If you were to cut a small permanent bar magnet in half, a) one piece would be a magnetic north pole and the other piece would be a magnetic south pole b) neither piece would be magnetic c) each piece would itself be a smaller bar magnet with both magnetic north and south poles d) each piece would contain magnetic north and south poles, but the intensity of the poles may not be the same 2. which of the following is an accurate statement: a) magnetic field lines originate and terminate at north and south poles respectively b) a magnetic field, by definition, is tangent to the direction of the magnetic force on a moving charge at a given point in space -c) the magnetic force on a moving charge does not change its energy d) the magnetic force on a current-carrying wire is greatest when the wire is parallel to the magnetic field 3. the earth's northern magnetic pole acts like a) the north pole of a magnet b) the south pole of a magnet c) it has a positive charge d) it has a negative charge 4. a square loop of wire carrying a current in a clockwise direction lies in the plane of the paper. the magnetic field inside the loop is directed: a) out of the paper everywhere b) into the paper everywhere c) into the paper near the wire, out of the paper elsewhere d) out of the paper near the wire, into the paper elsewhere 5. a wire carrying a current to the right in the plane of the paper lies in a magnetic field perpendicular to the paper. the magnetic force on the wire is n the direction: a) toward the top of the paper b) toward the bottom of the paper c) out of the paper ~ d) need more information
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Physics, 22.06.2019 20:30, helpmeplz33
The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?
Answers: 2
Physics, 23.06.2019 09:00, Arellano2373
This event is the result of a sudden vertical offset in the ocean floor and is most often the result of plate movement on the ocean floor. it destroys coast lines and coastal settlements. what is the event called that causes this type of physical damage? a. volcano b. tsunami c. landslide d. liqufication pls !
Answers: 3
Physics, 24.06.2019 02:50, jalisabarnes12401
An automobile radiator may be viewed as a cross-flow heat exchanger with both fluids unmixed. water, which has a flow rate of 0.05 kg/s, enters the radiator at 400 k and is to leave at 330 k. the water is cooled by air that enters at 0.75 kg/s and 300 k. (a) if the overall heat transfer coefficient is 200 w/ m2 k, what is the require heat?
Answers: 3
If you were to cut a small permanent bar magnet in half, a) one piece would be a magnetic north pole...
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