What magnetic field strength is required
A proton moves with a speed of 3.10 106 m/s horizontally, at a right angle to a magnetic field. What magnetic field strength is required to just balance the weight of the proton and keep it moving horizontally? Answer in units of T.
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The masses of the three blocks are m1 = 15 kg, m2 = 27 kg, and m3 = 50 kg. The pulling force is equal to T3 = 18 N. What is the acceleration of the system?
How much heat must be added to .45 kg of aluminum to change it from a solid at 130 degrees celsius to a liquid at 660 degrees celsius? the latent heat of fusion for aluminum is 4.0 x 10^5 J/kg.
A fighter plane flying at constant speed 320 m/s and constant altitude 12000 m makes a turn of curvature radius 1900 m. On the ground, the plane's pilot weighs (83 kg) (9.8 m/s2) = 813.4 N. What is his/her apparent weight during the plane's turn?
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Describe your local and surrounding ecologies and environments. List the specific factors that distinguish your local ecology and environment.
A 12 kg runaway grocery cart runs into a spring with spring constant 260 N/m and compresses it by 65 cm. What was the speed of the cart just before it hit the spring?
Drops a shell whn it is 12.5m above the ground. what is the mgnitude and direction of the shell's acceleration just afther it is realeased?
An electric field of 120000 N/C points due west at a certain spot. What is the magnitude of the force that acts on a charge of -7.8C at this spot?
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