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A certain lightbulb has a tungsten filament having a resistance of 16 ? at 22°C and 155 ? when hot. Assume R = R0[1 + ?(T - T0)] can be used over the large temperature range here. Find the temperature of the filament when it is hot.
Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +10q. Sphere B carries a charge of -7q. Sphere C carries no net charge. How much charge ends up on sphere C
a mass at the origin is pulled by four perpendicular ropes, with a force of 10N in the direction of the positive y axis, 8N to the positive x axis, What is the angle at which the force is acting
An unstrained horizontal spring has a length of 0.25 m and a spring constant of 180 N/m. Two small charged objects are attached to this spring, one at each end.
The wheel of a car has a radius of .350 m. the engine of the car applies a torque of 295 Nxm to this wheel that does not slip against the road surface.
A disk and a hoop of the same mass and radius are released at the same time at the top of an inclined plane. The height of the incline is 0.71m, Calculate the speed of the disk at the bottom of the inclined plane
A thin uniform rod (mass = 1.95 kg) swings about an axis that passes through one end of the rod, What is the length of the rod
The flywheel of an engine has a moment of inertia 2.40- {rm kg} cdot {rm m}^{2} about its rotation axis. What is its final kinetic energy.
A spaceship is approaching a space station at a speed of 2.0 105 m/s. The space station has a beacon that emits green light with a frequency of 5.93 1014 Hz. What is the change in this frequency
Calculate the maximum gravity anomaly at ground level over a buried anticlinal structure, modelled by a horizontal cylinder with radius 1000 m and density contrast 200 kg/m^3
A series RLC circuit contains a 125.0 O resistor, a 35.0 µF capacitor and a 70.0 mH inductor. What is the peak voltage across the capacitor
A spacecraft consists of a 32500 kg engine and a 12600 kg nosecone. How fast is the nosecone moving
We have studied diffraction from a single slit, where light is sent through a thin opening. how thick was this strand of hair
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