omega$

Put the value of $X_{c}$ into the formula of impedance

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$I_{rms}=\dfrac{V}{Z}$

$I_{rms}=\dfrac{30.0}{101.08}$

$I_{rms}=0.30\ A$

The rms current in the circuit is 0.30 A.

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Using formula of rms voltage

$V_{rms}=I_{rms}\times R$

Put the value into the formula

$V_{rms}=0.30\times49.0$

$V_{rms}=14.7\ V$

The rms voltage drop across the resistor is 14.7 V

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$V_{rms}=I_{rms}\times X_{C}$

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