In parts b and c you saw that, according to bohr's postulate, the electron radius r and the electron velocity v only have certain allowable values. plug the values obtained for these two quantities into the energy statement given below (e=) to arrive at a new statement for the allowed energy levels in the bohr atom. express answer in terms of e, m, n, h, \epsilon _{0} . equations: v=nh/2mr\pir=n^{2}h^{2}\epsilon _{0}/m\pi e^{2}e=\frac{1}{2}mv^{2}-(e^{2}/4\p i r\epsilon _{0})

Which one of the following research methods can show cause and effect

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.

The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.