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3 years ago

Are there any steps of the rock cycle that do not connect directly to one another

Physics

1 answer:

dybincka [34]3 years ago

6 0

Answer:

The three main rock types are igneous, metamorphic and sedimentary.

The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation.

Any rock can transform into any other rock by passing through one or more of these processes. This creates the rock cycle.

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The charge on an electron is −1.6×10−19 C. The charge on a proton is equal in magnitude, but positive. The electron's mass is 9.

prisoha [69]

A) The acceleration of the electron is $1.0\cdot 10^{23} m/s^2$ towards the proton

B) The electric field magnitude at the electron's location is $5.76\cdot 10^{11} N/C$

C) 2. The electric field in an atom is much greater than the dielectric strength of air

Explanation:

In order to find the acceleration of the electron, we need to find the force acting on it first.

The force on the electron is the electrostatic force between the proton and the electron, which is given by:

$F=k\frac{q_1 q_2}{r^2}$

where:

$k=8.99\cdot 10^9 Nm^{-2}C^{-2}$ is the Coulomb's constant

$q_1 = 1.6\cdot 10^{-16}C$ is the charge of the proton

$q_2 = -1.6\cdot 10^{-19}C$ is the charge of the electron

$r=5.0\cdot 10^{-11}m$ is the distance between the electron and the proton

Substituting,

$F=(8.99\cdot 10^9) \frac{(1.6\cdot 10^{-19})(-1.6\cdot 10^{-19})}{(5.0\cdot 10^{-11})^2}=-9.2\cdot 10^{-8} N$

where the negative sign indicates the direction of the force is towards the proton (attractive).

Now we can find the acceleration of the electron using Newton's second law:

$a=\frac{F}{m}$

where

F is the force

$m=9.11\cdot 10^{-31} kg$ is the electron mass

Substituting,

$a=\frac{-9.2\cdot 10^{-8}}{9.11\cdot 10^{-31}}=-1.0\cdot 10^{23} m/s^2$

where the negative sign means the direction is towards the proton.

The magnitude of the electric field due to a single-point charge is given by

$E=k\frac{q}{r^2}$

where

$k=8.99\cdot 10^9 Nm^{-2}C^{-2}$ is the Coulomb's constant

q is the charge

r is the distance from the charge at which the field is calculated

Here we have:

$q=1.6\cdot 10^{-19}C$ (proton charge)

$r=5.0\cdot 10^{-11} m$ (location of the electron with respect to the proton)

Therefore, the magnitude of the electric field is

$E=(8.99\cdot 10^9)\frac{1.6\cdot 10^{-19}}{(5.0\cdot 10^{-11})^2}=5.76\cdot 10^{11} N/C$

The electric field at which the air begins to spark is

$E_b = 3\cdot 10^6 N/C$

While the electric field in the atom (at the location of the electron), calculated in part B, si

$E=5.76\cdot 10^{11} N/C$

By comparing the two fields, we observe that

$E_b$

which means that the correct statement is

2. The electric field in an atom is much greater than the dielectric strength of air

Learn more about atoms:

brainly.com/question/2757829

#LearnwithBrainly

6 0

3 years ago

A capacitor consists of two concentric cylinders. The inner cylinder has a radius of 0.001 m and the outer cylinder a radius of

AlexFokin [52]

Answer:

The capacitance is 1.75 nF

Explanation:

From the question we are given that

The inner radius is $r_{in} = 0.001$

The outer radius is $r_{out} = 0.0011 \ m$

Length of the capacitor is $L = 1m$

The dielectric constant is $Di = 2 \ for \ 0 < \phi < \pi$

The dielectric constant is $Di_2 = 4 \ for \ \pi < \phi < 2\pi$

Generally the capacitance of a capacitor can be mathematically represented as

$C = \frac{\pi \epsilon_0 Di_1 L}{ln\frac{r_{out}}{r_{in}} } + \frac{\pi \epsilon_0 Di_2L}{ln\frac{r_{out}}{r_{in}} }$

$= \frac{\pi \epsilon_0 L (Di_1 + Di_2)}{ln\frac{r_{out}}{r_{in}} }$

$= \frac{(3.142)(8.85*10^{-12})(1)(2+4)}{ln\frac{0.0011}{0.001} }$

$=1.75*10^{-9} F$

$1.75nF$

5 0

3 years ago

A 0.20 mass on a horizontal spring is pulled back a certain distance and released. The maximum speed of the mass is measured to

olga55 [171]

Answer:

Explanation:

Ya gon find the Kenitic Energy first

K=½mv²===> K=½×0.2×(0.2)²===> 0.1(0.04)===> 0.004

and now the replacement:

0.004=½×0.4V²====> v²=0.02===> V=0.14m/s

4 0

3 years ago

The equivalent resistance of a series combination of resistors is always greater than any individual resistance

Likurg_2 [28]

Answer:

true

Explanation:

Series resistors are additive

r1 + r2 + r3 = r total the total will always be greater than any one of the parts

8 0

2 years ago

Vanessa made a list comparing the differences between the outer coverings in plants and animals, but she made a mistake. Read th

GaryK [48]

The skin is NOT a reproductive organ and the spines attract predators are the incorrect statements.

<h3>Why the list is incorrect?</h3>

The list is incorrect because skin is not a reproductive organ and the spines do not attract predators towards each other. Skin protects the body from the outer environment whereas the spines repel the predators from the plant body.

So we can conclude that the skin is NOT a reproductive organ and the spines attract predators are the incorrect statements.

Learn more about skin here: brainly.com/question/306377

#SPJ1

8 0

2 years ago