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A 62g hollow copper cylinder is 10cm long and has an inner diameter of 1.0cm. The current density along the length of the cylinder is 150,000 A/m2. What is the current in the cylinder?
A thin slab of charge (length L, width W, and surface charge density σ) lies along the x-y plane. Supose you want to calculate the electric field at the point z above the origin. Show me the e
Find the maximum torque exerted on the coil when the wire is used to make a single turn square coil and a two turn square coil.
Two point charges q1 = +12µC and q2 = -16µC are separated by a distance of 0.20 m. (a) On the line connecting them, find all points where the electric field is zero.
Horizontal Conductor A horizontal conductor that is part of a power line carries a current of 7400 A from south to north.
a.) What is the smallest angle between the magnetic field and the normal to the plane of the coil? b.) make a drawing that shows how this coil would be oriented relative to the magnetic field. be su
When a different particle with an electric charge of +4.00 × 10-12 C enters the velocity selector traveling east, the net force (due to the electric and magnetic fields) acting on it is 1.90 &t
A physical pendulum is constructed using a 2.15 kg object having a moment of inertia of 23.9 kg-m2 about its center of mass. The rotation (suspension) point is 862 cm from the center of mass. What i
A 1.5 volt battery is placed in a circuit made with a cylindrical copper wire bent in the shape of a right triangle with the sides measured as shown below. The wire has a diameter of 0.171 mm and th
The combined blob+box swing up through a certain angle and then back down again. What is the maximum angle made by the rope, as measured from the verticle?
A 15-loop circular coil 22 cm in diameter lies in the xy plane. The current in each loop of the coil is 7.6 A clockwise, and an external magnetic field B = ( 0.55 i + 0.60 j - 0.65 k ) T passes thro
An apple drops from the tree and falls freely. The apple is originally at rest a height {H_0} above the top of the grass of a thick lawn, which is made of blades of grass of height {h}.
The student has a mass of 67.0 kg, and the height of the water slide is 12.7 m. If the kinetic frictional force does -5.80 103 J of work, how fast is the student going at the bottom of the slide.
Alice hears both the sound waves that have traveled through the wire (wave 1) and those that have traveled through the air (wave 2), bypassing the wire. Which wave arrives sooner and by how much?
A power plant burns coal and generates an average of 660.0 Megawatts (MW) of electrical power while discharging 990.00 MW as waste heat. Find the total electrical energy generated by the plant in a
If the magnetic field has a magnitude of 412 µT and is in the positive x direction, find the (a)x, (b)y, and (c)z components of the electric field. Give your answers in V/m.
A 3.49 kg, 25.33 cm diameter turntable rotates at 221 rpm on frictionless bearings. Two 700 g blocks fall from above, hit the turntable simultaneously at opposite ends of a diagonal, and stick. What
The speed of the first block immediately afterward is 5.05 m/s. What is the speed of the second block after the bullet stops in it?
As noted in the chapter, the cosmic microwave background radiation fits the Planck equations for a blackbody at 2.7 K. (a) What is the wavelength at the maximum of the spectrum of the background radia
A second, identical billiard ball is shot west at 1.04 m/s. The balls have a glancing collision, not a head-on collision, deflecting the second ball by 90° and sending it north at 1.42 m/s. What
Two ice skaters, with masses of 53.5 kg and 75.9 kg, are at the center of a 56.28-m-diameter circular rink. The skaters push off against each other and glide to opposite edges of the rink. If the he
At the center of a 59-m-diameter circular ice rink, a 77 kg skater traveling north at 2.45 m/s collides with and holds onto a 58 kg skater who had been heading west at 3.62 m/s. aHow long will it t
If the tennis ball and racket are in contact for 8.12 ms, what is the average force that the racket exerts on the ball? How does this compare to the gravitational force on the ball?
A 22.75 g ball of clay traveling east at 2.85 m/s collides with a 36.02 g ball of clay traveling north at 2.41 m/s. What is the speed of the resulting 58.77 g ball of clay?
A 296 g bird flying along at 6.57 m/s sees a 8.8 g insect heading straight toward it with a speed of 34.87 m/s. The bird opens its mouth wide and enjoys a nice lunch. What is the bird's speed immedi