What does the 235 represent in uranium-235?
a. the mass number c. the neutron number
b. the atomic number d. none of the above
A
You might also like to view...
A ball vibrates back and forth from the free end of an ideal spring having a force constant (spring constant) of 20 N/m. If the amplitude of this motion is 0.30 m,
what is the kinetic energy of the ball when it is 0.30 m from its equilibrium position? A) 0.00 J B) 0.22 J C) 0.45 J D) 0.90 J E) 1.4 J
Diffraction Gratings: The distance between the ruled lines on a diffraction grating is 1900 nm. The grating is illuminated at normal incidence with a parallel beam of white light in the 400 nm to 700 nm wavelength band. What is the angular width of the gap between the first order spectrum and the second order spectrum?
A. 3.3° B. 4.3° C. 5.3° D. 6.3° E. 2.3°
A Boeing 737 airliner has a mass of 20 000 kg and the total area of both wings (top or bottom) is 100 m2 . What is the pressure difference between the top and bottom surface of each wing when the airplane is in flight at a constant altitude?
a. 1 960 N/m2 b. 3 920 N/m2 c. 7 840 N/m2 d. 4 560 N/m2 e. 3 070 N/m2
Significant Figures: In a parallel universe, the quantity ? has the value 3.14049… . Express ? in that universe to(a) four significant figures(b) five significant figures.
Fill in the blank(s) with the appropriate word(s).