# physicsa 6a

A charge of 28.0 is placed in a uniform electric field that is directed vertically upward and that has a magnitude of 4.00×104 . What work is done by the electric force when the charge moves

1. 👍 0
2. 👎 0
3. 👁 204
1. You need to provide units for the charge and the E-field. I assume they are Coulombs and Volts/meter, but unless you say what they are, you have not asked a proper physics question.

The work done on the charge will depend upon how far it moves.

1. 👍 0
2. 👎 0
posted by drwls
2. I am so sorry my computer didn't transfer it
28nC
4.00*10^4N/C
.550m to the right

1. 👍 0
2. 👎 0
posted by Sally
3. The force on the particle is
E*q = 4*10^4 N/C * 28*10^-9 C.

Multiply that by 0.550 m for the work done, in Joules.

(Volts/meter and Newtons/Coulomb are equivalent units)

1. 👍 0
2. 👎 0
posted by drwls
4. thnak you! Can you please help me with this one as well? Its the same problem:
2.40 at an angle of 45.0 downward from the horizontal?

1. 👍 0
2. 👎 0
posted by Sally
5. sorry again my computer..2.4m

1. 👍 0
2. 👎 0
posted by Sally
6. The work done will equal the force times the distance moved vertically (in the direction of the E field). You answer will contain a sin 45 = 0.707 factor.

The force will be up and you are moving the charge down, so potential energy will increase as work is done on the charge.

1. 👍 0
2. 👎 0
posted by drwls

## Similar Questions

1. ### physics

An object having a net charge of 18.2 μC is placed in a uniform electric field of 790 N/C directed vertically upward, i.e. in the direction opposite gravity. What is the mass, in grams, of this object if it "floats" in the field?

asked by Serena on January 21, 2015
2. ### Physics

A charge of 28.0 nC is placed in a uniform electric field that is directed verticall upward and that has a magnitude of 4.00*10^4 N/C. What work is done by the electric force when the charge moves (a)0.450 m to the right (b) 0.670

asked by Harper on January 28, 2008
3. ### Physics

A spring with an unstrained length of 0.075 m and a spring constant of 2.7 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a

asked by Bob on January 28, 2015
4. ### physics

A spring with an unstrained length of 0.074 m and a spring constant of 2.4 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a

asked by frustrated on January 24, 2013
5. ### Physics

A spring with an unstrained length of 0.066 m and a spring constant of 2.3 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a

asked by kjipper on January 28, 2013
6. ### Physics

A spring with an unstrained length of 0.076 m and a spring constant of 2.6 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a

asked by Jasmine on January 28, 2013
7. ### Physics #43

A spring with an unstrained length of 0.076 m and a spring constant of 2.6 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a

asked by Elizabeth on January 25, 2013
8. ### PHYSICS

A proton, initially traveling in the +x-direction with a speed of 5.30×105m/s , enters a uniform electric field directed vertically upward. After traveling in this field for 4.38×10−7s , the proton’s velocity is directed 45

asked by Mary on January 28, 2014
9. ### physics

An object with a net charge of 35 µC is placed in a uniform electric field of 643 N/C, directed vertically. What is the mass of the object if it floats in the electric field?

asked by carla on February 5, 2010
10. ### Physics

An object with a net charge of 20 µC is placed in a uniform electric field of 627 N/C, directed vertically. What is the mass of the object if it floats in the electric field?

asked by Joey on April 20, 2015

More Similar Questions