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?
Compare the New Deal of the 1930s to current government programs designed to stimulate the economy and explain which program you believe (was) (is) more effective in restoring economic recovery.
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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