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lilavasa [31]
4 years ago
10

If we are viewing the atom in such a way that the electron's orbit is in the plane of the paper with the electron moving clockwi

se, find the magnitude of the electric field that the electron produces at the location of the nucleus (treated as a point).
Physics
1 answer:
Anastaziya [24]4 years ago
5 0

Answer:

The magnitude  of the electric field is 5.1 \times 10^{11}  \frac{N}{C}

Explanation:

Given:

Charge of electron q = 1.6 \times 10^{-19}C

Separation between two charges r = 5.3 \times 10^{-11} m

For finding the magnitude of the electric field,

   E= \frac{kq}{r^{2} }

Where k = 9 \times 10^{9}

   E = \frac{9 \times 10^{9} \times 1.6 \times 10^{-19} }{(5.3 \times 10^{-11} )^{2} }

   E = 5.1 \times 10^{11} \frac{N}{C}

Therefore, the magnitude  of the electric field is 5.1 \times 10^{11}  \frac{N}{C}

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When two objects interact, the change in momentum of the first object is ______ the change in momentum of the second object.
Mariulka [41]

Answer:

A. Equal to and Opposite

Explanation:

           when there is no External force acting on the system of bodies then Net momentum of the system is Conserved .

        Given that there are 2 bodies

         Let  P₁ as first object's momentum

                  P₂ as second object's momentum.

                  Total Momentum =P₁ + P₂

           As there is no external force acying on the system

                 Change in the Total momentum is zero

so,

                  0 = Δ P₁ + ΔP₂

                   ΔP₂ = -ΔP₁

                   negative sign indicates opposite direction.

                       Both are of equal magnitude.

6 0
4 years ago
A certain rain cloud at an altitude of 1.80 km contains 3.20 107 kg of water vapor. How long would it take for a 2.90-kW pump to
kvasek [131]

Answer:

2255 days

Explanation:

height, h = 1.8 km = 1800 m

amount of water, m = 3.2 x 10^7 kg

Power, P = 2.9 kW = 2900 W

Let t be the time taken

Energy required to lift the water,

E = m g h

E = 3.2 x 10^7 x 9.8 x 1800 = 5.65 x 10^11 J

Power, P = Energy / time

t = E / P = (5.65 x 10^11) / 2900

t = 1.95 x 10^8 second

t = 2255 days

thus, the time taken is 2255 days.

7 0
4 years ago
Which receptors are responsible for the production of saliva (A) auditory receptors (B) optic receptors (C) skin receptors (D) t
Fudgin [204]

Answer:

\large \boxed{\sf D. \ taste \ receptors}

Explanation:

When activated, the receptor most likely prompting the production of saliva is the taste receptor. When food enters the mouth, the salivary glands produce the saliva upon the sensation of taste.

8 0
3 years ago
A sample of 20.0 moles of a monatomic ideal gas (γ = 1.67) undergoes an adiabatic process. The initial pressure is and the initi
Alexeev081 [22]
There are some missing data in the text of the exercise. Here the complete text:
"<span>A sample of 20.0 moles of a monatomic ideal gas (γ = 1.67) undergoes an adiabatic process. The initial pressure is 400kPa and the initial temperature is 450K. The final temperature of the gas is 320K. What is the final volume of the gas? Let the ideal-gas constant R = 8.314 J/(mol • K). "

Solution:

First, we can find the initial volume of the gas, by using the ideal gas law:
</span>pV=nRT
<span>where 
p is the pressure
V the volume
n the number of moles
R the gas constant
T the absolute temperature

Using the initial data of the gas, we can find its initial volume:
</span>V_i =  \frac{nRT_i}{p_i} = \frac{(20.0 mol)(8.31 J/molK)(450 K)}{4 \cdot 10^5 Pa} =0.187 m^3
<span>
Then the gas undergoes an adiabatic process. For an adiabatic transformation, the following relationship between volume and temperature can be used:
</span>TV^{\gamma-1} = cost.
<span>where </span>\gamma=1.67 for a monoatomic gas as in this exercise. The previous relationship can be also written as
T_i V_i^{\gamma-1} = T_f V_f^{\gamma-1}
where i labels the initial conditions and f the final conditions. Re-arranging the equation and using the data of the problem, we can find the final volume of the gas:
V_f = V_i  \sqrt[\gamma-1]{ \frac{T_i}{T_f} }=(0.187 m^3) \sqrt[0.67]{ \frac{450 K}{320 K} }=0.310 m^3 = 310 L
So, the final volume of the gas is 310 L.
5 0
3 years ago
5. Relationships in a community can be cooperative or competitive.<br><br> True<br> False
VARVARA [1.3K]

Answer:

True

Explanation:

is the correct answer

3 0
3 years ago
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