A boat, with a mass of 150kg, stars at rest with an acceleration of +1.5 m/s2 when going in the same direction of the current and engine at its fullest. In a second experiment, the boat, with the same mass, departs from rest in the direction opposite to the current, also at full engine performance. In this second case the acceleration of -1.0m/s2. A Diagram follows.
Ignoring Friction
a) Draw the appropriate Free Body Diagrams
b) FindThe Force applied by the engine.
b) The Force of the current

II) When Friction is 20N, and Fboat and FCurrent are the same as in I.

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

On a hot saturday morning while people are working inside, the air conditioner keeps the temperature inside the building at 22degreesc. at noon the air conditioner is turned off, and the people go home. the temperature outside is a constant 33degreesc for the rest of the afternoon. if the time constant for the building is 4 hr, what will be the temperature inside the building at 4 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? at 6 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? when will the temperature inside the building reach 24degreesc? 324281

Is the portion of the electromagnetic spectrum that has a frequency just above that of visible light.