[s30.93a]

1. both the H are chemically and magnetically equivalent thus will split into singlet and we can't distinguish between the two spectra and tell which is trans or cis
2. each H will split as doublet(vinyl), doublet of quartet (vinyl and on same carbon having methyl) and doublet (methyl) but I don't know whether we can predict for cis or trans
Note: splitting of aromatic H are ignored.
Please check the above solution for (1) and further guide for (2)

[Babcock_Hall]

Besides chemical shift, what other information is available from NMR spectra?

[s30.93a]

1. J value can be roughly estimated
2. area under the curve will tell no of H
3. no. of peaks will tell how many adjacent H are present to split it

[Babcock_Hall]

With respect to 1, I am not sure what you mean by roughly estimated.  Also with respect to 1, have you heard of the Karplus relationships?  These govern the value of coupling constants as a function of the dihedral angle between the two nuclei.

[s30.93a]

yes i knew that formula, by roughly estimation I mean we can compare width between the peaks and thus deduce what is the intensity of splitting, as J(trans)>J(cis) that can be seen in spectra

[Babcock_Hall]

Therefore, one can distinguish cis versus trans by the magnitude of the coupling constant.