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A proton and an electron are moving due east in a constant electric field that also points due east. The electric field has a magnitude of 1.0×104 N/C. Decide the magnitude of the acceleration of the electron and the proton.
The mass of a copper atom is 1.54 10-25 kg, and the density of copper is 8 920 kg/m3. Find the edge dimension of each cube
A moth at about eye level is 5.9 cm in front of a plane mirror; you are behind the moth, 17.8 cm from the mirror. At what distance must you focus your eyes to see the image of the moth in the mirror, that is, what is the distance between your eyes..
converging lens has a focal length of 86.50 cm. A 14.0 cm tall object is located 135.0 cm in front of this lens. What is the image distance? Is the image real or virtual?
A student on a piano stool rotates freely with anangular speed of 3.16 rev/s. The student holds a 1.50 kg mass ineach outstretched arm, 0.794 m from the axis of rotation. Calculate the final kinetic energy of the system
A certain car battery with a 12.0 V emf has an initial charge of 178 A•h. assume that the potential across the terminals stays constant until the battery is totally discharged, for how long in hours can it deliver energy at the rate of 115 W.
an x-ray machine accelerates electrons over a 300kv potential difference. the current is 1ma and the efficency of x-ray
A 0.25 kg skeet (clay target) is fired at an angle of 28 degrees to the horizon with a speed of 25 m/s.
A uniform thin disk (I=1/3ML^2) of length L and mass M is pivoted at one end. It is held horizontal and released. Find the angular acceleration of the stick immeidately after it is released
A long straight wire lying along the x-axis carries a constant 5 A current along the positive x direction. A small 5mm diameter loop lies in the x-y plane centered at y = 2m. If the loop is suddenly stretched so that its area shrinks to zero in 0...
A drop of mercury released in the ocean and it sinks. Calculate the percentage change in the volume of the drop of mercury when it is at a depth of 1.0 km below the ocean surface
consider a piston cylinder with 0.5 kg of r-134a as saturated vapor at -10oc. it is now compressed to a pressure of 500
at each moment during its flight a projectile has a velocity v and an acceleration a. the components of these variables
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