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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 0.86m. Calculate the speed of the disk at the bottom of the inclined plane. Calculate the speed of the hoop at the bottom of the inclined plane.
A camera lens has a focal length of 50.0 mm and an aperture setting of 4.00. What is the aperture diameter of this lens
You have a grindstone ( a disk) that is 84.0 kg, has a .307-mradius, and is turning at 104.0 rmp, How many turns wil the stone make before coming to rest
A 54 kg ice skater is moving at 39 m/s when she grabs theloose end of a rope, the opposite end of which is tied to apole. What is the ratio of this force to her weight
Two long parallel wires are 6cm apart and carry currents of 3 and 9amps resepctively in opposite directions
A thin, square, conducting plate 42.0 cm on a side lies in the xy plane. A total charge of 4.20 10-8 C is placed on the plate. You may assume the charge density is uniform. (a) Find the charge density on each face of the plate. C/m2 (b) Find the elec..
A squirrel falls from a very tall tree. Initially at t= 0), the squirrel is at the top of the tree, a distance y 50 m above the ground. Estimate the average velocity of the squirrel
what is the magnitude of the electric field at the point 3.15 - 2.05 4.15 m if the electric potential is given by v
a 2.00 -long 480 rope pulls a 6.00 block of ice across a horizontal frictionless surface. the block accelerates at 2.00
What is the volume of the bubble when it reaches just below the surface of the lake, where temperature is 20°C.
A 17.0 kgbucket of water is suspended by a rope wrapped around a windlass,that is a solid cylinder 0.500 m indiameter with mass 11.0 kg. What is the tension in the rope while the bucket is falling
The weight of the atmosphere above 1 m^2 of Earth's surface is about 100,000 N. Density of course, become less with altitude. But suppose the density of air were a constant 1.2 kg/m^3. Calculate where the top of the atmosphere would be.
A solid circular disk has a mass of 1.2 kg and a radius of 0.12 m. Each of three identical thin rods has a mass of 0.16 kg. Find the moment of inertia of the stool
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