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A conducting shell, of inner radius a and outer radius b, has a total charge +Q. A point charge -3Q is positioned at the center of the shell. (a) Find the electric field in all space. (b) Find the
The turntable's angular acceleration is 2.83 rad/s2. How long after you turn on the turntable will the penny begin to slide off of the turntable?
Ignoring the container and the equilibrium vapor pressure of the liquid at 56.1 °C, find the ratio of the mass of steam to the mass of ice. The specific heat capacity of steam is 2020 J/(kg C&de
A box and it's contents have a total mass M. A string passes through a hole in the box and you pull on the string with a constant force F (this is in outer space there are no other forces acting).
The uniform 30 mT magnetic field in the figure points in the positive z-direction. An electron enters the region of magnetic field with a speed of 5.0×106 m/s and at an angle of 30° above t
Find the angle of incidence θR at which the red light is totally internally reflected from the second face of the prism.
What is the volume flow rate of the petroleum along the pipe and what is the pipe's diameter at the refinery?
A spherical shell of copper with an outer diameter of 13 cm floats on water with 75% of its volume above the water's surface.
An object 5 cm high is located 75 cm from a converging lens (X1 = 75 cm) of focal length f1 = 50 cm. What must be the focal length f2 of the second lens so that the final image appears on the screen?
Determine the wave functions and the general expression for the angular frequency of the normal modes. What is the angular frequency of the (lowest lying) fundamental mode?
If the object is now moved along the axis to a great distance (essentially an infinite distance) from the mirror, where is the image now formed?
Show that the energy flux of the reflected wave plus the energy flux of the transmitted wave equals the energy flux of the incident wave. The energy flux of a wave is given by the energy density tim
Consider a small cuckoo clock in which the length of the pendulum is L, suspending a mass m with a period of oscillation T. The clock is powered by a falling weight (mass = M) which falls 2 m betwe
At what distance from a proton is the magnitude of its electric field 2.3×105? What is the magnitude of the electric field at a point 0.65 away from a point charge of +7.0?
What is magnitude of the difference in frequency between the waves emitted by gun and those that are reflected back by the car.
What is the kinetic energy of the electron assuming it started from rest and that there is no loss of energy to friction?
What is the orbital angular momentum of a proton in a g9/2 orbit? What is the parity of this orbit?
Radio amateurs are permitted to communicate on the 10-meter band. What frequency of radio waves corresponds to a wavelength of 10 meters? The speed of radio waves is 3 x 108 m/s.
You begin running directly toward one of the speakers, and you measure a beat frequency of 10Hz. How fast are you running?
Take time to look through WebLink 7.4 on Elizabeth Loftus. She is a highly respected, premier researcher in the area of memory and its reliability. Be sure to read through the article "Misinformatio
In one cycle a heat engine absorbs 450 J from a high-temperature reservoir and expels 320 J to a low-temperature reservoir. If the efficiency of this engine is 60% of the efficiency of a Carnot engi
A 310 turn solenoid with a length of 22.0 cm and a radius of 1.70 cm carries a current of 2.10 A. Use Ampere's law to calculate the initial magnetic field in the middle of the 310 turn solenoid.
Transverse waves with a speed of 43.0 m/s are to be produced on a stretched string. A 5.35-m length of string with a total mass of 0.0600 kg is used. What is the required tension in the string?
In 3-5 sentences, Comment on the issue of children and TV. Is television harmful for children? Should children be allowed to watch television? What kind? Why or why not?