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A tiny hole is made in the center of the negatively and positively charged plates of a capacitor, allowing a beam of electrons to pass through and emerge from the far side. If 3.9 V are applied across the capacitor plates and the electrons enter through the hole in the negatively charged plate with a speed of 2.90* 10^6 m/s, what is the speed of the electrons as they emerge from the hole in the positive plate?
Using the elbow joint as the axis of rotation, determine the magnitude of the net torque acting about the elbow due to the forearm, hand, and ball
The maximum torque experienced by a coil in a 0.82-T magnetic field is 9.6 x 10-3 N·m, What is the length of the wire from which the coil is made
A robot probe drops a camera off the rim of a 388 m high cliff on Mars, where the free-fall
You've been given the task of designing a "water couch"-that one could lie on, floating on a lake, for instance-in the form of a flat rectangular slab made of Styrofoam with a density of 85 kg/m 3. Explain why he will not be able to breathe that wa..
450 nm of light falls on a single slit of width 0.30 mm. What is the angular width of the central diffraction peak
a steel cable of diameter 3.0 cm supports a load of 2.0kN. what is the fractional length increase of the cable compared with the length when there is no load if Y=2.0 x 10^11 Pa
q1. a piece of wood is 6.00 m long 0.260 m wide and 0.060 m thick. its density is 600kgm cubed. what volume of iron p
Water flows over a section of Niagara Falls at the rate of12.9 x10e6 kg/s and falls 54m. How much power is generated bythe falling water
A 1.30-kg object is attached to a spring and placed on frictionless, horizontal surface. A horizontal force of 15.0 N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position (the origin of the x axis).
The effective vibrational force constant of CN is 1.017 x 104 eV/nm2. Relative to the ground state, find the energy of the second excited vibrational state.
A uniform rod of mass 3.35×10?2kg and length 0.430m rotates in a horizontal plane about a fixed axis through its center, What is the angular speed of the rod after the rings leave it
If 50.0cm of copper wire (diameter = 1.0mm) is formed into a circular loop, at what rate is thermal energy generated in the loop
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