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A 0.40-kg particle moves under the influence of a single conservative force. At point A where the particle has a speed of 10 m/s, the potential energy associated with the conservative force is +40 J. As the particle moves from A to B, the force does +25 J of work on the particle. What is the value of the potential energy at point B?
An electron is accelerated by the voltage 1000V. What is the kinetic energy and speed of the electron
A motor is designed to operate on 117 V and draws a current of 15.0 A when it first starts up. determine the resistance of the armature coil
what time delay Delta t is necessary. A boxcar of mass 600 tons at rest becomes uncoupled on a 5.00 grade. If the track is considered to be frictionless, what speed does the boxcar have after 15 seconds.
A cable lifts a 990 kilogram elevator at a fix velocity for a distance of 37 meter. Find the work done by the elevator weight
1. The two forces ({bf{vec F}}_1) and ({bf{vec F}}_2)shown in the figure (Figure 1) (looking down) act on a 15.0-({rm kg}) object on a frictionless tabletop. a. If (F_1)=13.0 ({rm N}) and (F_2)=21.0 ({rm N}) , find the magnitude of the net force on..
A horizontal wire of length 0.57 m, carrying a current of 8.0 A, is placed in a uniform external magnetic field. Determine the magnitude of the external magnetic field
bob walks 390m south then jogs 660m southwest then walks 390m in a direction 35circ east of north. a find the
The drawing shows a rectangular block of glass (n = 1.52) surrounded by a liquid with n = 1.73. At what angle does the ray leave the glass at point B
question the equation for the spherical wave front of a light pulse that begins at the origin at time t0 is
The generator at a power plant produces AC at 23,000 V. A transformer steps this up to 335,000 V for transmission over power lines. how many turns must there be in the output coil
Outline three examples of unusual properties of Nanostructured materials and Outline the density of states for 3D, 2D, 1D and 0D systems
A boy of mass 50 kg runs up a hill of vertical height 300 m in 20 minutes. calculate the work he does climbing the hill
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