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(a) Use the strength of the magnetic field at the Earth's surface (4 x 10-5 T) to estimate the strength in the Van Allen belts.
(b) Use this estimate to calculate the radius of curvature (gyroradius) of a 50-MeV proton in the belts.
The fundamental frequency of a closed organ pipe is 264.9 Hz. What is the length of the open pipe
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. What is the average power generated by the lifting force
three charges shown in figure from an equilateral trangle with 4.9 cm long sides what is the electrical potentialat the point indicted with the dot
Find the pressure at pump discharge, rate of flow of a pump, energy required by the pump, and size of the pump motor.
A single-turn circular loop of radius 8.00 cm is to produce a field at its center that will just cancel the earth's field of magnitude 0.7G directed at 70 below the horizontal north direction. Find out the current in the loop.
Consider a map oriented so that the x axis runs east-west (with east being the "positive" direction), find the direction of the total movement of the driver
A liquid with density of 1.65 x10 cubed kg/m cubed flows through 2 horizontal sections of tubing joined end to end. in the first section, the cross-sectional area is 10 cm2.
A 1443 kg railroad car traveling at a speed of 10m/s strikes an identical car at rest. what is their common speed afterward
An elevator moves downward in a tall building at a constant speed of 3.80 m/s. Estimate the highest floor from which the bolt can fall
The Sun is a low mass star and so would never have the core fusion reactions of massive stars. Yet, the Sun has iron in its atmosphere, as well as gold, silver and other elements much heavier than iron and why?
A 14 g bullet travelling at 247 m/s is fired into a 0.459 kg wooden block anchored to a 100 N/m spring. How far is a spring compressed to the nearest thousandth of meter.
A lens for a 35-mm camera has a focal length given by f = 40mm. What is the magnification of the image on the film
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