Physics, 01.12.2020 22:20 tmiller2862
How does a magnetic field cause electric charges to form an electric current?
A. Negative charges and positive charges are pushed in the same
direction by the magnetic field.
B. Negative charges and positive charges are pushed in opposite
directions by the magnetic field.
C. A force is exerted by the magnetic field on only the positive
charges in the wire.
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D. A force is exerted by the magnetic field on only the negative
charges in the wire.
Answers: 2
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Modify the equation fδt=δ (mv) to find the force of friction.
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Physics, 22.06.2019 11:40
Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?
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Physics, 22.06.2019 19:20
The dipole moment of the water molecule (h2o) is 6.17x10^-30 c.m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?
Answers: 1
Physics, 22.06.2019 23:40
What is the magnitude of the gravitational force acting on the earth due to the sun?
Answers: 1
How does a magnetic field cause electric charges to form an electric current?
A. Negative charges a...
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