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Alisiya [41]
3 years ago
9

In some region of space, the electric field is given by E = Axi + By2j. Find the electric potential difference between points wh

ose positions are (xi, yi) = (a, 0) and (xf, yf) = (0, b). The constants A, B, a, and b have the appropriate SI units. (Use the following as necessary: A, B, a, and b.)
Physics
1 answer:
FinnZ [79.3K]3 years ago
4 0

Answer:

Explanation:

- dV / dr = E

- dV = E dr

dV = - E dr

V = - ∫E.  dr

= -∫(Axi + By2j)idx+dyj)

- -∫ Axdx --∫ B y² dy

= - A x² /2 - B y³ / 3

Limit is from 0 to a for x and from b to 0 for y.

= A a² / 2 - B x b³/3 Answer

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Complete Question

A truck going 15 km/h has a head-on collision with a small car going 30 km/h. Which statement best describes the situation?

A. the truck has the greater change of momentum because it has the greater mass

B. the car has the greater change of momentum because it has the greater speed

C. neither the car nor the truck changes its momentum in the collision because momentum is conserved

D. they both have the same change in magnitude of momentum because momentum is conserved

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Answer:

D. They both have the same change in magnitude of momentum because     momentum is conserved

Explanation:

In order to get a good understanding of the solution above we define some

concetps

   Momentum

This is defines quantified motion and can be mathematically represented as  

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