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BartSMP [9]
3 years ago
11

What is vertical displacement

Physics
2 answers:
nataly862011 [7]3 years ago
5 0
Distance in the y direction.
iVinArrow [24]3 years ago
4 0
In tectonics, vertical displacement<span> is the shifting of land in a </span>vertical<span> direction, resulting in a long term change in elevation. Two types of </span>vertical displacement<span> are uplift, an increase in elevation, and subsidence, a decrease in elevation.</span>
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An open-topped freight car with mass 24,000 kg is coasting without friction along a level track. It is raining very hard, and th
skelet666 [1.2K]

Answer:

(a) v = 3..6 m/s

(b) The rain falling downward has been able to affect the horizontal motion of the car by reducing it's velocity from 4 m/s to 3.6 m/s.

Explanation:

from the question we have the following:

mass of the car (Mc) = 24,000 kg

initial velocity of the car (u) = 4 m/s

mass of water (Mw) = 3000 kg

final velocity of the car (v) = ?

(a) we can calculate the final momentum of the car by applying the conservation of momentum where

initial momentum = final momentum

Mc x U = (Mc + Mw) x V

24000 x 4 = (24000 + 3000) x v

96,000 = 27000v

v =3.6 m/s

(b) The rain falling downward has been able to affect the horizontal motion of the car by reducing it's velocity from 4 m/s to 3.6 m/s.

7 0
3 years ago
A toy rocket fires its engines to launch it straight up from rest. After a short time, the engine turns off and the
madreJ [45]

Answer:

at 10 seconds.. b/c that's when the velocity stops increasing..

Explanation:

8 0
3 years ago
Which equation would you use to calculate how much work is done in pushing a rock to the edge of the cliff?
Natalka [10]

Answer:

d

Explanation:

d because a b c are energy equation not work

4 0
2 years ago
In a sound wave, molecules of air become more closely spaced and less closely spaced as the air is disturbed. Sound waves are __
Novosadov [1.4K]
C.....................
5 0
3 years ago
By what factor is the intensity of sound at a rock concert louder than that of a whisper when the two intensity levels are 120 d
Kipish [7]

Answer:

The intensity of sound at a rock concert is louder than that of a whisper by a factor of 1 x 10¹⁰

Explanation:

Given;

rock concert sound intensity level, β₁ = 120 dB

whisper sound intensity level, β₂ = 20 dB

The sound intensity level is given as;

\beta = 10Log(\frac{I}{I_o} )\\\\

where;

I₀ is the threshold sound intensity of hearing = 10⁻¹² W/m²

I is the sound intensity

Intensity of sound at rock concert ;

120 =  10Log(\frac{I}{10^{-12}} )\\\\12 =  Log(\frac{I}{10^{-12}} )\\\\10^{12} = \frac{I}{10^{-12}}\\\\I = 10^{12}  * 10^{-12}\\\\I = 10^0\\\\I = 1 \ W/m^2

The intensity of sound of a whisper;

20 =  10Log(\frac{I}{10^{-12}} )\\\\2 =  Log(\frac{I}{10^{-12}} )\\\\10^{2} = \frac{I}{10^{-12}}\\\\I = 10^{2}  * 10^{-12}\\\\I = 10^{-10} \ W/m^2\\\\

Determine the factor by which the intensity of sound at a rock concert louder than that of a whisper

\frac{I_{Concert}}{I_{whisper}} = \frac{1}{10^{-10}} \\\\\frac{I_{Concert}}{I_{whisper}} = 1 * 10^{10}\\\\I_{Concert} = 1 * 10^{10}*I_{whisper}

Therefore, the intensity of sound at a rock concert is louder than that of a whisper by a factor of 1 x 10¹⁰

3 0
3 years ago
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