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The space between two concentric conducting spherical shells of radii b = 1.70 cm and a = 1.20 cm is filled witha substance of dielectric constant κ = 20.8. A potentialdifference V = 15.0 V is applied across the inner andouter shells. Determine (a) the capacitance of the device, (b) the free charge q (in C) on the inner shell, and (c) the charge q (inC) induced along the surface of the inner shell.
Explain why heat can only be transferred from a hot object to a cold object and not the other way around.
7.0 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 3.1 m/s2, find the force exerted by the rope on the bucket
An incompressible fluid is flowing through a pipe with a constriction. The pipe is on an incline with an angle of 30.0 degrees. The narrow section is 10.0 m (as measured along the pipe) from the wide section and the narrow section is higher than t..
A block of mass 0.25 kg connected to a spring with spring constant 34 N/m is oscillating on a frictionless horizontal surface. What is the total energy of the system
a long wire carrying a 5.5 a current perpendicular to the xy-plane intersects the x-axis at x-2.0cm. a second parallel
A skateboarder shoots off a ramp with a velocity of 6.6m/s directed at an angle of 58 degrees above the horizontal. The end of the ramp is 1.2m above the ground. Let the x axis be parallel to the ground,+y direction be vertically upward, and take ..
In her bathroom, Mindy has an overhead heater that consists of a coiled wire made of nichrome that gets hot when turned on. When the heater is first turned on, it has not yet heated up, so it is operating at 20° C. What is the current through the wi..
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.13 x 104 m/s, and the radius of the orbit is 3.77 x 106 m. What is the orbital speed of the second satellite
a 0.646 m string is clamped at both ends. if the lowest standing wave frequency in the string is 326 hz what is the
Two metal rods of equal length-one aluminum, the other stainless steel-are connected in parallel with a temperature of 10.0 Celsius at one end and 114 Celsius at the other end. Determine the length the rods must have
A roller coaster, traveling with an initial speed of 15 meters per second, decelerates uniformly at -7.0 meters per second2 to a full stop
A microscope has an objective lens of focal length 6.75 mm. The objective forms an image 16.4 cm from the lens. How far from the objective should the object be placed
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