An astronaut is on a spacewalk outside her ship in gravity-free space. initially, the spacecraft and astronaut are at rest with respect to each other. then, the astronaut pushes to the left on the spacecraft and the astronaut accelerates to the right. which one of the following statements concerning this situation is true? the velocity of the astronaut increases while she is pushing on the spacecraft

Which branches of natural science include the study of an organism that lived 10 million years ago

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?