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earnstyle [38]
3 years ago
9

Why couldn't nawaz hear the bell when the air had been pumped out of the jar?​

Physics
1 answer:
dybincka [34]3 years ago
4 0

Answer:

DUE TO PRESENCE OF PRESSURIZED AIR

Explanation:

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Calculate the potential V(r) for r>rb. (Hint: The net potential is the sum of the potentials due to the individual spheres.)
Marat540 [252]

Answer:

The potential for r > rb is equal to zero.

Explanation:

For r > rb, the potential is:

V=\frac{Kq}{r}

Then, the net potential is:

V_{(r)} =\frac{K(+\epsilon )}{r} +\frac{K(-\epsilon )}{r}

K=\frac{1}{4\pi \epsilon _{o}  }

V_{(r)} =\frac{K(+\epsilon )}{r} -\frac{K(\epsilon )}{r}\\V_{(r)}=0

8 0
4 years ago
A race car goes from a complete stop at the start line to 150 miles per hour in 5 seconds. What is its acceleration? Show your w
qwelly [4]

Answer:

Explanation:

150/5  = 30

30mph per 1 second

3 0
3 years ago
Find the magnitude of the angular momentum of the second hand on a clock about an axis through the center of the clock face. Ass
Naddika [18.5K]

Answer:

L = 4.711 *10^{-6} kg m2/s

Explanation:

i =\frac{ml^3}{3}

= \frac{0.00*.15^2}{3}

   =4.5*10^-5

angular velocity

\omega = \frac{2\pi}{60}

             = 0.1047 rad/s

the angular momentum,

L = I\omega

L = 4.5*10^{-5}* 0.1047 rad/s

L = 4.711 *10^{-6} kg m2/s

3 0
3 years ago
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Work out the area of a rectangle with base, b=20mm and perimeter, p=50mm
Korvikt [17]

Answer:

100mm²

Explanation:

the other side: (50 - 20 × 2) ÷ 2 = 5

5 × 20 = 100

7 0
3 years ago
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Which of the following is described here? "Point your skis straight down the fall line with your skis parallel and about a foot
elena55 [62]

answer d. down hill schussing

Explanation:

I took the quiz

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3 years ago
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