Light from an incandescent wire disperses into a(n) ______________ spectrum
Fill in the blank(s) with correct word
continuous
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Hydrogen gas seems to have a diffusivity of about 2.6 x 10^-13 m^2/s when diffusing into iron at 770 K. What would you expect the rate of diffusion or mass flow rate per unit area of hydrogen to be when stored in an iron container at 5 atmospheres pressure, assuming the density of hydrogen at 1 mm in the iron from the containing surface to be 5% of the normal hydrogen density, given by p/RT?
What will be an ideal response?
Eclipses can occur only when, viewed from Earth, the Sun is near one of the _______________. of the Moon's orbit
Fill in the blank(s) with correct word
The sum of two vectors has the greatest magnitude when the angle between these two vectors is
What will be an ideal response?
How fast would a rocket ship have to move to contract to half of its proper length (as observed by a stationary object)?
A) 0.25c B) 0.50c C) 0.65c D) 0.78c E) 0.87c