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Darya [45]
3 years ago
14

Which of the following is an example of the conclusion phase of the scientific method?

Physics
1 answer:
Burka [1]3 years ago
5 0

Answer:

a scientist examines the results and answers the lab question- last choice

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The rate of distance traveled per unit of time, without regard to direction
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What is resultant force?
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Free Test Answers!!
Darina [25.2K]

Answer:

Thank you very much.

Explanation:

6 0
3 years ago
Two spherical shells have a common center. A -1.50 × 10-6 C charge is spread uniformly over the inner shell, which has a radius
Murrr4er [49]

Answer:

a) At 0.20 m, the magnitude of the field is 675.0 kV

The direction of the field is acting outwards from the center of the charged spheres

b) At 0.10 m, the magnitude of the field is 135 kV

The direction is acting outwards from the center of the charged spheres

c) At 0.025 m

The magnitude of the field, V = -270.0 kV

The direction of the field is inwards, towards the center of the charged spheres

Explanation:

The charged spherical shell parameters are;

The charge on the inner sphere, q₁ = -1.50 × 10⁻⁶ C

The radius of the inner shell, R₁ = 0.050 m

The charge on the outer sphere, q₂ = +4.50 × 10⁻⁶ C

The radius of the outer shell, R₂ = 0.15 m

Let 'r', represent the distance at which the electric field is measured, the following relationships can be obtained;

When r < R₁ < R₂,

V = k \cdot \left( \dfrac{q_1}{R_1} + \dfrac{q_2}{R_2} \right )

When R₁ < r < R₂,

V = k \cdot \left( \dfrac{q_1}{r} + \dfrac{q_2}{R_2} \right )

When R₁ < R₂ < r,

V = k \cdot \left( \dfrac{q_1  + q_2}{r^2}  \right )

a) When r = 0.20 m, we have;

R₁ < R₂ < r, therefore

V = k \cdot \left( \dfrac{q_1  + q_2}{r^2}  \right )

By plugging in the values, we get;

V = 9 \times 10^9 \times \left( \dfrac{-1.50 \times 10^{-6} + 4.50\times 10^{-6} }{0.20^2}  \right ) = 675.0 \ kV

Therefore, the magnitude of the field, V = 675.0 kV

The direction of the field is outwards

b) When r = 0.10 m, we have;

When R₁ < r < R₂, therefore;

V = k \cdot \left( \dfrac{q_1}{r} + \dfrac{q_2}{R_2} \right )

By plugging in the values, we get;

V = 9 \times 10^9 \times \left( \dfrac{-1.50 \times 10^{-6}  }{0.10}  + \dfrac{4.50\times 10^{-6}}{0.15} \right ) = 135 \ kV

Therefore, the magnitude of the field, V = 135 kV

The direction of the field is outwards from the center

c) When r = 0.025 m, we have;

When r < R₁ < R₂, therefore;

V = k \cdot \left( \dfrac{q_1}{R_1} + \dfrac{q_2}{R_2} \right )

By plugging in the values, we get;

V = 9 \times 10^9 \times \left( \dfrac{-1.50 \times 10^{-6}  }{0.05}  + \dfrac{4.50\times 10^{-6}}{0.15} \right ) = -270 \ kV

Therefore, the magnitude of the field, V = -270.0 kV

The direction of the field is inwards, towards the center of the charged spheres.

4 0
3 years ago
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