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A lumberjack (m= 98 kg) is standing at rest on one end of afloating log (m= 230 kg) that is also at rest. The lumberjackruns to the other end of the log, attaining a velocity of +3.6 m/srelative to the shore, and then hops onto an identical floating logthat is initally at rest. Neglect any friction and resistancebetween the logs and the water.
a- What is the velocity of the first log just before thelumberjack jumps off?
b- Determine the velocity of the second log if the lumberjackcomes to rest on it.
Two wheels are free to spin about the same axle. The moment of inertia of wheel 1 is 2.16 kg m2, and the moment of inertia of wheel 2 is 1.02 kg m2. What is the magnitude of the angular momentum of the two disk system in this initial position
An electron enters a parallel plate capacitor with a speed of 5.45e+06 m/s. An electric field in the capacitor has deflected the electron downward by a distance of 0.618cm after traveling a horizontal distance of 2.25cm. Find the magnitude of the ele..
An object located 25.0 cm from a convex mirror produces a virtual image 16 cm from the mirror. What is the magnification of the image
For your senior project, you are designing a Geiger tube for detecting radiation in the nuclear physics laboratory. This instrument will consist of a long metal cylindrical tube that has a long straight metal wire running down its central axis.
The giant hornet Vespa mandarinia japonica preys on Japanese bees. However, if one of the hornets attempts to invade a beehive, several hundred of the bees quickly form a compact ball around the hornet to stop it. They don't sting, bite, crush, or..
A converging lens and a diverging lens, separated by a distance of 30.0 cm, are used in combination. Calculate the focal length of the diverging lens
A narrow beam containing red (660 nm) and blue (470 nm) wavelengths travels from air through a 2.60 cm thick flat piece of crown glass, By what distance are the red and blue separated when they emerge
A photon is emitted when a hydrogen atom undergoes a transition from the n = 9 state to the n = 4 state. Calculate the energy of the emitted photon
Matt is sailboarding northeast across the river with a velocity of 10 m/s relative to the water. what is the resultant or true velocity of the sailboard
A 900 kg car travelling east at 15 m/s collides with 750 kg travelling north at 20 m/s. what is the speed of the wreckage
A flat sheet of crystalline quartz has a thickness of 1.6 cm. It is on top of the flat sheet of diamond that has a thickness of 2.10 cm. Light strikes the crystalline quartz perpendicularly and travels through it and then throughout the diamond.
A 2.1 ? 103-kg car starts from rest at the top of a 4.5-m-long driveway that is inclined at 15° with the horizontal. find the speed of the car at the bottom of the driveway
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