Homework Answers
1. A particular atom has same number of protons as number of electrons to make atom neutral. i.e the net charge is ZERO.
Q= 4e-4e =0
2. All other choices are true properties of the electric force. ( It is not a true property of the above choices for electric force properties)
(Rest of the options are correct)
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A particular atom has 4 more protons than electrons. The atom has a net charge of...
Example 15.1 The Forces in a Hydrogen Atom Goal Contrast the magnitudes of an electric force...
Example 15.1 The Forces in a Hydrogen Atom Goal Contrast the magnitudes of an electric force and a gravitational force. Problem The electron and proton of a hydrogen atom are separated (on the average) by a distance of about 5.30 x 1011 m. Find the magnitudes of the electric force and the gravitational force that each particle exerts on the other, and the ratio of the electric force, Fe, to the gravitational force, Fo Strategy Solving this problem is just...
An electric field can induce an electric dipole in a neutral molecule (or atom) by pushing...
An electric field can induce an electric dipole in a neutral molecule (or atom) by pushing the positive and negative charges inside the molecule in opposite directions. The dipole moment of the induced dipole is directly proportional to the electric field at the molecule. That is, p⃗ =αE⃗ , where p⃗ is the induced dipole moment, α is called the polarizability of the molecule, and E⃗ is the electric field at the molecule. A stronger electric field at the molecule results in a...
Inside a particular atom, two protons are 0.7fm apart (equivalent to 7×10−16m). What is the repulsive...
Inside a particular atom, two protons are 0.7fm apart (equivalent to 7×10−16m). What is the repulsive force that these protons exert on each other? *Please answer in Newtons What is the electric potential energy contribution of one proton onto the other? *Please answer in Joules
This is one question - Please correct the following answers. Thanks. Three point charges are arranged...
This is one question - Please correct the following answers.
Thanks.
Three point charges are arranged in a horizontal line as shown below. Find the electric forces (in units of kQ2/R2) on the charges given the following: Q1-45 Q, Q2 r1 3 R, and r22 R. Remember that a positive force points to the right and a negative force points to the left. 4 Q, Q3 =-25 Q, Qs What is the net force on charge Qi? 25 kQ2/R2 The...
solve all parts Three point charges are arranged in a horizontal line as shown below. Find...
solve all parts
Three point charges are arranged in a horizontal line as shown below. Find the electric forces (in units of kQ^2/R^2) on the charges given the following: Q_1 = -80 Q, Q_2 = -4 Q, Q_3 = 36 Q, r_1 = 4 R and r_2 = 2 R Remember that a positive force points to the right and a negative force points to the left. What is the net force on charge Q_1? What is the net force...
Question 3-8 points To the best of our knowledge the magnitudes of the negative charge on...
Question 3-8 points To the best of our knowledge the magnitudes of the negative charge on the electron and the positive charge on the proton are precisely equal. Imagine for the purposes of this question, however, that the charge on the proton is slightly larger than the charge on the electron (a) Do some research and determine (i) the number of electrons and the number of protons in a copper atom, and (ii) the mass of a copper atom. (2...
Will a penny be slightly more massive if it has a negative or a positive net...
Will a penny be slightly more massive if it has a negative or a positive net charge? (Think very small!!) (a) It will be just as massive either way. (b) More massive if negative. (c) More massive if positive. A charged conducting object is brought close to a neutral insulating object. Which of the following is true? (a) The objects will repel. (b) The objects will attract. (c) Nothing will happen, no attraction, no repulsion. (d) The objects will repel...
1. An atom with more electrons than protons is a (positive ion) (Negative ion) (Cation) (Anion)...
1. An atom with more electrons than protons is a (positive ion) (Negative ion) (Cation) (Anion) 2. An atom with fewer electrons than protons is a (positive ion) (Negative ion) (Cation) (Anion) 3. An electric current is a flow of (uncharged Particles) (charged particles) 4. A battery supplies what type of current 5. The current flow in a wire moves from the_ terminal to the termina.l 6. The SI unit of electric charge is the (resistance) (ampere) (ohm) (volt) 7....
What is the universal force that acts on the protons and neutrons of an atom? Electric,...
What is the universal force that acts on the protons and neutrons of an atom? Electric, nuclear, gravitational, or magnetic Which of the following has the largest mass? Which of the following has the smallest mass? Neutron, electron, proton, or a particle Which one of the following IS NOT a property of radon? Unreactive, Nonradioactive, tasteless, or odorless The ultimate source of radon in the environment is from the radioactive decay of naturally occurring Plutonium, xenon, uranium, or carbon...
An electric field can induce an electric dipole in a neutral molecule (or atom) by pushing...
An electric field can induce an electric dipole in a neutral molecule (or atom) by pushing the positive and negative charges inside the molecule in opposite directions. The dipole moment of the induced dipole is directly proportional to the electric field at the molecule. That is, p⃗ =αE⃗ , where p⃗ is the induced dipole moment, α is called the polarizability of the molecule, and E⃗ is the electric field at the molecule. A stronger electric field at the molecule results in a...
Example 15.1 The Forces in a Hydrogen Atom Goal Contrast the magnitudes of an electric force and a gravitational force. Problem The electron and proton of a hydrogen atom are separated (on the average) by a distance of about 5.30 x 1011 m. Find the magnitudes of the electric force and the gravitational force that each particle exerts on the other, and the ratio of the electric force, Fe, to the gravitational force, Fo Strategy Solving this problem is just...
This is one question - Please correct the following answers.
Thanks.
Three point charges are arranged in a horizontal line as shown below. Find the electric forces (in units of kQ2/R2) on the charges given the following: Q1-45 Q, Q2 r1 3 R, and r22 R. Remember that a positive force points to the right and a negative force points to the left. 4 Q, Q3 =-25 Q, Qs What is the net force on charge Qi? 25 kQ2/R2 The...
solve all parts
Three point charges are arranged in a horizontal line as shown below. Find the electric forces (in units of kQ^2/R^2) on the charges given the following: Q_1 = -80 Q, Q_2 = -4 Q, Q_3 = 36 Q, r_1 = 4 R and r_2 = 2 R Remember that a positive force points to the right and a negative force points to the left. What is the net force on charge Q_1? What is the net force...
Question 3-8 points To the best of our knowledge the magnitudes of the negative charge on the electron and the positive charge on the proton are precisely equal. Imagine for the purposes of this question, however, that the charge on the proton is slightly larger than the charge on the electron (a) Do some research and determine (i) the number of electrons and the number of protons in a copper atom, and (ii) the mass of a copper atom. (2...
Will a penny be slightly more massive if it has a negative or a positive net charge? (Think very small!!) (a) It will be just as massive either way. (b) More massive if negative. (c) More massive if positive. A charged conducting object is brought close to a neutral insulating object. Which of the following is true? (a) The objects will repel. (b) The objects will attract. (c) Nothing will happen, no attraction, no repulsion. (d) The objects will repel...
1. An atom with more electrons than protons is a (positive ion) (Negative ion) (Cation) (Anion) 2. An atom with fewer electrons than protons is a (positive ion) (Negative ion) (Cation) (Anion) 3. An electric current is a flow of (uncharged Particles) (charged particles) 4. A battery supplies what type of current 5. The current flow in a wire moves from the_ terminal to the termina.l 6. The SI unit of electric charge is the (resistance) (ampere) (ohm) (volt) 7....
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