Xrays with a wavelength of 0.085nm diffract from a crystal in which the spacing between atomic planes is 8.50×10−2 nm . part a how many diffraction orders are observed?

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?

Why does a smaller car get better gas mileage than a bigger one?

Which type of heating system is used to heat many buildings from a central location?