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4 years ago

12

If you have the p (charge per volume) value for a thick charged insulating cylindrical shell how do you find the linear density?

The problem doesn't give the length of the shell but it does have an infinite charged line running through the axis of the shell.

1 answer:

velikii [3]4 years ago

8 0

You can multiply the charge per unit volume by the base area of the cylinder to obtain the linear density.

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There are four major auto routes from boston to detroit and six from detroit to los angeles. how many major auto routes are ther

Ilia_Sergeevich [38]

For each route from Boston to Detroit, there are 6 possible routes to Los Angeles.
Therefore if there are 4 routes from Boston to Detroit, the number of routes from Boston to Los Angeles is
4*6 = 24
The diagram shown below illustrates the possible routes.

Answer: 24

6 0

3 years ago

The speed of sound is 346m/s if a sound wave travels at a frequency of 55hz what would it’s wavelength be

algol [13]

Answer:

6.29 m

Explanation:

The speed of a wave is equal to frequency times wavelength, so to find wavelength you'd have to divide frequency by both sides, speed(346) divided frequency(55) = 6.29 m

I'm not so sure about this let me know if I'm wrong

3 0

3 years ago

An undamped 2.47 kg2.47 kg horizontal spring oscillator has a spring constant of 32.8 N/m.32.8 N/m. While oscillating, it is fou

olganol [36]

Answer:

0.631 m

6.53315 J

Explanation:

m = Mass = 2.47 kg

v = Velocity = 2.30 m/s

k = Spring constant = 32.8 N/m

A = Amplitude

In this system the energy is conserved

$\dfrac{1}{2}mv^2=\dfrac{1}{2}kA^2\\\Rightarrow A=\sqrt{\dfrac{mv^2}{k}}\\\Rightarrow A=\sqrt{\dfrac{2.47\times 2.3^2}{32.8}}\\\Rightarrow A=0.631\ m$

The amplitude is 0.631 m

Mechanical energy is given by

$E=\dfrac{1}{2}mv^2\\\Rightarrow E=\dfrac{1}{2}2.47\times 2.3^2\\\Rightarrow E=6.53315\ J$

The mechanical energy is 6.53315 J

5 0

3 years ago

Kepler's third law is founded on a mathematical formula that is based on the inverse relationship between a planet's orbital vel

Cloud [144]

Kepler's third law is founded on a mathematical formula that is based on
the inverse relationship between a planet's orbital velocity and its distance
from the sun.

4 0

4 years ago

Read 2 more answers

Qual a massa de água a 45 °C que devemos misturar com 200 g de água a 15 °C, para que o sistema entre em equilíbrio térmico a 35

Stells [14]

Responda:

400 g

Explicação:

Dado o seguinte:

Deixe Mass (m1) = m em t1 = 45 ° C

Massa (m2) = 200g em t2 = 15 ° C

Equilíbrio térmico (T) = 35 ° C

Usando a relação:

m1 * C * ΔT = m2 * C * ΔT

Onde m1 e m2 são as massas; C = capacidade de calor específico da água e ΔT é a mudança de temperatura

m1 * ΔT = m2 * ΔT

m * (45 ° C - 35 ° C) = 200 * (35 ° C - 15 ° C)

10 * m = 200 * 20

10 * m = 4000

m = 4000/10

m = 400g

5 0

3 years ago