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alina1380 [7]
3 years ago
5

Many hard-of-hearing people like sound compressed because they remain sensitive to ________ sounds. prolonged high-pitched frequ

ent unpredictable loud
Physics
1 answer:
pychu [463]3 years ago
7 0

Answer:

loud

Explanation:

Noise exposure results in a decrease in the sensitivity of auditory sensory cells thereby affecting the hearing ability of the concerned.

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Answer:

Explanation:

Given

mass of tree stump is M

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velocity of bullet is v

Conserving momentum for bullet and tree stump

Initial Momentum P_i=mv

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Final Momentum P_f=(M+m)v_0

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A pilot wishes to flt his planne to an airport north of his current location
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Answer:

Time = 2758.62 seconds

Explanation:

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A rigid tank contains 7 kg of an ideal gas at 5 atm and 30c. a valve is opened, and half of mass of the gas can escape. the fin
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The equation of state for an ideal gas is
pV=nRT
where p is the gas pressure, V the volume, n the number of moles, R the gas constant and T the temperature.

The equation of state for the initial condition of the gas is
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While the same equation for the final condition is
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We know that in the final condition, half of the mass of the gas is escaped. This means that the final volume of the gas is half of the initial volume, and also that the final number of moles is half the initial number of moles, so we can write:
V_1 = 2 V_1
n_1 = 2 n_2
If we substitute these relationship inside (1), and we divide (1) by (2), we get
\frac{p_1}{p_2} = \frac{T_1}{T_2}

And since the initial temperature of the gas is T_1 = 30 C=303 K, we can find the final temperature of the gas:
T_2 = T_1  \frac{p_2}{p_1}=(303 K) \frac{1.5 atm}{5.0 atm}=90.9 K
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