Atomic and Nuclear Physics Answers

Physics question on volume and weight?

A certain part of an aircraft engine has a volume of 1.6 ft^3.
(a) Find the weight of the piece when it is made of silver.
____ lb

(b) If the same piece is made of aluminum, what is its weight?
____ lb

Determine how much weight is saved by using aluminum instead of silver.
____ lb

Physics Mass Density problem! HELP!!?

A box-shaped metal can has dimensions 14 in. by 4 in. by 5 in. high. All of the air inside the can is removed with a vacuum pump. Assuming normal atmospheric pressure outside the can, find the total force (in lb) on one of the 4-by-5 in. sides. (Enter the magnitude.)

______lb

A photon of light with a wavelength of 433 nm is emitted from an excited hydrogen atom. Through what transition did the electron in this atom undergo?

A small particle moves horizontally at 3.0 x10^6 m/s and entered a downward electric field produced by two horizontal plates, 2.0 mm apart, connected to a 40-V battery. If the charge-to-mass ratio of the particle is 1.0 x10^8 C/kg, what is the instantaneous acceleration?

an 80-N force has been applied to a block and move it 20 m along the direction of the force. How much work has been done to the block?

For a “black disk” absorber, as in Equation 11.34,

R/X
0 = (2e+ i)n~~ = n(~ + A)’ (11.34)
e= o

in which all partial waves
are completely absorbed up to
d= R/X (qe= 0 for complete absorption)
and unaffected for
t‘> R/X ( qe = l), then
uSc = T(R + A)’
(11.49)
and
so that
ur =’a@ + A)’
(11 -50)
ut = 2v(R + A)’ (11.51)

derive black disk scattering

Among the nuclei in which there are known
E4 transitions are 44Sc, 52Mn,
86Rb, 93MO,141n, and 202Pb. Look up the partial lifetimes for these
transitions from collections of spectroscopic data, and compare with values
calculated from the Weisskopf estimates.

In the decay of 6He to 6Li , the maximum beta kinetic energy is 3.5 10±0.004 MeV. find the mass of 6He given the mass of 6Li ?

For the alpha decay of 226Ra to 222Rn (Q = 4.869 MeV, compute the expected Half-lives for values of the 222Rn radius of 7.0, 8.0, 9.0, and 10.0 fm. Estimate the nuclear radius required to give the measured half-life (1602 years): deduce the corresponding value of Rn and interpret.

The 662-keV photon in the decay of 137Cs is observed by a NaI detector with an energy resolution (FWHM) of 53 keV. What will be the resolution for a measurment of the 1.837-MeV phton in the decay of 88Y?