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The solar wind consists of protons, electrons and other heavier irons and they have velocities of several hundred km per second. Moving charged particles experience a force when in an external magnetic field. The Earth's magnetic field at the equator has a value of approximately 3 x 10-5 T and is directed to the north. This field strength extends into the space above the earth.
Consider a solar wind proton moving at 5 x 105 m/s that approaches the earth from outer space along a line toward the center of the earth that lies on the plane of the equator. In what direction will the proton be deflected? Will it reach the earth's surface? What if the particle were an electron? Why is the Earth's Magnetic field important to life on the Earth?
Male mosquitoes in the mood for mating find female mosquitoes of their own species by listening for the characteristic "buzzing" frequency of the female's wing beats. How many wing beats occur in one minute
A projectile launched vertically from the surface of the Moon rises to an altitude of 316 km. What was the projectile's initial speed
consider a harmonic oscialltor of mass m under a restoring force -kx and damping force -bx. it is displaced at a and
Find an expression for the magnetic flux through the loop, in terms of the symbols above and appropriate constants, then evaluate the magnetic flux at time t = 25.0 s.
The second harmonic sinusoidal standing wave in a pipe with both ends open has a wavelength of 2.00 m. The sound speed is 340 m/s How many nodes and anti-nodes are there in the displacement wave? How many nodes are there in the pressure wave? Draw..
By holding a magnifying glass 35cm from your desk lamp, you can focus an image of the lamp's bulb on a wall 1.8m from the lamp
Calculate the energy (in MeV) released when α decay converts thorium 228Th (atomic mass = 228.028715 u) into radium 224Ra (atomic mass = 224.020186 u). The atomic mass of an α particle is 4.002603 u.
This question requires two answers. The isotope 12N undergoes radioactive decay to form 12C. What charged particle is emitted in the decay process
A flea jumps by exerting a force of 1.32x10-5 N straight down on the ground. Find the direction and magnitude of acceleration of the flea
In CHEM122 we do an experiment where the charge of an electron may be determined. How many hours does it take for this plating
A motorist drives south at 28.0 m/s for 3.00 minute, then turns west and travels at 25.0 m/s for 2.20 minute, and finally travels northwest at 30.0 m/s for 1.00 minute. determine average velocity and speed
A 10 kilogram block of ice slides down a frictionless ramp that goes from a ledge 10 meter above the ground to the ground. Determine what is the speed of the ice by the time it gets to the ground
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