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The solar wind is a thin, hot gas given off by the sun. Charged particles in this gas enter the magnetic field of the earth and can experience a magnetic force. Suppose a charged particle traveling with a speed of 9.00 106 m/s encounters the earth's magnetic field at an altitude where the field has a magnitude of 1.00 10-7 T. Assuming that the particle's velocity is perpendicular to the magnetic field, find the radius of the circular path on which the particle would move if it were each of the following. (a) an electron ___________ m (b) a proton ___________m
If the person in the figure lowers his forearm with mass 1.2kg to be 15 degrees below horizontal, how much force must the biceps exert to hold the 500g ball
The 9 inch long elephant nose fish in the Congo River generates a weak electric field around its body using an organ in its tail. How many electrons would be required to create that charge
question1a ferryboat transports tourists among three islands. it sails from the first island to the second island 5.98
Antenna A and Antenna B emit coherent radio waves. Antenna A is 125m due north of Antenna B. Constructive interference occurs 175m due east of antenna B. Determine the three longest possible wavelengths being emitted by the antennae.
It has been suggested that rotating cylinders about 9.0 mi long and 4.6 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have
The level of the liquid surface in the tank can be calculated. If the pressure on the gage is 20 kPa, Determine the depth d of liquid in the tank?
At a distance of 10 Km, a 100 Hz horn, assumed to be anisotropic point source, is barely audible. At what distance wouldit begin to cause pain
The lenses used in a compound microscope have powers of + 90 D and + 60 D . If a total magnification of -250 x is desired, what should be the distance between the two lenses
Find the total number of lines in a 2.90 wide diffraction grating whose third-order spectrum has the 640 hydrogen- spectral line at an angular position of 39.0.
A sinusoidal wave on a string is described by the wave function y = 0.20 sin (0.70x ? 51t) where x and y are in meters and t is in seconds. Determine power transmitted by the wave
A charged isolated metal sphere of diameter 8.0 cm hasa potential of 7800 V relative to V = 0 at infinity. Calculate the energy density in the electric field
A 99 kg girl dives off a raft 2.25 square meters floating in a freshwater lake. By how much does the raft rise in cm
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