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A uniform, upward-pointing electric field E of magnitude 4.00×103N/C has been set up among two horizontal plates with charging the lower plate positively and the upper plate negatively. The plates have length L = 4 cm and separation d = 2.00 cm. Electrons are shot among the plates from the left edge of the lower plate.
The first electron has the initial velocityv0, which makes an angle θ=45° with the lower plate and has a magnitude of 5.52×106m/s. Will this electron strike one of the plates? If so, what is the horizontal distance from the left edge? If not enter the vertical position at which the particle leaves the space among the plates.
The box of a well-known breakfast cereal states that one ounce of the cereal contains 107 Calories (1 food Calorie = 4186 J). what is the weight of the heaviest barbell
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A vertical scale on a spring balance reads from 0 to 185N . The scale has a length of 13.0cm from the 0 to 185N reading. what is the mass of the fish
A pool ball istraveling at 2.0 m/s towards an identical pool ball, which isinitially at rest. After thecollision, the first ball moves with a speed of 1m/s at an angle of10o with respect to thepositive x - axis. Find the velocity of the second cuebal..
The owner of a van installs a rear-window lens that has a focal length of -0.295 m. When the owner looks out during the lens at a person standing directly behind the van, the person appears to be now 0.242 m from the back of the van, and appears to b..
An atom is ionized so that it has only one electron. When the electron drops from the n = 3 shell to the n = 1 shell, an X-ray of wavelength 67.44 pm is emitted. What is the atomic number
A 1.5-kg playground ball is moving with a velocity of 3.0 m/s directed 30° below the horizontal just before it strikes a horizontal surface. find the magnitude of the average resultant force on the ball
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