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iogann1982 [59]
2 years ago
9

Ammonia gas occupies a volume of 0.450 L at a pressure of 96 kPa. What

Physics
1 answer:
Sauron [17]2 years ago
6 0

Answer:

0.426 L

Explanation:

Boyles law is expressed as p1v1=p2v2 where

P1 is first pressure, v1 is first volume

P2 is second pressure, v2 is second volume.

Given information

P1=96 kPa, v1=0.45 l

P2=101.3 kpa

Unknown is v2

Making v2 the subject from Boyle's law

v2=\frac {p1v1}{p2}

Substituting the given values then

v2=\frac {96*0.45}{101.3}=0.4264560710760l\approx 0.426 l

Therefore, the volume is approximately 0.426 L

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Llana [10]

Answer:

v_f=41.65\frac{m}{s}

Explanation:

The final velocity is given by the following kinematic equation:

v_f=v_0+at

Here, v_0 is the initial velocity, a is the body's acceleration and t is the motion time. We have to convert the time to seconds:

7.5min*\frac{60s}{1min}=450s

Now, we calculate the final velocity:

v_f=3.4\frac{m}{s}+(0.085\frac{m}{s^2}(450s))\\v_f=41.65\frac{m}{s}

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Explanation:

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3 years ago
A 2.5-m-long steel shaft of 30-mm diameter rotates at a frequency of 35 Hz. Determine the maximum power that the shaft can trans
Phantasy [73]

Answer:

P=58.3kW

Explanation:

Given data

Length L=2.5 m

Radius R=d/2=30/2 = 15 mm

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Torque based on allowable angle of twist

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Allowable torque

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T=(πGc⁴Ф)/2

T=\frac{\pi (77.2*10^{9} )(0.015)^{4}(130.90*10^{-3} ) }{2}\\ T=265.07N.m

Maximum Power Transmitted

Maximum power transmitted is given by

P=2\pi fT\\P=2\pi (35)(265.07)\\P=58262.386watt\\P=58.3kW

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3 years ago
Two waves have the same frequency. What other characteristic must be the same for these waves?.
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The wave characteristic that is the same for both waves is wavelength.

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  • When two waves of the same frequency and amplitude interfere constructively, their peaks and troughs align as shown in diagram A above. As a result, the original waves' amplitude is doubled, resulting in a sound wave that is twice as loud.

Thus, Equal frequencies are shared by two waves moving through the same region in the same direction.

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Explain why a fire engine’s siren sounds lower in pitch after the fire engine passes you.  
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3 years ago
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