Which of the following isomeric dibromopropanes has only a single peak in its proton nmr spectrum? a) 1,1-dibromopropaneb) 1,3-dibromopropanec) 1,2-dibromopropaned) 2,2-dibromopropane

What is the magnitude of the force of gravity between to 1000 kg cars which are separated by distance of 25. 0 km on an interstate highway? the force between the two cars will be what