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A bullet with an initial velocity of 280 meter per second in the +x-direction penetrates an initially stationary block of mass 11 kilogram and emerges on the other side with a final velocity of 70 meter per second in the +x-direction. The velocity of the block after the collision is 0.2 meter per second, also in the +x-direction. Suppose the block slides on a horizontal frictionless surface.
Evaluate what is the mass of the bullet?
a wooden carving has 1/2 g of carbon in it and the 14C decay rate has been measured to be 4 decays/min. how old is the carving
A 5.63 kg crate slides on a horizontal surface. The coefficient of kinetic friction between the surface and the crate is 0.383. estimate the magnitude of the external force acting on the crate
An ideal fluid in a pipe of diameter 14cm is moving at 6.0 m/s. If the incompressible fluid density is 1.05g/cc, what is the flow rate in kg/s and what is the speed of flow if the pipe narrows to 4.0cm radius?
A 6.0 μF air capacitor is connected across a 100 V battery. After the battery fully charges the capacitor, it is immersed in transformer oil (K = 4.5). How much additional charge flows from the battery, which remained connected during the process?
The charge per unit length on a glass rod is λ =-8.5 µC/m. If the rod is3.2 m long, how many excess electronsare on the rod?
what is the resistance in an rl circuit with l 38.21 mh if the time taken to reach 83.0 of its maximum current value
A large grinding wheel in the shape of a solid cylinder of radius 0.330 meter is free to rotate on a frictionless, vertical axle. Compute what is the mass of the wheel
The heat of vaporization of ethyl alcohol is about 200cal/g. If 1.30 kg of it were allowed to vaporize in a refrigerator, how various grams of ice would be formed from 0°C water.
Sodium atoms moving at 1000 m/s are incident on a slit having a width of 100 nm. At 3 m from the slit, what is the approximate transverse width of the sodium atoms wave function? These are typical values for experiments in atom optics.
The drawing shows a skateboarder moving at 6.78 m/s along a horizontal section of a track that is slanted upward by 51.6 ° above the horizontal at its end, find the maximum height H to which she rises above the end of the track
A wooden raft has a mass of 55 kg. When empty it floats in water (density 100 kg/m^3 with 64% of its volume submerged. What mass of sand can be put on the raft without it sinking
question1a golf ball with an initial angle of 30deg lands exactly 214 m down range on a level course.a neglect air
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