A boy pulls a 150 kg sled across the ice using a force of 20 N northward. What is the acceleration of the sled?

What term do psychologists use to designate our personal awareness of feelings, sensations, and thoughts?

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Asubmarine has a "crush depth" (that is, the depth at which water pressure will crush the submarine) of 250 m. what is the approximate pressure (water plus atmospheric) at this depth? (recall that the density of seawater is 1025 kg/m3, g = 9.81 m/s2, and 1 kg/(ms2) = 1 pa = 9.8692 10-6 atm.) a. 34.8 atm b. 24.8 atm c. 25.8 atm d. 7.8 atm