X-rays with a wavelength of 0.00100 nm are scattered by free electrons at 130°. What is the kinetic energy of each recoil electron?

What will be an ideal response?


248 keV

Physics & Space Science

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A 10 solar mass main sequence star will produce which of the following remnants?

A) black hole B) white dwarf C) neutron star D) none of the above

Physics & Space Science

What is released from the proton-proton chain and is immediately absorbed by the surrounding gas, thereby heating it?

a. positrons b. gamma rays c. deuterium d. electron motion e. neutrinos

Physics & Space Science

Which of the following objects does not produce a spectrum that is a close approximation to a thermal radiation spectrum?

A) a hot, transparent gas B) a star C) a filament in an ordinary (incandescent) light bulb D) you E) a planet

Physics & Space Science

A sewing machine needle moves up and down in simple harmonic motion with an amplitude of 1.27 cm and a frequency of 2.55 Hz. (a) What is the maximum speed of the needle? (b) What is the maximum acceleration of the needle?

What will be an ideal response?

Physics & Space Science