1) In a pond, you move a stick up and down 4 times a second and...
1) In a pond, you move a stick up and down 4 times a second and notice that the outgoing waves have peak to peak distance of 20 cm, and amplitude around 0.1m. How long does it take one of the waves to travel 2 m away from the source?
2) A 2 C charge is moving 3m/s west in a magnetic field that points toward the north. The magnetic field has strength 2 T. Find the force (magnitude and direction) on the charge.
Homework Answers
2. A proton gun shoots a proton straight up away from the surface of the earth...
2. A proton gun shoots a proton straight up away from the surface of the earth at a speed of 5.0x10 m/s into a 0.20 T uniform magnetic field that points north. What is the magnitude and direction of the magnetic force on the proton the moment it enters this magnetic field? 3. A charged dust particle with a charge of -8.0x10-6 C drifts down under the influence of gravity until it enters a region with a uniform magnetic field....
1. The stack of magnets works as one big bar magnet. Do the poles change when...
1. The stack of magnets works as one big bar magnet. Do the poles change when you divide the magnet into pieces? 2. In step 3 of the experiment, do both sides of the magnet attract the metal surface? Explain how a single magnet can repel the rest of the stack, but still stick to the other surface. 3. How does the magnet attract something that is originally non?magnetic? 1. Describe the direction of the compass needle as you moved...
power source, establish a current in the swing. We are interested only in the lower section...
power source, establish a current in the swing. We are interested only in the lower section (seat) of the swing here. You will need to make sure you understand the interactions so that you can determine the direction of the current through the swing's "seat". There is a very strong magnet with the North pole on top and the South pole underneath the current carrying wire. Your charge here is to observe the effect on the swing, i.e. the direction...
1. If the electric field in an EM wave in free space has a peak magnitude...
1. If the electric field in an EM wave in free space has a peak magnitude of 8.7×10−5V/m, what is the peak magnitude of the magnetic field strength? B0 = _________ T 2. A 1500-nF capacitor with circular parallel plates2.0 cm in diameter is accumulating charge at the rate of 39.0 mC/s at some instant in time. a) What will be the induced magnetic field strength 12.5 cm radially outward from the center of the plates? B1 = _______ T...
A battery with V = 9.0 volts is connected to two identical but unknown capacitors as...
A battery with V = 9.0 volts is connected to two identical but unknown capacitors as in the figure. The charge drawn up from the battery to completely charge up the initially uncharged capacitors was 99 micro C. What is the capacitance of each capacitor C? Question options: 4.4 micro F 11 micro F 5.5 micro F 22 micro F 2.2 micro F Question Protons move clockwise around a circular path of radius 27 cm in a magnetic field of...
Fores-arrying wire in seleratiefel We will win tapi bene in en wich you can by connecting...
Fores-arrying wire in seleratiefel We will win tapi bene in en wich you can by connecting leaders of the wing here. You will need to make me you understand the chat you con determine the directed the camera. There is a very with the Northpoleon and the Southpole under the carrying in your Charge bere there the effort ce the wing the dece of the forece the wing Chance that notion, and then the making of the male for finding...
2. Consider a charged particle in a magnetic field. Let -e = -1.60 x 10-191C) be...
2. Consider a charged particle in a magnetic field. Let -e = -1.60 x 10-191C) be an electron, under B=0.1T) of a uniform magnetic field directed out of the page direction (o-direction). At t = 0[sec] the particle is at the origin, and the initial velocity is toward positive y direction. (a) Sketch the initial configuration of this electron (-e at the origin) into (x,y)-plane. Applying the right hand rule, indicate the magnetic force on this moving electron. Note that...
Can someone please help me with D and E. Constants Part A To understand the magnetic...
Can someone please help me with D and E.
Constants Part A To understand the magnetic force on a straight current-carrying wire in a uniform magnetic field. Magnetic fields exert forces on moving charged particles, whether those charges are moving independently or are confined to a current- carrying wire. The magnetic force Fon an individual moving charged particle depends on its velocity and charge er. In the case of a current-carrying wire, many charged particles are simultaneously in motion, so...
1 pts Question 1 Select all of the following that are true about magnets and magnetic...
1 pts Question 1 Select all of the following that are true about magnets and magnetic fields. the source of magnetic fields is net motion of charged particles the South pole of a bar magnet can be separated from the North pole to make two monopoles like magnetic poles IS and S, or N and N) repel and opposites attract IN and S) □ magnetic field lines always form closed loops magnetic fields are scalars a straight wire with current...
Here's a cool example: Permanent magnets. If B are produced by currents, then what's up with...
Here's a cool example: Permanent magnets. If B are produced by currents, then what's up with permanent magnets? You don't have to plug them in, they just work. What's the current? One idea is that it could be the e' orbiting the nucleus. A charge moving in a circular loop is a sort of current. (You'll calculate this in Problem 30.6) Let's estimate the speed of the e' using Newton's Laws: the only force is the Coulombo attraction, and we'll...
2. A proton gun shoots a proton straight up away from the surface of the earth at a speed of 5.0x10 m/s into a 0.20 T uniform magnetic field that points north. What is the magnitude and direction of the magnetic force on the proton the moment it enters this magnetic field? 3. A charged dust particle with a charge of -8.0x10-6 C drifts down under the influence of gravity until it enters a region with a uniform magnetic field....
power source, establish a current in the swing. We are interested only in the lower section (seat) of the swing here. You will need to make sure you understand the interactions so that you can determine the direction of the current through the swing's "seat". There is a very strong magnet with the North pole on top and the South pole underneath the current carrying wire. Your charge here is to observe the effect on the swing, i.e. the direction...
Fores-arrying wire in seleratiefel We will win tapi bene in en wich you can by connecting leaders of the wing here. You will need to make me you understand the chat you con determine the directed the camera. There is a very with the Northpoleon and the Southpole under the carrying in your Charge bere there the effort ce the wing the dece of the forece the wing Chance that notion, and then the making of the male for finding...
2. Consider a charged particle in a magnetic field. Let -e = -1.60 x 10-191C) be an electron, under B=0.1T) of a uniform magnetic field directed out of the page direction (o-direction). At t = 0[sec] the particle is at the origin, and the initial velocity is toward positive y direction. (a) Sketch the initial configuration of this electron (-e at the origin) into (x,y)-plane. Applying the right hand rule, indicate the magnetic force on this moving electron. Note that...
Can someone please help me with D and E.
Constants Part A To understand the magnetic force on a straight current-carrying wire in a uniform magnetic field. Magnetic fields exert forces on moving charged particles, whether those charges are moving independently or are confined to a current- carrying wire. The magnetic force Fon an individual moving charged particle depends on its velocity and charge er. In the case of a current-carrying wire, many charged particles are simultaneously in motion, so...
1 pts Question 1 Select all of the following that are true about magnets and magnetic fields. the source of magnetic fields is net motion of charged particles the South pole of a bar magnet can be separated from the North pole to make two monopoles like magnetic poles IS and S, or N and N) repel and opposites attract IN and S) □ magnetic field lines always form closed loops magnetic fields are scalars a straight wire with current...
Here's a cool example: Permanent magnets. If B are produced by currents, then what's up with permanent magnets? You don't have to plug them in, they just work. What's the current? One idea is that it could be the e' orbiting the nucleus. A charge moving in a circular loop is a sort of current. (You'll calculate this in Problem 30.6) Let's estimate the speed of the e' using Newton's Laws: the only force is the Coulombo attraction, and we'll...
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