Hydrogen lines are strongest in class A stars
Indicate whether the statement is true or false
TRUE
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To say there is no such thing as only one force means
A) there must also be an oppositely directed force. B) other forces, perhaps not evident, are there. C) gibberish.
Circular Motion of Charges: A proton is accelerated from rest through 0.50 kV. It then enters a uniform magnetic field of 0.30 T that is oriented perpendicular to its direction of motion.(a) What is the radius of the path the proton follows in the magnetic field?(b) How long does it take the proton to make one complete circle in the magnetic field?.
What will be an ideal response?
A neutron has a mass of 1.67 × 10^?27 kg. The de Broglie wavelength is 1.4 × 10^?10 m. How fast is the neutron going? (in m/s)
a. 3.4 × 10^3 b. 2.8 × 10^3 c. 3.9 × 10^3 d. 2.6 × 10^3 e. 1.7 × 10^3
The ___________ of a black hole is the radius from a black hole at which the escape velocity is approximately equal to the speed of light
a. Roche limit b. Lagrangian point c. Chandraskhar limit d. Hubble radius e. event horizon