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An electron beam is accelerated during a potential of 5.0 kV such that the electrons all have essentially the same speed in the same direction. Compute the DeBroglie wavelength for the electrons.
An electron is accelerated from rest in a uniform electric field of intensity 420 N/C. Find the following: its velocity and kinetic energy after 3.0 nanoseconds. the distance it travels during the time interval
A simple magnifier of refractive power 15.0 D is used to observe a beetle on a student's desk. where is the image formed relative to the lens
A bucket is filled with a combination of water (density 1000 kg/m3) and oil (density 700 kg/m3). what is the pressure at the interface between the oil and the water
Think a parallel plate capacitor composed of two very large (approximate as infinite) square plates as shown in Figure 2. The actual area of the plates is 0.2 m2 and when a charge of 2.5 × 10 -6 C is placed on every plate (positive on one, negative o..
Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 79.1 N, Jill pulls with 76.7 N in the northeast direction, Find the magnitude of the net force the people exert on the donkey
A 253 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal.
A 500 g wooden block is lowered carefully into a completely full beaker of water and floats. What is the weight of the water, in newtons, that spills out of the beaker
A meter long 1.0 cm diameter nichrome heater wire is associated to a 12V battery. What is the magnetic field strength 1.0 cm away from the wire.
The figure(Figure 1) shows the light intensity on a screen behind a double slit. The slit spacing is 0.25 mm and the wavelength of the light is 610 nm What is the distance from the slits to the screen?
A jet takes off from SFO to YUL. The distance between the airports is 4100 km. After a 1 hour layover, the jet returns to SFO. what is the average speed without the layover
A woman walks for 4 min directly north with a average velocity of 6 km/h; then she walks eastward at 4 km/h for 10 min. What is the magnitude of her average velocity
an object is 15 in front of a diverging lens with a focal length of 10 . a. use ray tracing to determine the location
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