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3 years ago

Consider an RLC series circuit. The impedance of the circuit increases if XC increases. TRUE or FALSE

1 answer:

3 0

I don't think I want to go into a lot of detail here, but the answer is
"sometimes true and sometimes false". I believe it depends on the
original difference between XC and XL, before XC began to change.

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The temperature in a room is 56°C what would be the velocity of a soundwave be at this temperature ?

balu736 [363]

Answer:

D. $364.6ms^{-1}$

Explanation:

The speed of sound in dry air is given approximately by

$velocity_(new)=velocity(sound)+0.6*T_(Celcius)\\=331.4+0.6*56\\=364.6ms^{-1}$

5 0

4 years ago

An 18-cm-long bicycle crank arm, with a pedal at one end, is attached to a 20-cm-diameter sprocket, the toothed disk around whic

Tpy6a [65]

Answer:

Part a)

$a = 0.056 m/s^2$

Part b)

$L = 7.85 m$

Explanation:

Part a)

Angular speed of the pedal is changing from 60 rpm to 90 rpm in 10 s

so the angular acceleration is given as

$\alpha = \frac{\omega_2 - \omega_1}{\Delta t}$

so we will have

$\alpha = \frac{2\pi(\frac{90}{60}) - 2\pi(\frac{60}{60})}{10}$

$\alpha = 0.314 rad/s^2$

now the tangential acceleration of the pedal is given as

$a = r \alpha$

$a = 0.18 \times 0.314$

$a = 0.056 m/s^2$

Part b)

Total angular displacement made by the sprocket in the interval of 10 s is given as

$\theta = \frac{\omega_f + \omega_i}{2} t$

$\theta = \frac{2\pi (\frac{90}{60}) + 2\pi (\frac{60}{60})}{2}(10)$

$\theta = 78.5 radian$

now length of the chain passing over it is given as

$L = R\theta$

$L = 0.10 \times 78.5$

$L = 7.85 m$

6 0

4 years ago

Why is endurance training important to you?

Drupady [299]

Answer:

keeps your circulatory system healthy

Explanation:

7 0

3 years ago

Read 2 more answers

Help me, please

Mars2501 [29]

Wish I could help you you rock

6 0

3 years ago

Which has more KE a baseball traveling at 50 mph or a baseball travelling at 100 mph? Explain.

Trava [24]

A baseball traveling at 100 mph has more kinetic energy than a baseball traveling at 50 mph because the kinetic energy = 1/2 x mass x velocity. Since the baseballs should have the same mass, the velocity is what will determine which ball has more kinetic energy. Since the 100 mph baseball has a higher velocity than the 50 mph baseball, it has more kinetic energy.

6 0

3 years ago