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A uniform electric field of magnitude 359 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.60 cm.
1. What is the work done by the field on the electron? J
2. What is the change in potential energy associated by the electron? J
3. What is the velocity of the electron? Magnitude m/s direction
A slide projector has a converging lens whose focal length is 119.00 mm. How far from the lens must the screen be located if a slide is placed 122 mm from the lens
A certain lightbulb has a tungsten filament with a resistance of 19.5 ? when at 20.0°C and 142 ? when hot. Assume the resistivity of tungsten varies linearly with temperature even over the large temperature range involved here. Find the temperature o..
Two identically constructed clocks are synchronized. One is put into orbit around Earth, and the other remains on Earth. Which clock runs more slowly? When the moving clock return to Earth, will the two clocks still be synchronized? Talk about from t..
a light spring whose unstretched length is 2.0 cm. You're going to use this spring to measure charge. First, you attach one end of the spring to the ceiling, What is the charge on the ball
If one shines a laser with wavelength ? = 650 nm through a single slit of width a = 0.04 mm, draw the diffraction pattern you might expect on a screen 10 m behind slit
A 226 kg beam 2.0 m in length slides broadside down the ice with a speed of 30 m/s, How fast does the center of mass of the system move after the collision
A rifle with a barrel length of 61.0 cmfires a 10.0 g bulletwith a horizontal speed of 360 {\rm m/s}. How long does it take the bullet to come to rest
A small rigid cylindrical vessel contains 1 kg of humid air at 80oC under a total pressure of 1 bar. The humid air inside the vessel contains 0.150 kg of water vapor. Determine the relative humidity of the air in the container.
A person weighing 500 N climbs a ladder leaning against awall. The ladder weighs 100 N and is 2.00 M long, How high does the person get before this begins to happen
A 2.0 kg, 30-cm-diameter disk is spinning at 300 rpm. How much friction force must the brake apply to the rim to stop it in 3.0 s? find the force by the definition of torque
A 4.29-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box, Determine the kinetic frictional force that acts on the box
question an arctic weather balloon is filled with 10.2l of helium gas inside a prep shed. the temperature inside the
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