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An electron initially traveling at a speed of 10^5 m/s enters a region where there is a uniform magnetic field of 2 T oriented 45 degrees to its initial velocity. Quantitatively describe the trajectory of the electron, including its path, the orbit radius and average velocity of the electron.
An office window has dimensions 3.4 m by 1.7 m. As a result of the passage of a storm, the outside air pressure drops to 0.95 atm, but inside the pressure is held at 1.0 atm.
The index of refraction of benzene is 1.8. What is the critical angle for a light ray traveling in benzene toward a flat layer of air above the benzene
Write out the constants for b (B1 and B2) in terms of the previous constants for a Do the same for c) in terms of the constants for b), the constants in d in terms of those for c and finally the constants for a) in terms of those from d.
A worker is to paint the walls of a square room 8.00 fthigh and 12.0 ft along each side. What surface area in squaremeters must she cover
A certain person in a typical conversation speaks at a sound level of 63 dB. The music at a certain rock concert reaches a sound level of 110 dB. How many times as great is the intensity of the music?
A satellite of mass 190 kg is placed into Earth orbit at a height of 600 km above the surface. how long does the satellite take to complete one orbit
a small charged bead has a mass of 3.7 . it is held in a uniform electric field 200000 up. when the bead is released
A model of a red blood cell portrays the cell as a spherical capacitor a positively charged liquid sphere of surface area A separated from the surrounding negatively charged fluid by a membrane of thickness t. Estimate the capacitance of the cell
A nearsighted patient's far point is 0.723 m from her eyes. What is the distance between her eyes and the glasses
The drawing shows three situations — A, B, and C — inwhich an observer and a source of electromagnetic waves are movingalong the same line. In each case the source emits a wave that hasa frequency of 4.57 x 1014 Hz.
a physics student playing with an air hockey table a frictionless surface finds that if she gives the puck a velocity
A lamp (R = 145 ), an electric heater (R = 24 ), and a fan (R = 49 ) are connected in parallel across a 121 V line. What is the current in the lamp
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