The particle is in equilibrium.  How many unknowns are there in the scalar force summation equation for the particle in the z-direction?  

Assume that the tension in the cable is known and creates force vector F applied to the pipe at B.  To put the force F in Cartesian vector form, you would use the following approach:  

According to realism, reality consists of perceptions that follow consistent laws and patterns.

How many minutes of moderate intensity  physical activity are recommended for adults in the Physical Activity Guidelines for Americans? 

The substance that acts as solvent  and lubricant , as vehicle for transporting  nutrient and waste; and as a medium for  temperature regulation and  chemical processes is:

Developmental contextualism places an impact on development. 

—–  are environmental “opportunities” for developing motor skills.

Max heart rate increases with older age. 

A 40.00 mL solution containing an unknown concentration of H2SO4 is titrated with 22.62 mL of 0.2000 M NaOH solution.  Calculate the molarity of the H2SO4 solution.

Witherite is a mineral that contains barium carbonate. If a 1.68-g sample of witherite were to react completely with 24.6 mL of 0.2558 M HCl, what would be the percent of barium carbonate in the witherite sample? (Barium carbonate is the only compound present that reacts with the hydrochloric acid.)                                BaCO3   +   2 HCl     →     BaCl2   +   CO2   +   H2O