The the object, the effect a force will have on its motion.
a.
softer; less
b.
harder; less
c.
lighter; less
d.
heavier; less

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?