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jek_recluse [69]
2 years ago
5

The driver then tests the brakes on the car and safely comes to a complete stop with constant acceleration from 26.8 meters per

second in only 32.3 meters.
A. What is the magnitude and direction of the cars acceleration?

B. How much time did the car travel under this constant acceleration before stopping?
Physics
1 answer:
Temka [501]2 years ago
5 0

Answer:

62.78

Explanation:

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Consider the uniform electric field E = (8.0ĵ + 2.0 ) ✕ 103 N/C. What is its electric flux (in N · m2/C) through a circular area
cluponka [151]

Answer:

5.09 x 10⁵ Nm²/C

Explanation:

The electric flux φ through a planar area is defined as the electric field Ε times the component of the area Α perpendicular to the field. i.e

φ = E A

From the question;

E = (8.0j + 2.0k) ✕ 10³ N/C

r = radius of the circular area = 9.0m

A = area of a circle = π r²           [Take π = 3.142]

A = 3.142 x 9² = 254.502m²

Now, since the area lies in the x-y plane, only the z-component of the electric field is responsible for the electric flux through the circular area.

Therefore;

φ = (2.0) x 10³ x 254.502

φ = 5.09 x 10⁵ Nm²/C

The electric flux is 5.09 x 10⁵ Nm²/C

4 0
2 years ago
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vitfil [10]

Answer:

A

Explanation:

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As I is constant

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B2 = 2mT*\frac{18}{21}

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I suppose it's C. All the other answers are everything but accurate to me
6 0
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leva [86]
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