1) a rock thrown horizontally from the top of a
water tower lands 20.0 m from the base of the
tower. if the rock was initially thrown at a velocity
of 10.0 m/s,
a) how high is the water tower?
b)what is the final velocity of the rock?

What is the approximate amplitude of this wave a.10 seconds b.15 centimeters c.30 centimeters d.15 seconds

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

Difference between series and parallel circuits