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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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What is the average velocity of a car if it travels from position 25m to a position of -7m in 34 seconds?
zubka84 [21]

Answer:

vp = 0.94 m/s

Explanation

Formula

Vp = position/ time

position: Initial position - Final position

Position = 25 m - (-7 m) = 25 m + 7 m = 32 m

Then

Vp = 32 m / 34 seconds

Vp = 0.94 m/s

6 0
3 years ago
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A mass of 8 kg moves at a rate of 14.3 m/sec. what is the KE developed by the mass?
Lynna [10]
Kinetic energy is the energy associated with the motion of an object. It's a scalar quantity, there is no direction associated with KE and it has no components. KE =  \frac{mv ^{2} }{2} =  \frac{8 *14.3 ^{2} }{2} = 4 *204.49 = 817.96J. Therefore Kinetic energy is 817.96J.
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Instructions
RideAnS [48]
A group of students toured a limestone cave in northwest Georgia.
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C. Animals burrowed into the rock.

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3 years ago
How is sound produced ​
Dafna11 [192]

Sounds are created when something vibrates (shakes back and forth), sending waves of vibrations into the ears of the listener. When a bell is struck, the metal vibrates. The vibrations travel through the air as sound waves.

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7 0
2 years ago
When a man walks across the carpet and reaches for the door knob, why does he get shocked? doorknob Question 3 options: There is
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The imbalance of electric charges within or on the surface of a material or between materials is known as static electricity. When you grab a doorknob, electrons jump from your hand to the knob .which conducts electricity, giving you a shock.

<h3>What is static electricity?</h3>

The imbalance of electric charges within or on the surface of a material or between materials is known as static electricity.

The charge will persist until it can be moved away by an electric current or an electrical discharge.

when we walk on the carpet with socks our feet slide electrons off the carpet.  it leads to leaving you with a slightly negative static charge.

When you grab a doorknob electrons jump from your hand to the knob which conducts electricity giving you a shock.

Due to the static electricity jump from your hand to the knob .which conducts electricity giving you a shock.

To know more about static electricity refer to the link ;

brainly.com/question/821085

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3 years ago
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