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An electron enters a region where the electric field is uniform, directed vertically downward, and has a magnitude of 700 N/C. This region of uniform field is 1. 5 cm long and 0. 7 cm high. The electron is projected into this region after being accelerated by a horizontal electric field having a magnitude of 3. 0 103 N/C over a distance of 2. 5 cm. Find the magnitude of the vertical deflection of the electron as it exits this region.
THe Voyager one has a 20-W radio transmitter and is expected to transmit to 2025 when it is 25 billion km from the earth. WHat's the Diameter of a dish antenna
A 43.0-kg child swings in a swing supported by two chains, each 2.92 m long. The tension in each chain at the lowest point is 346 N. Find the child's speed at the lowest point
A solid steel rod of length 120-cm and mass 450 grams, is rotated about its center with an angular acceleration 23 rad/s2. What is the moment of inertia of the rod, What is the net torque acting on the rod
Calculate the angle of refraction at the first surface
How many 111 W lightbulbs can you use in a 107 V circuit without tripping a 16 A circuit breaker? (The bulbs are connected in parallel, that means that the potential difference across each lightbulb is 107 V.)
A sailor drops a wrench from the top of a sailboat's vertical mast while the boat is moving rapidly and steadily straight forward. Where will the wrench hit the deck
a starship departs for the triple star system of Alpha/Proxima Centauri which is 4.30 LY from earth. what will be the reading of the clocks back on earth
A converging lens has 31.3 cm focal length, and is placed 20.9 cm behind a diverging lens. Parallel light strikes the diverging lens, What is the focal length of the diverging lens in cm
A 0.14- kg block on a wooden table is given a sharp blow with a hammer. The block then slides across the table to a stop. How far does the block go
Four equal point charges of +3.0 uC are placed in air at the our corners of a square that is 40cm on a side. find the force on any one of the charges
A two-slit pattern is viewed on a screen 1.12 m from the slits. what is the total width of the central bright fringe
train engine has a mass of 2.1 x 107 and is moving acrossed a bridge at 23.9 miles per hour what is the kinetic
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