Major HELP PLEASE !!! 1. 1. During a particular thunderstorm, the electric poten

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Major HELP PLEASE !!!

1.      1. During a particular thunderstorm, the electric potential difference between a cloud and the ground is Vcloud - Vground = 4.80 108 V, with the cloud being at the higher potential. What is the change in an electron's electric potential energy when the electron moves from the ground to the cloud?
J

2.      2. A particle with a charge of ?1.6 ?C and a mass of 1.7 10-6 kg is released from rest at point A and accelerates toward point B, arriving there with a speed of 43 m/s. The only force acting on the particle is the electric force.

(a) Which point is at the higher potential?

point A point B     

Give your reasoning.

.    Negative charge accelerates from a lower potential to a higher potential.

Negative charge accelerates from a higher potential to a lower potential.   

(b) What is the potential difference VB ? VA between A and B?
V

3.      3. An electric car accelerates for 8.0 s by drawing energy from its 310-V battery pack. During this time, 1140 C of charge passes through the battery pack. Find the minimum horsepower rating of the car.
hp

4.      4. A moving particle encounters an external electric field that decreases its kinetic energy from 9730 eV to 7400 eV as the particle moves from position A to position B. The electric potential at A is -49.5 V, and the electric potential at B is +29.3 V. Determine the charge of the particle. Include the algebraic sign (+ or ?) with your answer.
C

5.      5. A particle is uncharged and is thrown vertically upward from ground level with a speed of 24.4 m/s. As a result, it attains a maximum height h. The particle is then given a positive charge +q and reaches the same maximum height h when thrown vertically upward with a speed of 30.1 m/s. The electric potential at the height h exceeds the electric potential at ground level. Finally, the particle is given a negative charge ?q. Ignoring air resistance, determine the speed with which the negatively charged particle must be thrown vertically upward, so that it attains exactly the maximum height h. In all three situations, be sure to include the effect of gravity.
m/s

6.      6. Two point charges, +3.72

  

   During a particular thunderstorm, the electric potential difference between a cloud and the ground is Vcloud - Vground = 4.80 108V, with the cloud being at the higher potential. What is the change in an electron's electric potential energy when the electron moves from the ground to the cloud? A particle with a charge of ?1.6 ?C and a mass of 1.7 Description: if 10-6kg is released from rest at point A and accelerates toward point B, arriving there with a speed of 43 m/s. The only force acting on the particle is the electric force. Which point is at the higher potential? point A point B Give your reasoning. Negative charge accelerates from a lower potential to a higher potential. Negative charge accelerates from a higher potential to a lower potential. What is the potential difference VB ? VA between A and B? An electric car accelerates for 8.0 s by drawing energy from its 310-V battery pack. During this time, 1140 C of charge passes through the battery pack. Find the minimum horsepower rating of the car. A moving particle encounters an external electric field that decreases its kinetic energy from 9730 eV to 7400 eV as the particle moves from position A to position B. The electric potential at A is -49.5 V, and the electric potential at B is +29.3 V. Determine the charge of the particle. Include the algebraic sign (+ or ?) with your answer. A particle is uncharged and is thrown vertically upward from ground level with a speed of 24.4 m/s. As a result, it attains a maximum height h. The particle is then given a positive charge +q and reaches the same maximum height h when thrown vertically upward with a speed of 30.1 m/s. The electric potential at the height h exceeds the electric potential at ground level. Finally, the particle is given a negative charge ?q. Ignoring air resistance, determine the speed with which the negatively charged particle must be thrown vertically upward, so that it attains exactly the maximum height h. In all three situations, be sure to include the effect of gravity. Two point charges, +3.72 mu C and -5.55 mu C, are separated by 1.10 m. What is the electric potential midway between them? The drawing shows a square, each side of which has a length of L = 0.25 m. Two different positive charges q1 and q2 are fixed at the corners of the square. Find the electric potential energy of a third charge q3 = -4.47 Description: 10-8C placed at corner A and then at corner B. FOR # 7 THERE IS A SQUARE BOX LABELED B ON TOP LEFT AND A ON TOP RIGHT q1 = +1.5 * 10^-9 C q2 = +4.0*10^-9 C

Explanation / Answer

5.

Particle of mass m and velocity v = 24.4 m/s

KE =

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