two forces whose resultant is 100n are perpendicular to each other, if one of them makes an angle of 60° with the resultant. calculate its magnitude. (sin 60°=0.8660, cos 60°=0.5000)

Haley rubs a cotton cloth along a plastic strip. the plastic strip becomes positively charged. why did this happen? a. the plastic strip gained protons from the cotton. b. the plastic strip lost protons to the cotton. c. the plastic strip gained electrons from the cotton. d. the plastic strip lost electrons to the cotton.

Chi walked 100 meters in 5 minutes. she took another 15 minutes to walk another 400 meters to reach her house. what is her average speed?

Remember, the density of water is 1g/cm3, so the mass of water equals the volume of the rose quartz. find the density of the rose quartz. find the specific gravity of the rose quartz. specific gravity = density of of water. what are the units for specific gravity?