In an airplane crash a woman is holding an 8/18 kg baby. In the crash the woman experiences a horizontal de-acceleration of 88.2 m/s? How much force must the woman exert to hold the baby in place?

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio

Which type of basaltic lava flow has a fairly smooth

Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?