How do astronomers best learn about distant objects in the universe a. they collect and analyze data from their electromagnetic radiation. b. they analyze rock samples from space probes. c. they study nearby objects and match their properties with those of distant objects.

The pressure increases by 1.0 x 104 n/m^2 for every meter of depth beneath the surface of the ocean. at what depth does the volume of a pyrex (bulk modulus 2.6 x 1010n/m^2) glass cube, 9.8 x 10^−2m on an edge at the ocean's surface, decrease by 7.5 x 10−10m^3? explain the formula beyond this point: p=1.0x10^4, b=2.6x10^10, l=9.8x10^−2, delta v=7.5x10^−10. at some point l needs to be cubed. why p is divided by delta v?

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

With physics question #5? for any !