Amass of 150 kg is supported at the end of a cantilever beam of length 0.8m. the modelus of elasticity of the beam is: e-210 x 109 n/m2 and second moment of area of the natural frequency of the system?

Zirconium has an hcp crystal structure and a density of 6.51 g/cm3. (a) what is the volume of its unit cell in m3? (b) if the c/a ratio is 1.593, compute the values of c and a.

What type of nuclear decay causes the atomic number of an element to increase by 1?

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?