Radio telescopes detect waves with a wavelength of roughly 10 m.
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Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block

If you let go of the notebook after lifting it, will it move? how?