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ludmilkaskok [199]
4 years ago
11

One way in which elements differ from each other is the structure of the electron cloud in each element’s atoms. In an electron

cloud, an electron that is farther away from the nucleus has
Physics
2 answers:
dedylja [7]4 years ago
5 0
Electrons that are further away from the nucleus have more energy. As they enter an "excited" state, they jump up orbits.
worty [1.4K]4 years ago
4 0

Answer:

Explanation:

Electron that is farther away from the nucleus have high level of energy because they are in excited state. When the electrons are farther from nucleus then there is decreased interaction between the nucleus and electrons, and thus these electrons can be removed by spending less amount  of energy. Hence we say that they are in excited state.

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ASAP please!! <br>The force vectors on an aircraft are as shown. Find the net (resultant force).
ioda

Answer:

The magnitude of the net force is 5430N

Explanation:

I suggest to define the axes as aligned to the axis of the plane. This will require you to decompose only one vector, namely the Weight. We need two components of the W force: one in horizontal direction of the plane, the other perpendicular to it. Through a simple triangle argument you will se that the plane-horizontal component of W is

W_D=3600 N\cdot\sin 27^\circ=1634N

acting in the direction of the Drag, and the plane-perpendicular component is:

W_L=-3600N\cdot\cos 27^\circ=-3208N

with negative sign since it counteracts the Lift.

So the components of the netforce F are:

F_h=T-D-W_D=(8000-1000-1634)N=5366N\\F_v=L+W_L=(4100-3208)N=829N

The magnitude of the  net force is:

|F|=\sqrt{5366^2+829^2}N = 5430N


6 0
3 years ago
Health organizations monitor the public health of various countries around the globe and set standards for healthy conditions.
kondaur [170]
<span>World Health Organization</span>
3 0
3 years ago
Read 2 more answers
Two balls of equal mass are thrown horizontally with the same initial velocity. They hit identical stationary boxes resting on a
11111nata11111 [884]

Answer:

The box 1 moves faster.

Explanation:

lets

Mass =m  kg

Initial velocity = u m/s

Initial velocity of box = 0 m/s

Let stake mass of block = m

When ball bounces back:

The final speed of the box = v

Final speed of ball = - u

Pi = Pf  ( From linear momentum conservation)

m x u + m x 0 = m ( - u) + m v

mu + mu = m v

v= 2 u

When ball get stuck :

The final speed of ball and box = v

Pi = Pf  ( From linear momentum conservation)

m x u + m x 0 = (m+m) v

v= u /2

So the box 1 moves faster.

6 0
4 years ago
You want to estimate the height of a cathedral ceiling. You note that a pendulum extending from the ceiling almost touches the f
barxatty [35]
<h2>The height of the room is 36 m </h2>

Explanation:

The time period of the pendulum  T = 2π\sqrt{\frac{l}{g} }

here l is the length of pendulum and g is the acceleration of gravity

Thus l = \frac{T^2 g}{4\pi^2 }

and l = \frac{(12)^2 x 10}{4 x 9.8} = 36 m approx

4 0
4 years ago
Automobile air bags use the decomposition of sodium azide as their sources of gas for rapid inflation, represented in the reacti
NeTakaya

Answer : The mass of NaN_3 required is 71.175 grams.

Explanation :

To calculate the moles of nitrogen gas, we use the equation given by ideal gas :

PV = nRT

where,

P = Pressure of nitrogen gas = 763 torr

V = Volume of the nitrogen gas = 40.0 L

n = number of moles of gas = ?

R = Gas constant = 62.364\text{ L.torr }mol^{-1}K^{-1}

T = Temperature of helium gas = 25^oC=273+25=298K

Putting values in above equation, we get:

763torr\times 40.0L=n\times 62.364\text{ L.torr }mol^{-1}K^{-1}\times 298K\\\\n=1.642mol

Now we have to calculate the moles of NaN_3.

The balanced chemical reaction is:

2NaN_3(s)\rightarrow 2Na(s)+3N_2(g)

From the balanced chemical reaction, we conclude that

As, 3 moles of N_2 produced from 2 moles NaN_3

So, 1.642 moles of N_2 produced from \frac{2}{3}\times 1.642=1.095 moles NaN_3

Now we have to calculate the mass of NaN_3.

Molar mass of NaN_3 = 65 g/mol

\text{Mass of }NaN_3=\text{Moles of }NaN_3\times \text{Molar mass of }NaN_3

\text{Mass of }NaN_3=1.095mole\times 65g/mole=71.175g

Therefore, the mass of NaN_3 required is 71.175 grams.

5 0
4 years ago
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