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A thin spherical shell has a radius of 4 m and a mass of 225 kg, and its center is located at the origin of a coordinate system. Another thin spherical shell with a radius of 3 m and mass 211 kg is inside the larger shell with its center at 0.35 m on the x axis. What is the gravitational force of attraction between the two shells?
Suppose that 1.05 108 J of this energy flows directly into the surroundings (engine block and exhaust system) in the form of heat. If 6.0 105 J of work is required to make the car go one mile, expalin how many miles can the car travel on one ga..
Force F = -13jhatN is exerted on a particle at r = (3ihat+5jhat)m. What is the torque on the particle about the origin
A very long, thin straight line of charge has a constant charge density of 20 pC/cm. How far does the electron go before it comes back
When at rest, two trains have sirens that emit a frequency of 300 Hz. The trains travel toward one another, What is the speed of the second train
Falling light. According to general relativity and the equivalence principle, light is bent by gravity. Determine the time it takes for the light to strike the ground
A disk of mass M and radius R rotates around the z axis with angular velocity wI. What is the ratio of the initial to the final kinetic energies of the two-disk system
An observation satellite orbits the planet at a height of 1000 . What is the projectile's speed as it passes the satellite?
A rope pulls on the lower block in the figure with a tension force of 20 N. What is the acceleration of the 2.0 kg block
A hollow spherical shell has mass 7.85kg and radius 0.220m. What is the kinetic energy of the shell after it has turned through 7.00rev
Students hypothesized that by running the electric current through the wire of the apparatus shown here, they could cause the non-magnetic nail to exhibit magnetic properties. What would be a reasonable way to test this.
A small object with a mass of 333 mg carries a charge of 30.0 nC and is suspended by a thread between the vertical plates of the parallel-plate capacitor. The plates are separated by 2cm.
A 120 V rms voltage at 60 Hz is applied across a 10 uF capacitor and an unknown resistor. what is the value of the resistor
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