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An electron is initially moving in the +z direction, with a speed v=2.54x105 m/s at z=0. In the regionbetween z=+1.50 cm and z=+2.50 cm, there is a uniform electric field of magnitude 4.10x104 N/C in the+x direction. Outside that region (z +2.50 cm) the electric field is zero. Find thevelocity of the electron after it leaves the field region (z > +2.50 cm.)
The drive shaft AB of an automobile is to be designed as a thin-walled tube. The engine delivers 125 kW when the shaft is turning at 1500 rev/min. Determine the minimum thickness of the shaft's wall
A ball is tossed with sufficient speed straight up so that it is in the air several seconds. a) What is the velocity of the ball when it reaches its highest point? b) What is its velocity 1s before it reaches its highest point?
Since the ends are open, the boundary conditions force the standing wave (representing the displacement of air molecules) that is produced in the bugle to have antinodes at the open ends of the bugle
A 100kg truck is pulled across rough ground by a rope angled at 30 degrees to the horizontal. The coefficient of sliding friction is .34. Find the maximum Acceleration without the truck leaving the ground.
how would you describe the discoveries of benjamin franklin robert millikan cgarles-augastin de coulomb and ernest
A light string is wrapped around the outer rim of a solid uniform cylinder of diameter 75.0 cm that can rotate without friction about an axle through its center. What is the mass of the cylinder
q1. a 0.270 kg block on a vertical spring with a spring constant of 5.00 x 103 nm is pushed downward compressing the
A 0.20 kg body undergoes simple harmonic motion of amplitude 9.7 cm and period 0.20 s. What is the magnitude of the maximum force acting on it
The amount of heat per second conducted from the blood capillaries beneath the skin to the surface is 240 J/s. The energyis transferred a distance of 2.0 x 10^-3 m through a body whosesurface area is 1.6 m^2. Assuming that the thermal conductivity..
The position of a mass m = 20.0 kg is given in by x(t) = 11.0sin ((10.0)t). Calculate the magnitude of the maximum force
A 15 g rifle bullet traveling 190 m/s buries itself in a 3.8 kg pendulum hanging on a 3 m long string, that makes the pendulum swing upward in an arc. Determine the horizontal component of the pendulum's maximum displacement.
A 1000 kg sports car of mass accelerates from rest to 20 m/s in 6.6 s. what is the force exerted by the road on the car
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