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An electron (charge q = -1.6x10-19 C and mass m = 9.1x10-31) moving at speed v enters a region where a uniform magnetic field B = 1.9 × 10-4 T bends the path of the electron into a semicircle with radius of r = 3.5 cm as shown.(a) What is the speed of the electron as it enters the region of non-zero magnetic field?(b) What is the speed of the electron as it leaves the region of non-zero magnetic field?(c) How much work was done on the electron by the magnetic field in this region?
A magnetic-field technique for stabilizing a He-Ne laser to 2parts in 1010has been patented. At 632.8 nm, what would be the coherence length of a laser with such frquency stability
As blood passes through the capillary bed in an organ, the capillaries join to form venules (small veins). what is the total cross-sectional area of the capillaries feeding these venules
A 40.0 ball of clay traveling east at 5.00 collides and sticks together with a 40.0 ball of clay traveling north at 3.00. What is the speed of the resulting ball of clay
The CGS unit for measuring the viscosity of a liquid is the poise (P): 1 P = 1 g/(s·cm). Express this viscosity in poise
two charges, q1 and q2 are present on a normal coordinate system ,point A is located at the orgin, q1 has a charge of 1.11 nC, what is the electric potential at point A
When two tuning forks of 146Hz and 161Hz, respectively, are sounded simultaneously, how many beats per second are heard.
For a damped oscillator with a mass of 180 g, a spring constant 58 N/m and a damping coefficient of 60g/s, what is the ratio of the amplitude of damped oscillations to the initial amplitude at the end of 26 cycles.
a horizontal circular platform rotates counterclockwise about its axis at the rate of 0.805 rad/s. You, with a mass of 67.3 kg, Calculate the total angular momentum of the system
A supertanker filled with oil has a total mass of 11.7·108 kg. If the dimensions of the ship are those of a rectangular box 209 m long, 81.7 m wide
An electron with an initial speed of 4.00×105m/sis brought to rest by an electric field, What was the initial kinetic energy of the electron, in electron volts
A pilot flies an airplane at a constant speed of 520 km/hr in the vertical circle of radius 1400 m. compute the force exerted by the seat on the 105-kg pilot at point A and at point B.
What wavelength of electromagnetic waves is needed so that the first strong interference maximum in the Bragg reflection occurs when the waves strike the planes at an angle of 15.0o, At what other angles will strong interference maxima occur
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