An object having a net charge of 25.0 µC is placed in a uniform electric field of 620 N/C directed vertically. What is the mass of this object if it "floats" in the field?

Answers

Answer 1
Answer:

Answer:

Mass of the object, m=1.58* 10^(-3)\ kg

Explanation:

It is given that,

Charge on an object, q=25\ \mu C=25* 10^(-6)\ C

Electric field, E = 620 N/C

We need to find the mass of this object. Let m is the mass of the object. It can be calculated as :

ma=qE

m=(qE)/(a), here a = g (as it is vertically downward)

m=(25* 10^(-6)* 620)/(9.8)

m = 0.00158 kg

m=1.58* 10^(-3)\ kg

So, the mass of the object is 1.58* 10^(-3)\ kg. Hence, this is the required solution.


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Answers

Answer:

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What can you infer from the fact that metals are good conductors of electricity?

Answers

Answer:

Knowing that these metals are infact good conductors of electricity we can infer that metals are able to hold and conduct certain temperatures. Another thing we can infer is that these good conductors can be used in connection to transferring energy or electricity.

Metals are an excellent conductor of electricity and heat because the atoms in the metals form a matrix through which outer electrons can move freely. Instead of orbiting their respective atoms, they form a sea of electrons that surround the positive nuclei of the interacting metal ions.

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Answers

Answer:

\lambda=1282nm

Explanation:

The wavelength of the photons emitted due to an  atomic electron transition in a hydrogen atom, is given by the Rydberg formula:

(1)/(\lambda)=R_H((1)/(n_1^2)-(1)/(n_2^2)})

Here R_H is the Rydberg constant for hydrogen and n_1,n_2 are the lower and higher quantum number for the energy levels of the  atomic electron transition, respectively. Replacing the given values and solving for \lambda

(1)/(\lambda)=1.097*10^7m^(-1)((1)/(3^2)-(1)/(5^2)})\n(1)/(\lambda)=7.81*10^5m^(-1)\n\lambda=(1)/(7.81*10^5m^(-1))\n\lambda=1.282*10^(-6)m\n\lambda=1.282*10^(-6)m*(1nm)/(10^(-9)m)\n\lambda=1282nm

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Answers

The measurement will be significantly affected.

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Which of the following sets of characteristics describe what we know about the outer planets? (2 points)Lowest daily average temperature, smaller in size and few or no moons.
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Gaseous composition, larger size and many moons.

Answers

Gaseous composition, larger size and many moons describe about the outer planets.

What are outer planets?

Jupiter, Saturn, Uranus, and Neptune are the four outer planets. They are all gas giants consisting primarily of hydrogen and helium. Their interiors are liquid and contain thick gaseous outer layers. Numerous moons and planetary rings consisting of dust and other particles are present on every one of the outer planets.

To know more about outer planets refer to :

brainly.com/question/18392639

#SPJ2

Answer: D

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Answers

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