Children and adolescents should do hour or more of physical activity every day. a 5 b 7 c 3 d 1

What is created when solids,liquids,an gases mix with one another

Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?